Abstract

We propose long-haul space-division-multiplexing (SDM) transmission systems employing parallel multiple-input multiple-output (MIMO) frequency-domain equalization (FDE) and transmission fiber with low differential mode delay (DMD). We first discuss the advantages of parallel MIMO FDE technique in long-haul SDM transmission systems in terms of the computational complexity, and then, compare the complexity required for parallel MIMO FDE as well as the conventional time-domain equalization techniques. Proposed parallel MIMO FDE that employs low baud rate multicarrier signal transmission with a receiver-side FDE enables us to compensate for 33.2-ns DMD with considerably low-computational complexity. Next, we describe in detail the newly developed fiber and devices we used in the conducted experiments. A graded-index (GI) multicore few-mode fiber (MC-FMF) suppressed the accumulation of DMD as well as intercore crosstalk. Mode dependent loss/gain effect was also mitigated by employing both a ring-core FM erbium-doped fiber amplifier and a free-space optics type gain equalizer. By combining these advanced techniques together, we finally demonstrate 12-core $\times$ 3-mode dense SDM transmission over 527-km GI MC-FMF without optical DMD management.

© 2015 OAPA

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2015 (4)

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

H. Ono, T. Hosokawa, K. Ichii, S. Matsuo, and Yamada,“Improvement of differential modal gain in few-mode fibre amplifier by employing ringcore erbium-doped fibre,” Electron. Lett., vol. 51, no. 2, pp. 172–173, 2015.

2014 (3)

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

2013 (5)

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

2012 (3)

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

N. Bai and G. Li, “Adaptive frequency-domain equalization for mode-division multiplexed transmission,” IEEE Photon. Technol. Lett., vol. 24, no. 21, pp. 1918–1921, 2012.

2011 (2)

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

M.S. Faruk and K. Kikuchi, “Adaptive frequency-domain equalization in digital coherent optical receivers,” Opt. Express, vol. 19, no. 13, pp. 12789–12798, 2011.

1992 (1)

J. J. Shynk, “Frequency-domain and multirate adaptive filtering,” IEEE Signal Process. Mag., vol. 9, no. 1, pp. 14–37, 1992.

1986 (1)

P. Duhamel, “Implementation of ‘split-radix' FFT algorithms for complex, real, and real-symmetric data,” IEEE Trans. Acoust. Speech Signal Process., vol. 34, no. 2, pp. 285–295, 1986.

Abe, Y.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

Adamiecki, A.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

Alam, S.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Awaji, Y.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Bai, N.

N. Bai and G. Li, “Adaptive frequency-domain equalization for mode-division multiplexed transmission,” IEEE Photon. Technol. Lett., vol. 24, no. 21, pp. 1918–1921, 2012.

Benitez, A. V.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

Bennett, K.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Bland-Hawthorn, J.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

Burrows, E.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Cai, Y.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Chandrasekhar, S.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Chang, D.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Chen, H.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Corbett, B.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Correa, R. A.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

Corteselli, S.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Delbue, R.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Dhar, A.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Duhamel, P.

P. Duhamel, “Implementation of ‘split-radix' FFT algorithms for complex, real, and real-symmetric data,” IEEE Trans. Acoust. Speech Signal Process., vol. 34, no. 2, pp. 285–295, 1986.

Ellis, A. D.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Ercan, B.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

Esmaeelpour, M.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

Essiambre, R. J.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Faruk, M.S.

Fontaine, N. K.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Gnauck, A. H.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Goh, T.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

Grüner-Nielsen, L.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Guan, B.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

Hauske, F. N.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Hayashi, T.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

Hiraga, K.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

Hosokawa, T.

H. Ono, T. Hosokawa, K. Ichii, S. Matsuo, and Yamada,“Improvement of differential modal gain in few-mode fibre amplifier by employing ringcore erbium-doped fibre,” Electron. Lett., vol. 51, no. 2, pp. 172–173, 2015.

Hu, J.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Huang, B.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

Huang, M. J.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Huang, Y. K.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Ichii, K.

H. Ono, T. Hosokawa, K. Ichii, S. Matsuo, and Yamada,“Improvement of differential modal gain in few-mode fibre amplifier by employing ringcore erbium-doped fibre,” Electron. Lett., vol. 51, no. 2, pp. 172–173, 2015.

Igarashi, K.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

Imamura, K.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Inaba, H.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Inan, B.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Ip, E.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Ishida, I.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

Ishihara, K.

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

Jensen, R. V.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Jung, Y.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Kang, Q.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Kanno, A.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Kawaguchi, Y.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

Kawakami, H.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

Kawanishi, T.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Kikuchi, K.

