Abstract

The performance of unrepeatered transmission of a seven Nyquist-spaced 10 GBd PDM-16QAM superchannel using full signal band coherent detection and multi-channel digital back propagation (MC-DBP) to mitigate nonlinear effects is analysed. For the first time in unrepeatered transmission, the performance of two amplification systems is investigated and directly compared in terms of achievable information rates (AIRs): 1) erbium-doped fibre amplifier (EDFA) and 2) second-order bidirectional Raman pumped amplification. The experiment is performed over different span lengths, demonstrating that, for an AIR of 6.8 bit/s/Hz, the Raman system enables an increase of 93 km (36 %) in span length. Further, at these distances, MC-DBP gives an improvement in AIR of 1 bit/s/Hz (to 7.8 bit/s/Hz) for both amplification schemes. The theoretical AIR gains for Raman and MC-DBP are shown to be preserved when considering low-density parity-check codes. Additionally, MC-DBP algorithms for both amplification schemes are compared in terms of performance and computational complexity. It is shown that to achieve the maximum MC-DBP gain, the Raman system requires approximately four times the computational complexity due to the distributed impact of fibre nonlinearity.

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  4. H. Bissessur, P. Bousselet, D. Mongardien, G. Boissy, and J. Lestrade, “4 × 100Gb/s unrepeatered transmission over 462km using coherent PDM-QPSK format and real-time processing,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.3.
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2015 (5)

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

A. Alvarado and E. Agrell, “Four-dimensional coded modulation with bit-wise decoders for future optical communications,” J. Lightw. Technol. vol. 33, no. 10, pp. 1993–2003, 2015.

A. Alvarado, E. Agrell, D. Lavery, R. Maher, and P. Bayvel, “Replacing the soft FEC limit paradigm in the design of optical communication systems,” J. Lightw. Technol., vol. 33, no. 20, pp. 4338–4352, 2015.

P. Rosa, M. Tan, S. T. Le, I. D. Phillips, J. D Ania-Castañón, S. Sygletos, and P. Harper, “Unrepeatered DP-QPSK transmission over 352.8 km SMF using random DFB fibre laser amplification,” IEEE Photon. Technol. Lett., vol. 27, no. 11, pp. 1189–1192, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

2014 (3)

L. M. Zhang and F. R. Kschischang, “Staircase codes with 6% to 33% overhead,” J. Lightw. Technol., vol. 32, no. 10, pp. 1999–2001, 2014.

J. D. DownieJ. Hurley, I. Roudas, D. Pikula, and J. A. Garza-Alanis, “Unrepeatered 256 Gb/s PM-16QAM transmission over up to 304 km with simple system configurations,” Opt. Exp., vol. 22, no. 9, pp. 10256–10261, 2014.

T. Fehenberger, A. Alvarado, P. Bayvel, and N. Hanik, “On achievable rates for long-haul fibre-optic communications,” Opt. Exp., vol. 23, no. 8, pp. 9183–9191, 2014.

2013 (1)

M. Secondini, E. Forestieri, and G. Prati, “Achievable information rate in nonlinear WDM fiber-optic systems with arbitrary modulation formats and dispersion maps,” J. Lightw. Technol., vol. 31, no. 23, pp. 3839–3852, 2013.

2012 (1)

P. B. Smith, A. Hunt, F. R. Kschischang, and J. Lodge, “Staircase codes: FEC for 100Gb/s OTN,” J. Lightw. Technol., vol. 30, no. 1, pp. 110–117, 2012.

2009 (1)

I. Fatadinet al., “Blind equalization and carrier phase recovery in a 16-QAM optical coherent system,” J. Lightw. Technol., vol. 27, no. 15, pp. 3042–3049, 2009.

2004 (1)

J. D. Ania-Castanon, “Quasi-lossless transmission using second-order Raman amplification and fibre Bragg gratings,” Opt. Exp., vol. 12, no. 19, pp. 4372–4377, 2004.

Agrell, E.

A. Alvarado and E. Agrell, “Four-dimensional coded modulation with bit-wise decoders for future optical communications,” J. Lightw. Technol. vol. 33, no. 10, pp. 1993–2003, 2015.

A. Alvarado, E. Agrell, D. Lavery, R. Maher, and P. Bayvel, “Replacing the soft FEC limit paradigm in the design of optical communication systems,” J. Lightw. Technol., vol. 33, no. 20, pp. 4338–4352, 2015.

