Abstract

We describe a new multicore fiber (MCF) receptacle for space division multiplexing (SDM) based transceiver applications, in which we integrated a compact fiber-bundle type fan-in/fan-out device for directly connecting MCF to LDs and PDs. We design the length of the fan-out fibers taking their bending stress into account to achieve a configuration with a smaller footprint. With the proposed receptacle, we develop a 100 Gb/s SDM transmitter based on a four-channel, 1.3 μm membrane laser array on Si, in which spot-size convertor (SSC) using inverse taper InP and SiON waveguides is integrated. Since the core size of SiON waveguide is much smaller than that of MCF, we utilize different fibers with optimized modal fields at each connection point and introduce thermally-expanded-core (TEC) fusion splicing to realize a low-loss connection between them. We achieve a pluggable connection between the lasers and 125 μm-cladding 4-core MCF in an LC connector. The developed receptacle maintained satisfactory laser characteristics including sufficient output power and clear eye openings for directly modulated 28 Gb/s NRZ signals. We also achieve an error-free transmission at a bit-error rate of less than 10−12 with a 500-m MCF transmission link for all 4 channels with simultaneous 4-channel operation.

© 2018 IEEE

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  16. Y. Abe, K. Shikama, S. Yanagi, and T. Takahashi, “Physical-contact-type fan-out device for multicore fibre,” Electron. Lett., vol. 49, no. 11, pp. 711–712, 2013.
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  23. T. Sakamoto, T. Mori, M. Wada, T. Yamamoto, T. Matsui, K. Nakajima, and F. Yamamoto, “Experimental and numerical evaluation of inter-core differential mode delay characteristic of weakly-coupled multi-core fiber,” Opt. Express, vol. 22, no. 26, pp. 31966–31976, 2014.
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  32. T. Matsuiet al., “Design of 125 μm cladding multi-core fiber with full-band compatibility to conventional single-mode fiber,” presented at the Eur. Conf. Opt. Commun., Valencia, Spain, 2015, Paper We.1.4.5.
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2018 (1)

K. Shikama, Y. Abe, H. Ono, and A. Aratake, “Low-loss and low-mode-dependent-loss fan-in/fan-out device for 6-mode 19-core fiber,” IEEE J. Lightw Technol., vol. 36, no. 2, pp. 302–308,  2018.

2016 (2)

K. Shikama, Y. Abe, S. Yanagi, S. Asakawa, and T. Takahashi, “Multicore fiber connector with physical-contact connection,” IEICE Trans. Electron., vol. E99.C, no. 2, pp. 242–249, 2016.

H. Nishiet al., “Membrane distributed-reflector laser integrated with SiOx-based spot-size converter on si substrate,” Opt. Express, vol. 24, no. 16, pp. 18346–18352, 2016.

2015 (1)

Y. Abe, K. Shikama, H. Ono, S. Yanagi, and T. Takahashi, “Fan-in/fan-out device employing v-groove substrate for multicore fibre,” Electron. Lett., vol. 51, no. 17, pp. 1347–1348, 2015.

2014 (1)

2013 (1)

Y. Abe, K. Shikama, S. Yanagi, and T. Takahashi, “Physical-contact-type fan-out device for multicore fibre,” Electron. Lett., vol. 49, no. 11, pp. 711–712, 2013.

2012 (4)

W. Klauset al., “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett., vol. 24, no. 11, pp. 1902–1905,  2012.

C. Kachris and I. Tomkos, “A survey on optical Interconnects for data centers,” IEEE Commun. Surveys Tuts., vol. 14, no. 4, pp. 1021–1036,  2012.

T. Morioka, Y. Awaji, R. Ryf, P. Winzer, D. Richardson, and F. Poletti, “Enhancing optical communications with brand new fibers,” IEEE Comput. Mag. vol. 50, no. 2, pp. S31–S42,  2012.

B. G. Leeet al., “End-to-end multicore multimode fiber optic link operating up to 120 Gb/s,” IEEE J. Lightw. Technol., vol. 30, no. 6, pp. 886–892,  2012.

2011 (1)

C. R. Doerr and T. F. Taunay, “Silicon photonics core-, wavelength-, and polarization-diversity receiver,” IEEE Photon.Technol. Lett., vol. 23, no. 9, pp. 597–599,  2011.

2010 (1)

B. Zhu, T. F. Taunay, M. F. Yan, M. Fishteyn, G. Oulundsen, and D. Vaidya, “70-Gb/s multicore multimode fiber transmissions for optical data links,” IEEE Photon. Technol. Lett., vol. 22, no. 22, pp. 1647–1649,  2010.