Kishikawa, H.

Klaus, W.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Kobayashi, T.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Kokubun, Y.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

Koonen, A. M. J.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Koreshkov, K.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Korolev, A.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Koshiba, M.

Kudo, R.

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

Kuschnerov, M.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Leon-Saval, S. G.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

Li, G.

N. Bai and G. Li, “Adaptive frequency-domain equalization for mode-division multiplexed transmission,” IEEE Photon. Technol. Lett., vol. 24, no. 21, pp. 1918–1921, 2012.

Li, L.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Lingle, R.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Lingle, R. J.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

Lopez, J. E. A.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

Luis, R. S.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

Maeda, K.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

Masuda, H.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

Mateo, E.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Matsuo, S.

H. Ono, T. Hosokawa, K. Ichii, S. Matsuo, and Yamada,“Improvement of differential modal gain in few-mode fibre amplifier by employing ringcore erbium-doped fibre,” Electron. Lett., vol. 51, no. 2, pp. 172–173, 2015.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

Mendinueta, J.-M. D.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

Miyamoto, Y.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

Mizuno, T.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

Montoliu, M.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Mori, T.

Morioka, T.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

T. Morioka, “New generation optical infrastructure technologies: ‘EXAT initiative' towards 2020 and beyond,” presented at the OptoElectronics Communications Conf., Hong Kong, 2009, Paper FT4.

Morita, I.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

Mukasa, K.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Nagatani, M.

Nakagawa, T.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

Nakanishi, T.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

Oguma, M.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

Ono, H.

H. Ono, T. Hosokawa, K. Ichii, S. Matsuo, and Yamada,“Improvement of differential modal gain in few-mode fibre amplifier by employing ringcore erbium-doped fibre,” Electron. Lett., vol. 51, no. 2, pp. 172–173, 2015.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

Poletti, F.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Pupalaikis, P.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Puttnam, B. J.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Randel, S.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Raybon, G.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

Richardson, D. J.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Ryf, R.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Sahu, J. K.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Saito, T.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

Saitoh, K.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

Sakaguchi, J.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Sakamoto, T.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

Salazar-Gil, J. R.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

Sano, A.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

Sasaki, Y.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

Scott, R. P.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

Shikama, K.

Shubochkin, R.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

Shynk, J. J.

J. J. Shynk, “Frequency-domain and multirate adaptive filtering,” IEEE Signal Process. Mag., vol. 9, no. 1, pp. 14–37, 1992.

Sleiffer, V. A. J. M.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Souma, D.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

Stojanovic, N.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Sugizaki, R.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Sun, Y.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Sureka, A.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Suzuki,

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

Suzuki, M.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

Tadakuma, M.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

Takahata, T.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

Takara, H.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

Takatori, Y.

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

Takenaga, K.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

A. Sano, H. Takara, T. Kobayashi, H. Kawakami, H. Kishikawa, T. Nakagawa, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, M. Nagatani, T. Mori, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, M. Yamdada, H. Masuda, and T. Morioka, “409-Tb/s + 409- Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction interleaving,” Opt. Express, vol. 21, no. 14, pp. 16777–16783, 2013.

Takeshima, K.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

Tanaka, A.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Tkach, R. W.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

Tsuchida, Y.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

Tsuritani, T.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

van Uden, R. G. H.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Veljanovski, V.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Waardt, de H.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Wada, M.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

Wada, N.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Wakayama, Y.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

Watanabe, K.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

Watanabe, M.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

Watanabe, T.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

Winfield, R.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

Winzer, P. J.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

Wood, W.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Xiao, Z.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Xie, C.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Xiong, Q.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Xu, X.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

Yamada, M.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

Yamdada, M.

Yano, Y.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

Yoo, S. J. B

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

Yu, F.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

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Other (15)

K. Ishihara, R. Kudo, T. Kobayashi, A. Sano, Y. Takatori, T. Nakagawa, and Y. Miyamoto, “Frequency-domain equalization for coherent optical transmission systems,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2011, Paper OWW4.

D. Chang, F. Yu, Z. Xiao, N. Stojanovic, F. N. Hauske, Y. Cai, C. Xie, L. Li, X. Xu, and Q. Xiong, “LDPC convolutional codes using layered decoding algorithm for high speed coherent optical transmission,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2012, Paper OW1H.4.