G. Liga, A. Alvarado, E. Agrell, M. Secondini, R. I. Killey, and P. Bayvel, “Optimum detection in presence of nonlinear distortions with memory,” in Proc. European Conf. Optical Communication, Valencia, Spain, Sep./Oct. 2015, Paper P.4.13.

Alvarado, A.

A. Alvarado and E. Agrell, “Four-dimensional coded modulation with bit-wise decoders for future optical communications,” J. Lightw. Technol. vol. 33, no. 10, pp. 1993–2003, 2015.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

A. Alvarado, E. Agrell, D. Lavery, R. Maher, and P. Bayvel, “Replacing the soft FEC limit paradigm in the design of optical communication systems,” J. Lightw. Technol., vol. 33, no. 20, pp. 4338–4352, 2015.

T. Fehenberger, A. Alvarado, P. Bayvel, and N. Hanik, “On achievable rates for long-haul fibre-optic communications,” Opt. Exp., vol. 23, no. 8, pp. 9183–9191, 2014.

G. Liga, A. Alvarado, E. Agrell, M. Secondini, R. I. Killey, and P. Bayvel, “Optimum detection in presence of nonlinear distortions with memory,” in Proc. European Conf. Optical Communication, Valencia, Spain, Sep./Oct. 2015, Paper P.4.13.

L. Szczecinski and A. Alvarado, Bit-Interleaved Coded Modulation: Fundamentals, Analysis and Design. Chichester, UK: John Wiley & Sons, 2015.

Amma, Y.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Ania-Castanon, J. D.

J. D. Ania-Castanon, “Quasi-lossless transmission using second-order Raman amplification and fibre Bragg gratings,” Opt. Exp., vol. 12, no. 19, pp. 4372–4377, 2004.

Ania-Castañón, J. D

P. Rosa, M. Tan, S. T. Le, I. D. Phillips, J. D Ania-Castañón, S. Sygletos, and P. Harper, “Unrepeatered DP-QPSK transmission over 352.8 km SMF using random DFB fibre laser amplification,” IEEE Photon. Technol. Lett., vol. 27, no. 11, pp. 1189–1192, 2015.

Ania-Castañón, J. D.

Asakawa, S.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Bastide, C.

H. Bissessur, C. Bastide, S. Dubost, S. Etienne, and D. Mongardien., “8 Tb/s unrepeatered transmission of real-time processed 200 Gb/s PDM 16-QAM over 363 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.3.

D. Mongardien, C. Bastide, B. Lavigne, S. Etienne, and H. Bissessur, “401 km unrepeatered transmission of dual-carrier 400 Gb/s PDM-16QAM mixed with 100 Gb/s channels,” in Proc. 39th European Conf. Optical Communication, London, U.K.,Sep. 2013, Paper Tu.1.D.2.

Bayvel, P.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

A. Alvarado, E. Agrell, D. Lavery, R. Maher, and P. Bayvel, “Replacing the soft FEC limit paradigm in the design of optical communication systems,” J. Lightw. Technol., vol. 33, no. 20, pp. 4338–4352, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

T. Fehenberger, A. Alvarado, P. Bayvel, and N. Hanik, “On achievable rates for long-haul fibre-optic communications,” Opt. Exp., vol. 23, no. 8, pp. 9183–9191, 2014.

G. Liga, A. Alvarado, E. Agrell, M. Secondini, R. I. Killey, and P. Bayvel, “Optimum detection in presence of nonlinear distortions with memory,” in Proc. European Conf. Optical Communication, Valencia, Spain, Sep./Oct. 2015, Paper P.4.13.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Bertran-Pardo, O.

D. Mongardien, P. Bousselet, O. Bertran-Pardo, P. Tran, and H. Bissessur, “2.6Tb/s (26 × 100Gb/s) unrepeatered transmission over 401km using PDM-QPSK with a coherent receiver,” in Proc. 35th European Conf. Optical Communication, Vienna, Austria, 2009, Paper 6.4.3.

Bickham, S.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

Bissessur, H.

H. Bissessur, P. Bousselet, D. Mongardien, G. Boissy, and J. Lestrade, “4 × 100Gb/s unrepeatered transmission over 462km using coherent PDM-QPSK format and real-time processing,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.3.