2007 (1)

2002 (1)

T. Shoji, T. Tsuchizawa, T. Watanabe, K. Yamada, and H. Morita, " Low loss mode size converter from 0.3 μm square si wire waveguides to single mode fibres,” Electron. Lett., vol. 38, no. 2, pp. 1669–1670, 2002.

1997 (1)

M. Kobaysashi, S. Asakawa, R. Nagase, and S. Mitach, “A new physical contact connection method using the buckling force of optical fiber,” IEICE Trans. Electron., vol. E80.C, no. 2, pp. 334–339, 1997.

Abe, Y.

K. Shikama, Y. Abe, H. Ono, and A. Aratake, “Low-loss and low-mode-dependent-loss fan-in/fan-out device for 6-mode 19-core fiber,” IEEE J. Lightw Technol., vol. 36, no. 2, pp. 302–308,  2018.

K. Shikama, Y. Abe, S. Yanagi, S. Asakawa, and T. Takahashi, “Multicore fiber connector with physical-contact connection,” IEICE Trans. Electron., vol. E99.C, no. 2, pp. 242–249, 2016.

Y. Abe, K. Shikama, H. Ono, S. Yanagi, and T. Takahashi, “Fan-in/fan-out device employing v-groove substrate for multicore fibre,” Electron. Lett., vol. 51, no. 17, pp. 1347–1348, 2015.

Y. Abe, K. Shikama, S. Yanagi, and T. Takahashi, “Physical-contact-type fan-out device for multicore fibre,” Electron. Lett., vol. 49, no. 11, pp. 711–712, 2013.

K. Shikama, Y. Abe, S. Yanagi, and T. Takahashi, “Physical-contact conditions for multicore fiber optical connectors,” presented at the Opt. Fiber Commun. Conf. Exhib., Anaheim, CA, USA, 2013, Paper OM3I.1.

Aikawa, K.

T. Oda, K. Hirakawa, K. Ichii, S. Yamamoto, and K. Aikawa, “Thermally expanded core fiber with a 4-mm mode field diameter suitable for low-loss coupling with silicon photonic devices,” presented at the Opt. Fiber Commun. Conf. and Exhib., San Francisco, CA, USA, 2017, Paper Tu3K.5.

Aratake, A.

K. Shikama, Y. Abe, H. Ono, and A. Aratake, “Low-loss and low-mode-dependent-loss fan-in/fan-out device for 6-mode 19-core fiber,” IEEE J. Lightw Technol., vol. 36, no. 2, pp. 302–308,  2018.

Asakawa, S.

K. Shikama, Y. Abe, S. Yanagi, S. Asakawa, and T. Takahashi, “Multicore fiber connector with physical-contact connection,” IEICE Trans. Electron., vol. E99.C, no. 2, pp. 242–249, 2016.

M. Kobaysashi, S. Asakawa, R. Nagase, and S. Mitach, “A new physical contact connection method using the buckling force of optical fiber,” IEICE Trans. Electron., vol. E80.C, no. 2, pp. 334–339, 1997.

Awaji, Y.

T. Morioka, Y. Awaji, R. Ryf, P. Winzer, D. Richardson, and F. Poletti, “Enhancing optical communications with brand new fibers,” IEEE Comput. Mag. vol. 50, no. 2, pp. S31–S42,  2012.

Doany, F. E.

F. E. Doanyet al., “Multicore fiber 4TX + 4RX optical transceiver based on holey SiGe IC,” presented at the IEEE 64th ECTC, Lake Buena Vista, FL, USA, 2014, pp. 1016–1020.

Doerr, C. R.

C. R. Doerr and T. F. Taunay, “Silicon photonics core-, wavelength-, and polarization-diversity receiver,” IEEE Photon.Technol. Lett., vol. 23, no. 9, pp. 597–599,  2011.

Fishteyn, M.

B. Zhu, T. F. Taunay, M. F. Yan, M. Fishteyn, G. Oulundsen, and D. Vaidya, “70-Gb/s multicore multimode fiber transmissions for optical data links,” IEEE Photon. Technol. Lett., vol. 22, no. 22, pp. 1647–1649,  2010.

Fujii, T.

T. Fujiiet al., “1.3-μm directly modulated membrane laser array employing epitaxial growth of InGaAlAs MQW on InP/SiO2/Si substrate,” presented at the Eur. Conf. Opt. Commun., Düsseldorf, Germany, 2016, Paper Th.3.A.2.

Gere, J. M.

S. P. Timoshenko and J. M. Gere, Theory of Elastic Stability, 2nd ed.New York, NY, USA: McGraw-Hill, 1961.

Hayashi, T.