T. Morioka, “New generation optical infrastructure technologies: ‘EXAT initiative' towards 2020 and beyond,” presented at the OptoElectronics Communications Conf., Hong Kong, 2009, Paper FT4.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19 $\times$ 100 $\times$ 172-Gb/s SDM-WDM-PDM-QPSK signals at 305Tb/s,” presented at the Nat. Fiber Optic Engineers Conf.Los Angeles, CA, USA, Mar. 2012, Paper PDP5C-1.

K. Igarashi, T. Tsuritani, I. Morita, Y. Tsuchida, K. Maeda, M. Tadakuma, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and Suzuki, M , “1.03- Exabit/s km super-Nyquist-WDM transmission over 7,326-km sevencore fiber,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.3.

R. Ryf, S. Randel, N. K. Fontaine, M. Montoliu, E. Burrows, S. Corteselli, S. Chandrasekhar, A. H. Gnauck, C. Xie, R. J. Essiambre, P. J. Winzer, R. Delbue, P. Pupalaikis, A. Sureka, Y. Sun, L. Grüner-Nielsen, R. V. Jensen, and R. Lingle, “32-bit/s/Hz spectral efficiency WDM transmission over 177-km few-mode fiber,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-1.

V. A. J. M. Sleiffer, Y. Jung, V. Veljanovski, R. G. H. van Uden, M. Kuschnerov, Q. Kang, L. Grüner-Nielsen, Y. Sun, D. J. Richardson, S. Alam, F. Poletti, J. K. Sahu, A. Dhar, H. Chen, B. Inan, A. M. J. Koonen, B. Corbett, R. Winfield, A. D. Ellis, and de H. Waardt, “73.7 Tb/s (96 $\times$ 3 $\times$ 256-Gb/s) mode-division-multiplexed DP-16QAM transmission with inline MM-EDFA,” presented at the Eur. Conf. Exhib. Optical Communication, Amsterdam, The Netherlands, 2012, Paper Th.3.C.4.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core $\times$ 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper Th5B-2.

R. Ryf, N. K. Fontaine, M. Montoliu, S. Randel, B. Ercan, H. Chen, S. Chandrasekhar, A. H. Gnauck, S. G. Leon-Saval, J. Bland-Hawthorn, J. R. Salazar-Gil, Y. Sun, and R. Lingle, “Photonic-lantern-based mode multiplexers for few-mode-fiber transmission,” presented at the Optical Fiber Communication Conf., San Francisco, CA, USA, 2014, Paper W4J- 2.

E. Ip, M. J. Huang, K. Bennett, Y. K. Huang, A. Tanaka, A. Korolev, K. Koreshkov, W. Wood, E. Mateo, J. Hu, and Y. Yano, “146$\lambda \times 6 \times$ 19-Gbaud wavelength-and mode-division multiplexed transmission over 10 $\times$ 50-km spans of few-mode fiber with a gain-equalized few-mode EDFA,” presented at the Optical Fiber Communication Conf., Anaheim, CA, USA, 2013, Paper PDP5A-2.

R. Ryf, N. K. Fontaine, B. Guan, B. Huang, M. Esmaeelpour, S. Randel, A. H. Gnauck, S. Chandrasekhar, A. Adamiecki, G. Raybon, R. W. Tkach, R. Shubochkin, Y. Sun, and R. Lingle, “305-km combined wavelength and mode-multiplexed transmission over conventional graded-index multimode fibre,” presented at the Eur. Conf. Exhib. Optical Communication, Cannes, France, 2014, Paper PD3.5.

J. Sakaguchi, W. Klaus, J.-M. D. Mendinueta, B. J. Puttnam, R. S. Luis, Y. Awaji, N. Wada, T. Hayashi, T. Nakanishi, T. Watanabe, Y. Kokubun, T. Takahata, and T. Kobayashi, “Realizing a 36-core, 3-mode fiber with 108 spatial channels,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-2.

K. Igarashi, D. Souma, Y. Wakayama, K. Takeshima, Y. Kawaguchi, T. Tsuritani, I. Morita, and M. Suzuki, “114 space-division-multiplexed transmission over 9.8-km weakly-coupled-6-mode uncoupled-19-core fibers,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-4.

N. K. Fontaine, R. Ryf, H. Chen, A. V. Benitez, J. E. A. Lopez, R. A. Correa, B. Guan, B. Ercan, R. P. Scott, S. J. B Yoo, L. Grüner-Nielsen, Y. Sun, and R. J. Lingle, “30 $\times$ 30 mimo transmission over 15 spatial modes,” presented at the Optical Fiber Communication Conf., Los Angeles, CA, USA, 2015, Paper Th5C-1.

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2 $\times$ 344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” presented at the Eur. Conf. Exhib. Optical Communication, London, U.K., 2013, Paper PD3.E.4.

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