D. Mongardien, P. Bousselet, O. Bertran-Pardo, P. Tran, and H. Bissessur, “2.6Tb/s (26 × 100Gb/s) unrepeatered transmission over 401km using PDM-QPSK with a coherent receiver,” in Proc. 35th European Conf. Optical Communication, Vienna, Austria, 2009, Paper 6.4.3.

H. Bissessur, C. Bastide, S. Dubost, S. Etienne, and D. Mongardien., “8 Tb/s unrepeatered transmission of real-time processed 200 Gb/s PDM 16-QAM over 363 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.3.

D. Mongardien, C. Bastide, B. Lavigne, S. Etienne, and H. Bissessur, “401 km unrepeatered transmission of dual-carrier 400 Gb/s PDM-16QAM mixed with 100 Gb/s channels,” in Proc. 39th European Conf. Optical Communication, London, U.K.,Sep. 2013, Paper Tu.1.D.2.

Boissy, G.

H. Bissessur, P. Bousselet, D. Mongardien, G. Boissy, and J. Lestrade, “4 × 100Gb/s unrepeatered transmission over 462km using coherent PDM-QPSK format and real-time processing,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.3.

Bousselet, P.

D. Mongardien, P. Bousselet, O. Bertran-Pardo, P. Tran, and H. Bissessur, “2.6Tb/s (26 × 100Gb/s) unrepeatered transmission over 401km using PDM-QPSK with a coherent receiver,” in Proc. 35th European Conf. Optical Communication, Vienna, Austria, 2009, Paper 6.4.3.

H. Bissessur, P. Bousselet, D. Mongardien, G. Boissy, and J. Lestrade, “4 × 100Gb/s unrepeatered transmission over 462km using coherent PDM-QPSK format and real-time processing,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.3.

Brindel, P.

A. Ghazisaeidi, L. Schmalen, I. F de Jauregui, P Tran, C. Simonneau, P. Brindel, G. Charlet, “52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC,” in Proc. European Conf. Optical Communication,Cannes, France, 2009, Postdeadline paper.

Cartledge, J.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

Chang, D.

D. Chang, W. Pelouch, and J. McLaughlin, “8 x 120 Gb/s unrepeatered transmission over 444 km (76.6 dB) using distributed Raman amplification and ROPA without discrete amplification,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.2.

D. Chang, H. Pedro , P. Perrier, H. Fevrier, S. Ten, C. Towery, I. Davis, S. Makovejs, “150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fibre,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.4.

Charlet, G.

A. Ghazisaeidi, L. Schmalen, I. F de Jauregui, P Tran, C. Simonneau, P. Brindel, G. Charlet, “52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC,” in Proc. European Conf. Optical Communication,Cannes, France, 2009, Postdeadline paper.

Davis, I.

D. Chang, H. Pedro , P. Perrier, H. Fevrier, S. Ten, C. Towery, I. Davis, S. Makovejs, “150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fibre,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.4.

de Jauregui, I. F

A. Ghazisaeidi, L. Schmalen, I. F de Jauregui, P Tran, C. Simonneau, P. Brindel, G. Charlet, “52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC,” in Proc. European Conf. Optical Communication,Cannes, France, 2009, Postdeadline paper.

Doil Chang, P.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

Downie, J. D.

J. D. DownieJ. Hurley, I. Roudas, D. Pikula, and J. A. Garza-Alanis, “Unrepeatered 256 Gb/s PM-16QAM transmission over up to 304 km with simple system configurations,” Opt. Exp., vol. 22, no. 9, pp. 10256–10261, 2014.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

Dubost, S.

H. Bissessur, C. Bastide, S. Dubost, S. Etienne, and D. Mongardien., “8 Tb/s unrepeatered transmission of real-time processed 200 Gb/s PDM 16-QAM over 363 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.3.

Etienne, S.

H. Bissessur, C. Bastide, S. Dubost, S. Etienne, and D. Mongardien., “8 Tb/s unrepeatered transmission of real-time processed 200 Gb/s PDM 16-QAM over 363 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.3.