T. Hayashiet al., “End-to-end multi-core fibre transmission link enabled by silicon photonics transceiver with grating coupler array,” presented at the Eur. Conf. Opt. Commun., 2017, Paper Th.2.A.4.

Heyn, P. D.

P. D. Heynet al., “Ultra-Dense 16 × 56 Gb/s NRZ GeSi EAM-PD arrays coupled to multicore fiber for short-reach 896 Gb/s optical links,” presented at the Opt. Fiber Commun. Conf. Exhib., Los Angeles, CA, USA, 2017, Paper M3G.3.

Hirakawa, K.

T. Oda, K. Hirakawa, K. Ichii, S. Yamamoto, and K. Aikawa, “Thermally expanded core fiber with a 4-mm mode field diameter suitable for low-loss coupling with silicon photonic devices,” presented at the Opt. Fiber Commun. Conf. and Exhib., San Francisco, CA, USA, 2017, Paper Tu3K.5.

Ichii, K.

T. Oda, K. Hirakawa, K. Ichii, S. Yamamoto, and K. Aikawa, “Thermally expanded core fiber with a 4-mm mode field diameter suitable for low-loss coupling with silicon photonic devices,” presented at the Opt. Fiber Commun. Conf. and Exhib., San Francisco, CA, USA, 2017, Paper Tu3K.5.

Imamura, K.

K. Watanabe, T. Saito, K. Imamura, and M. Shiino, “Development of fiber bundle type fan-out for multi-core fiber,” presented at the Opt. Electron. Commun. Conf., Busan, South Korea, 2012, pp. 475–476.

Kachris, C.

C. Kachris and I. Tomkos, “A survey on optical Interconnects for data centers,” IEEE Commun. Surveys Tuts., vol. 14, no. 4, pp. 1021–1036,  2012.

Kishi, T.

T. Kishiet al., “A 137-mW, 4 ch× 25-gbps low-power compact transmitter flip-chip-bonded 1.3-μm LD-array-on-Si,” presented at Opt. Fiber Commun. Conf. Exhib., San Diego, CA, USA, 2018, Paper M2D.2.

Klaus, W.

W. Klauset al., “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett., vol. 24, no. 11, pp. 1902–1905,  2012.

Kobaysashi, M.

M. Kobaysashi, S. Asakawa, R. Nagase, and S. Mitach, “A new physical contact connection method using the buckling force of optical fiber,” IEICE Trans. Electron., vol. E80.C, no. 2, pp. 334–339, 1997.

Lee, B. G.

B. G. Leeet al., “End-to-end multicore multimode fiber optic link operating up to 120 Gb/s,” IEEE J. Lightw. Technol., vol. 30, no. 6, pp. 886–892,  2012.

Matsui, T.

T. Sakamoto, T. Mori, M. Wada, T. Yamamoto, T. Matsui, K. Nakajima, and F. Yamamoto, “Experimental and numerical evaluation of inter-core differential mode delay characteristic of weakly-coupled multi-core fiber,” Opt. Express, vol. 22, no. 26, pp. 31966–31976, 2014.

T. Matsuiet al., “Design of 125 μm cladding multi-core fiber with full-band compatibility to conventional single-mode fiber,” presented at the Eur. Conf. Opt. Commun., Valencia, Spain, 2015, Paper We.1.4.5.

T. Matsuiet al., “118.5 Tbit/s transmission over 316 km-long multi-core fiber with standard cladding diameter,” presented at the Opto-Electronics Commun. Conf. Photon. Global Conf., Singapore, 2017, Paper PD2.

Mitach, S.

M. Kobaysashi, S. Asakawa, R. Nagase, and S. Mitach, “A new physical contact connection method using the buckling force of optical fiber,” IEICE Trans. Electron., vol. E80.C, no. 2, pp. 334–339, 1997.

Mizuno, T.

T. Mizunoet al., “12-core × 3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” presented at the Opt. Fiber Commun. Conf., San Francisco, CA, USA, 2014, Paper Th5B.2.

Mori,

Morioka, T.

T. Morioka, Y. Awaji, R. Ryf, P. Winzer, D. Richardson, and F. Poletti, “Enhancing optical communications with brand new fibers,” IEEE Comput. Mag. vol. 50, no. 2, pp. S31–S42,  2012.

Morita, H.

T. Shoji, T. Tsuchizawa, T. Watanabe, K. Yamada, and H. Morita, " Low loss mode size converter from 0.3 μm square si wire waveguides to single mode fibres,” Electron. Lett., vol. 38, no. 2, pp. 1669–1670, 2002.

Nagase, R.