D. Mongardien, C. Bastide, B. Lavigne, S. Etienne, and H. Bissessur, “401 km unrepeatered transmission of dual-carrier 400 Gb/s PDM-16QAM mixed with 100 Gb/s channels,” in Proc. 39th European Conf. Optical Communication, London, U.K.,Sep. 2013, Paper Tu.1.D.2.

Fatadin, I.

I. Fatadinet al., “Blind equalization and carrier phase recovery in a 16-QAM optical coherent system,” J. Lightw. Technol., vol. 27, no. 15, pp. 3042–3049, 2009.

Fehenberger, T.

T. Fehenberger, A. Alvarado, P. Bayvel, and N. Hanik, “On achievable rates for long-haul fibre-optic communications,” Opt. Exp., vol. 23, no. 8, pp. 9183–9191, 2014.

Fevrier, H.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

D. Chang, H. Pedro , P. Perrier, H. Fevrier, S. Ten, C. Towery, I. Davis, S. Makovejs, “150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fibre,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.4.

Fontaine, K. N.

K. N. Fontaineet al., “Fiber nonlinearity compensation by digital backpropagation of an entire 1.2-Tb/s superchannel using a full-field spectrally-sliced receiver,” in Proc. 39th European Conf. Optical Communication, London, U.K., Sep. 2013, Paper Mo.3.D.5.

Forestieri, E.

M. Secondini, E. Forestieri, and G. Prati, “Achievable information rate in nonlinear WDM fiber-optic systems with arbitrary modulation formats and dispersion maps,” J. Lightw. Technol., vol. 31, no. 23, pp. 3839–3852, 2013.

Galdino, L.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Garza-Alanis, J. A.

J. D. DownieJ. Hurley, I. Roudas, D. Pikula, and J. A. Garza-Alanis, “Unrepeatered 256 Gb/s PM-16QAM transmission over up to 304 km with simple system configurations,” Opt. Exp., vol. 22, no. 9, pp. 10256–10261, 2014.

Ghazisaeidi, A.

A. Ghazisaeidi, L. Schmalen, I. F de Jauregui, P Tran, C. Simonneau, P. Brindel, G. Charlet, “52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC,” in Proc. European Conf. Optical Communication,Cannes, France, 2009, Postdeadline paper.

Hanik, N.

T. Fehenberger, A. Alvarado, P. Bayvel, and N. Hanik, “On achievable rates for long-haul fibre-optic communications,” Opt. Exp., vol. 23, no. 8, pp. 9183–9191, 2014.

Harper, P.

P. Rosa, M. Tan, S. T. Le, I. D. Phillips, J. D Ania-Castañón, S. Sygletos, and P. Harper, “Unrepeatered DP-QPSK transmission over 352.8 km SMF using random DFB fibre laser amplification,” IEEE Photon. Technol. Lett., vol. 27, no. 11, pp. 1189–1192, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

M. Tan, P. Rosa, I. Phillips, and P. Harper, “Extended reach of 116 Gb/s DP-QPSK transmission using random DFB fibre Laser based Raman amplification and bidirectional second-order pumping,” in Proc. Optical Fiber Communication Conf., Los Angeles, CA, USA,Mar. 2015, Paper W4E.1.

Hirakawa, K.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Hunt, A.

P. B. Smith, A. Hunt, F. R. Kschischang, and J. Lodge, “Staircase codes: FEC for 100Gb/s OTN,” J. Lightw. Technol., vol. 30, no. 1, pp. 110–117, 2012.

Hurley, J.

J. D. DownieJ. Hurley, I. Roudas, D. Pikula, and J. A. Garza-Alanis, “Unrepeatered 256 Gb/s PM-16QAM transmission over up to 304 km with simple system configurations,” Opt. Exp., vol. 22, no. 9, pp. 10256–10261, 2014.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

Kawakami, H.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Killey, R. I.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

G. Liga, A. Alvarado, E. Agrell, M. Secondini, R. I. Killey, and P. Bayvel, “Optimum detection in presence of nonlinear distortions with memory,” in Proc. European Conf. Optical Communication, Valencia, Spain, Sep./Oct. 2015, Paper P.4.13.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Kitamura, K.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Kobyakov, A.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

Kschischang, F. R.

L. M. Zhang and F. R. Kschischang, “Staircase codes with 6% to 33% overhead,” J. Lightw. Technol., vol. 32, no. 10, pp. 1999–2001, 2014.

P. B. Smith, A. Hunt, F. R. Kschischang, and J. Lodge, “Staircase codes: FEC for 100Gb/s OTN,” J. Lightw. Technol., vol. 30, no. 1, pp. 110–117, 2012.

Lavery, D.

A. Alvarado, E. Agrell, D. Lavery, R. Maher, and P. Bayvel, “Replacing the soft FEC limit paradigm in the design of optical communication systems,” J. Lightw. Technol., vol. 33, no. 20, pp. 4338–4352, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Lavigne, B.

D. Mongardien, C. Bastide, B. Lavigne, S. Etienne, and H. Bissessur, “401 km unrepeatered transmission of dual-carrier 400 Gb/s PDM-16QAM mixed with 100 Gb/s channels,” in Proc. 39th European Conf. Optical Communication, London, U.K.,Sep. 2013, Paper Tu.1.D.2.

Le, S. T.

P. Rosa, M. Tan, S. T. Le, I. D. Phillips, J. D Ania-Castañón, S. Sygletos, and P. Harper, “Unrepeatered DP-QPSK transmission over 352.8 km SMF using random DFB fibre laser amplification,” IEEE Photon. Technol. Lett., vol. 27, no. 11, pp. 1189–1192, 2015.

Lestrade, J.

H. Bissessur, P. Bousselet, D. Mongardien, G. Boissy, and J. Lestrade, “4 × 100Gb/s unrepeatered transmission over 462km using coherent PDM-QPSK format and real-time processing,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.3.

Liga, G.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

G. Liga, A. Alvarado, E. Agrell, M. Secondini, R. I. Killey, and P. Bayvel, “Optimum detection in presence of nonlinear distortions with memory,” in Proc. European Conf. Optical Communication, Valencia, Spain, Sep./Oct. 2015, Paper P.4.13.

Lodge, J.

P. B. Smith, A. Hunt, F. R. Kschischang, and J. Lodge, “Staircase codes: FEC for 100Gb/s OTN,” J. Lightw. Technol., vol. 30, no. 1, pp. 110–117, 2012.

Maher, R.

A. Alvarado, E. Agrell, D. Lavery, R. Maher, and P. Bayvel, “Replacing the soft FEC limit paradigm in the design of optical communication systems,” J. Lightw. Technol., vol. 33, no. 20, pp. 4338–4352, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Makovejs, S.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

D. Chang, H. Pedro , P. Perrier, H. Fevrier, S. Ten, C. Towery, I. Davis, S. Makovejs, “150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fibre,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.4.

Masuda, H.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Matsuo, S.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

McLaughlin, J.

D. Chang, W. Pelouch, and J. McLaughlin, “8 x 120 Gb/s unrepeatered transmission over 444 km (76.6 dB) using distributed Raman amplification and ROPA without discrete amplification,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.2.

Mills, G.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

Mishra, S.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

Miyamoto, Yl

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Mizuno, T.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Mongardien, D.

H. Bissessur, C. Bastide, S. Dubost, S. Etienne, and D. Mongardien., “8 Tb/s unrepeatered transmission of real-time processed 200 Gb/s PDM 16-QAM over 363 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.3.

H. Bissessur, P. Bousselet, D. Mongardien, G. Boissy, and J. Lestrade, “4 × 100Gb/s unrepeatered transmission over 462km using coherent PDM-QPSK format and real-time processing,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.3.

D. Mongardien, P. Bousselet, O. Bertran-Pardo, P. Tran, and H. Bissessur, “2.6Tb/s (26 × 100Gb/s) unrepeatered transmission over 401km using PDM-QPSK with a coherent receiver,” in Proc. 35th European Conf. Optical Communication, Vienna, Austria, 2009, Paper 6.4.3.

D. Mongardien, C. Bastide, B. Lavigne, S. Etienne, and H. Bissessur, “401 km unrepeatered transmission of dual-carrier 400 Gb/s PDM-16QAM mixed with 100 Gb/s channels,” in Proc. 39th European Conf. Optical Communication, London, U.K.,Sep. 2013, Paper Tu.1.D.2.

Ono, H.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Pelouch, W.

D. Chang, W. Pelouch, and J. McLaughlin, “8 x 120 Gb/s unrepeatered transmission over 444 km (76.6 dB) using distributed Raman amplification and ROPA without discrete amplification,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.2.

Perrier, P.

D. Chang, H. Pedro , P. Perrier, H. Fevrier, S. Ten, C. Towery, I. Davis, S. Makovejs, “150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fibre,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.4.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

Peterson, D. L.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

Phillips, I.

M. Tan, P. Rosa, I. Phillips, and P. Harper, “Extended reach of 116 Gb/s DP-QPSK transmission using random DFB fibre Laser based Raman amplification and bidirectional second-order pumping,” in Proc. Optical Fiber Communication Conf., Los Angeles, CA, USA,Mar. 2015, Paper W4E.1.

Phillips, I. D.

P. Rosa, M. Tan, S. T. Le, I. D. Phillips, J. D Ania-Castañón, S. Sygletos, and P. Harper, “Unrepeatered DP-QPSK transmission over 352.8 km SMF using random DFB fibre laser amplification,” IEEE Photon. Technol. Lett., vol. 27, no. 11, pp. 1189–1192, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

Pikula, D.

J. D. DownieJ. Hurley, I. Roudas, D. Pikula, and J. A. Garza-Alanis, “Unrepeatered 256 Gb/s PM-16QAM transmission over up to 304 km with simple system configurations,” Opt. Exp., vol. 22, no. 9, pp. 10256–10261, 2014.

Prati, G.

M. Secondini, E. Forestieri, and G. Prati, “Achievable information rate in nonlinear WDM fiber-optic systems with arbitrary modulation formats and dispersion maps,” J. Lightw. Technol., vol. 31, no. 23, pp. 3839–3852, 2013.

Rosa, P.

P. Rosa, M. Tan, S. T. Le, I. D. Phillips, J. D Ania-Castañón, S. Sygletos, and P. Harper, “Unrepeatered DP-QPSK transmission over 352.8 km SMF using random DFB fibre laser amplification,” IEEE Photon. Technol. Lett., vol. 27, no. 11, pp. 1189–1192, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

M. Tan, P. Rosa, I. Phillips, and P. Harper, “Extended reach of 116 Gb/s DP-QPSK transmission using random DFB fibre Laser based Raman amplification and bidirectional second-order pumping,” in Proc. Optical Fiber Communication Conf., Los Angeles, CA, USA,Mar. 2015, Paper W4E.1.

Roudas, I.

J. D. DownieJ. Hurley, I. Roudas, D. Pikula, and J. A. Garza-Alanis, “Unrepeatered 256 Gb/s PM-16QAM transmission over up to 304 km with simple system configurations,” Opt. Exp., vol. 22, no. 9, pp. 10256–10261, 2014.

Sato, M.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Savory, S. J.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Schmalen, L.

A. Ghazisaeidi, L. Schmalen, I. F de Jauregui, P Tran, C. Simonneau, P. Brindel, G. Charlet, “52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC,” in Proc. European Conf. Optical Communication,Cannes, France, 2009, Postdeadline paper.

Secondini, M.

M. Secondini, E. Forestieri, and G. Prati, “Achievable information rate in nonlinear WDM fiber-optic systems with arbitrary modulation formats and dispersion maps,” J. Lightw. Technol., vol. 31, no. 23, pp. 3839–3852, 2013.

G. Liga, A. Alvarado, E. Agrell, M. Secondini, R. I. Killey, and P. Bayvel, “Optimum detection in presence of nonlinear distortions with memory,” in Proc. European Conf. Optical Communication, Valencia, Spain, Sep./Oct. 2015, Paper P.4.13.

Shi, K.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

Simonneau, C.

A. Ghazisaeidi, L. Schmalen, I. F de Jauregui, P Tran, C. Simonneau, P. Brindel, G. Charlet, “52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC,” in Proc. European Conf. Optical Communication,Cannes, France, 2009, Postdeadline paper.

Smith, P. B.

P. B. Smith, A. Hunt, F. R. Kschischang, and J. Lodge, “Staircase codes: FEC for 100Gb/s OTN,” J. Lightw. Technol., vol. 30, no. 1, pp. 110–117, 2012.

Sygletos, S.

P. Rosa, M. Tan, S. T. Le, I. D. Phillips, J. D Ania-Castañón, S. Sygletos, and P. Harper, “Unrepeatered DP-QPSK transmission over 352.8 km SMF using random DFB fibre laser amplification,” IEEE Photon. Technol. Lett., vol. 27, no. 11, pp. 1189–1192, 2015.

Szczecinski, L.

L. Szczecinski and A. Alvarado, Bit-Interleaved Coded Modulation: Fundamentals, Analysis and Design. Chichester, UK: John Wiley & Sons, 2015.

Takara, H.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Tan, M.

P. Rosa, M. Tan, S. T. Le, I. D. Phillips, J. D Ania-Castañón, S. Sygletos, and P. Harper, “Unrepeatered DP-QPSK transmission over 352.8 km SMF using random DFB fibre laser amplification,” IEEE Photon. Technol. Lett., vol. 27, no. 11, pp. 1189–1192, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

M. Tan, P. Rosa, I. Phillips, and P. Harper, “Extended reach of 116 Gb/s DP-QPSK transmission using random DFB fibre Laser based Raman amplification and bidirectional second-order pumping,” in Proc. Optical Fiber Communication Conf., Los Angeles, CA, USA,Mar. 2015, Paper W4E.1.

Ten, S.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

D. Chang, H. Pedro , P. Perrier, H. Fevrier, S. Ten, C. Towery, I. Davis, S. Makovejs, “150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fibre,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.4.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

Thomsen, B. C.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

L. Galdino, M. Tan, D. Lavery, P. Rosa, R. Maher, I. D. Phillips, J. D. Ania-Castañón, P. Harper, R. I. Killey, B. C. Thomsen, S. Makovejs, and P. Bayvel, “Unrepeatered Nyquist PDM-16QAM transmission over 364 km using Raman amplification and multi-channel DBP,” Opt. Lett., vol. 40, no. 13, pp. 3025–3028, 2015.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Towery, C.

D. Chang, H. Pedro , P. Perrier, H. Fevrier, S. Ten, C. Towery, I. Davis, S. Makovejs, “150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fibre,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.4.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

Tran, P

A. Ghazisaeidi, L. Schmalen, I. F de Jauregui, P Tran, C. Simonneau, P. Brindel, G. Charlet, “52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC,” in Proc. European Conf. Optical Communication,Cannes, France, 2009, Postdeadline paper.

Tran, P.

D. Mongardien, P. Bousselet, O. Bertran-Pardo, P. Tran, and H. Bissessur, “2.6Tb/s (26 × 100Gb/s) unrepeatered transmission over 401km using PDM-QPSK with a coherent receiver,” in Proc. 35th European Conf. Optical Communication, Vienna, Austria, 2009, Paper 6.4.3.

Tsujikawa, K.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Wellbrock, G. A.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

Xia, T. J.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

Xu, T.

R. Maher, T. Xu, L. Galdino, M. Sato, A. Alvarado, K. Shi, S. J. Savory, B. C. Thomsen, R. I. Killey, and P. Bayvel, “Spectrally shaped DP-16QAM super-channel transmission with multi-channel digital back propagation,” Sci. Rep, vol. 5, article 8214, 2015.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

Ymada, M.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

Zhang, L. M.

L. M. Zhang and F. R. Kschischang, “Staircase codes with 6% to 33% overhead,” J. Lightw. Technol., vol. 32, no. 10, pp. 1999–2001, 2014.

Zhu, X.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

IEEE Photon. Technol. Lett. (1)

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A. Alvarado, E. Agrell, D. Lavery, R. Maher, and P. Bayvel, “Replacing the soft FEC limit paradigm in the design of optical communication systems,” J. Lightw. Technol., vol. 33, no. 20, pp. 4338–4352, 2015.

A. Alvarado and E. Agrell, “Four-dimensional coded modulation with bit-wise decoders for future optical communications,” J. Lightw. Technol. vol. 33, no. 10, pp. 1993–2003, 2015.

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G. Liga, A. Alvarado, E. Agrell, M. Secondini, R. I. Killey, and P. Bayvel, “Optimum detection in presence of nonlinear distortions with memory,” in Proc. European Conf. Optical Communication, Valencia, Spain, Sep./Oct. 2015, Paper P.4.13.

K. N. Fontaineet al., “Fiber nonlinearity compensation by digital backpropagation of an entire 1.2-Tb/s superchannel using a full-field spectrally-sliced receiver,” in Proc. 39th European Conf. Optical Communication, London, U.K., Sep. 2013, Paper Mo.3.D.5.

M. Tan, P. Rosa, I. Phillips, and P. Harper, “Extended reach of 116 Gb/s DP-QPSK transmission using random DFB fibre Laser based Raman amplification and bidirectional second-order pumping,” in Proc. Optical Fiber Communication Conf., Los Angeles, CA, USA,Mar. 2015, Paper W4E.1.

A. Ghazisaeidi, L. Schmalen, I. F de Jauregui, P Tran, C. Simonneau, P. Brindel, G. Charlet, “52.9 Tb/s transmission over transoceanic distances using adaptive multi-rate FEC,” in Proc. European Conf. Optical Communication,Cannes, France, 2009, Postdeadline paper.

D. Mongardien, P. Bousselet, O. Bertran-Pardo, P. Tran, and H. Bissessur, “2.6Tb/s (26 × 100Gb/s) unrepeatered transmission over 401km using PDM-QPSK with a coherent receiver,” in Proc. 35th European Conf. Optical Communication, Vienna, Austria, 2009, Paper 6.4.3.

J. D. Downie, J. Hurley, J. Cartledge, S. Ten, S. Bickham, S. Mishra, X. Zhu, and A. Kobyakov, “40 × 112 Gb/s transmission over an unrepeatered 365 km effective area-managed span comprised of ultra-low loss optical fibre,” in Proc. 36th European Conf. Optical CommunicationTorino, Italy, 2010, Paper We.7.C.5.

D. Chang, W. Pelouch, and J. McLaughlin, “8 x 120 Gb/s unrepeatered transmission over 444 km (76.6 dB) using distributed Raman amplification and ROPA without discrete amplification,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.2.

H. Bissessur, P. Bousselet, D. Mongardien, G. Boissy, and J. Lestrade, “4 × 100Gb/s unrepeatered transmission over 462km using coherent PDM-QPSK format and real-time processing,” in Proc. 37th European Conf. Optical Communication, Geneva, Switzerland, 2011, Paper Tu.3.B.3.

T. J. Xia, D. L. Peterson, G. A. Wellbrock, P. Doil Chang, P. Perrier, H. Fevrier, S. Ten, C. Towery, and G. Mills, “557-km unrepeatered 100 G transmission with commercial Raman DWDM system, enhanced ROPA, and cabled large Aeff ultra-low loss fibre in OSP environment,” in Proc. Optical Fiber Communication Conf., San Francisco, CA, USA,Mar. 2014, Paper Th5A.7.

D. Chang, H. Pedro , P. Perrier, H. Fevrier, S. Ten, C. Towery, I. Davis, S. Makovejs, “150 × 120 Gb/s unrepeatered transmission over 333.6 km and 389.6 km (with ROPA) G.652 fibre,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.4.

D. Mongardien, C. Bastide, B. Lavigne, S. Etienne, and H. Bissessur, “401 km unrepeatered transmission of dual-carrier 400 Gb/s PDM-16QAM mixed with 100 Gb/s channels,” in Proc. 39th European Conf. Optical Communication, London, U.K.,Sep. 2013, Paper Tu.1.D.2.

H. Takara, T. Mizuno, H. Kawakami, Yl Miyamoto, H. Masuda, K. Kitamura, H. Ono, S. Asakawa, Y. Amma, K. Hirakawa, S. Matsuo, K. Tsujikawa, and M. Ymada, “120.7-Tb/s (7 SDM/180 WDM/95.8 Gb/s) MCF-ROPA unrepeatered transmission of PDM-32QAM channels over 204 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper PD.3.1.

L. Galdino, G. Liga, D. Lavery, R. Maher, T. Xu, M. Sato, R. I. Killey, S. J. Savory, B. C. Thomsen, and P. Bayvel, “Unrepeatered transmission over 253.4 km ultra low loss fibre achieving 6.95 (b/s)/Hz SE using EDFA-only pre-amplifier,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper P.5.2.

H. Bissessur, C. Bastide, S. Dubost, S. Etienne, and D. Mongardien., “8 Tb/s unrepeatered transmission of real-time processed 200 Gb/s PDM 16-QAM over 363 km,” in Proc. European Conf. Optical Communication, Cannes, France,Sep. 2014, Paper Tu.1.5.3.

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