M. Kobaysashi, S. Asakawa, R. Nagase, and S. Mitach, “A new physical contact connection method using the buckling force of optical fiber,” IEICE Trans. Electron., vol. E80.C, no. 2, pp. 334–339, 1997.

Nakajima, K.

Nishi, H.

Oda, T.

T. Oda, K. Hirakawa, K. Ichii, S. Yamamoto, and K. Aikawa, “Thermally expanded core fiber with a 4-mm mode field diameter suitable for low-loss coupling with silicon photonic devices,” presented at the Opt. Fiber Commun. Conf. and Exhib., San Francisco, CA, USA, 2017, Paper Tu3K.5.

Ono, H.

K. Shikama, Y. Abe, H. Ono, and A. Aratake, “Low-loss and low-mode-dependent-loss fan-in/fan-out device for 6-mode 19-core fiber,” IEEE J. Lightw Technol., vol. 36, no. 2, pp. 302–308,  2018.

Y. Abe, K. Shikama, H. Ono, S. Yanagi, and T. Takahashi, “Fan-in/fan-out device employing v-groove substrate for multicore fibre,” Electron. Lett., vol. 51, no. 17, pp. 1347–1348, 2015.

Oulundsen, G.

B. Zhu, T. F. Taunay, M. F. Yan, M. Fishteyn, G. Oulundsen, and D. Vaidya, “70-Gb/s multicore multimode fiber transmissions for optical data links,” IEEE Photon. Technol. Lett., vol. 22, no. 22, pp. 1647–1649,  2010.

Pinguet, T.

T. Pinguetet al., “Silicon photonics multicore transceivers,” presented at the IEEE Photon. Soc. Summer Topical Meeting Series, Seattle, WA, USA, 2012, Paper WC4.1.

Poletti, F.

T. Morioka, Y. Awaji, R. Ryf, P. Winzer, D. Richardson, and F. Poletti, “Enhancing optical communications with brand new fibers,” IEEE Comput. Mag. vol. 50, no. 2, pp. S31–S42,  2012.

Richardson, D.

T. Morioka, Y. Awaji, R. Ryf, P. Winzer, D. Richardson, and F. Poletti, “Enhancing optical communications with brand new fibers,” IEEE Comput. Mag. vol. 50, no. 2, pp. S31–S42,  2012.

Ryf, R.

T. Morioka, Y. Awaji, R. Ryf, P. Winzer, D. Richardson, and F. Poletti, “Enhancing optical communications with brand new fibers,” IEEE Comput. Mag. vol. 50, no. 2, pp. S31–S42,  2012.

R. Ryfet al., “Space-division multiplexing over 10 km of three-mode fiber using coherent 6 × 6 MIMO processing,” presented at the Opt. Fiber Commun. Conf. Exhib., Los Angeles, CA, USA, 2011, Paper PDPB10.

Saito, T.

K. Watanabe, T. Saito, K. Imamura, and M. Shiino, “Development of fiber bundle type fan-out for multi-core fiber,” presented at the Opt. Electron. Commun. Conf., Busan, South Korea, 2012, pp. 475–476.

Shiino, M.

K. Watanabe, T. Saito, K. Imamura, and M. Shiino, “Development of fiber bundle type fan-out for multi-core fiber,” presented at the Opt. Electron. Commun. Conf., Busan, South Korea, 2012, pp. 475–476.

Shikama, K.

K. Shikama, Y. Abe, H. Ono, and A. Aratake, “Low-loss and low-mode-dependent-loss fan-in/fan-out device for 6-mode 19-core fiber,” IEEE J. Lightw Technol., vol. 36, no. 2, pp. 302–308,  2018.

K. Shikama, Y. Abe, S. Yanagi, S. Asakawa, and T. Takahashi, “Multicore fiber connector with physical-contact connection,” IEICE Trans. Electron., vol. E99.C, no. 2, pp. 242–249, 2016.

Y. Abe, K. Shikama, H. Ono, S. Yanagi, and T. Takahashi, “Fan-in/fan-out device employing v-groove substrate for multicore fibre,” Electron. Lett., vol. 51, no. 17, pp. 1347–1348, 2015.

Y. Abe, K. Shikama, S. Yanagi, and T. Takahashi, “Physical-contact-type fan-out device for multicore fibre,” Electron. Lett., vol. 49, no. 11, pp. 711–712, 2013.

K. Shikama, Y. Abe, S. Yanagi, and T. Takahashi, “Physical-contact conditions for multicore fiber optical connectors,” presented at the Opt. Fiber Commun. Conf. Exhib., Anaheim, CA, USA, 2013, Paper OM3I.1.

K. Shikamaet al., “Multicore-fiber LC receptacle with compact fan-in/fan-out for short-reach transceivers,” presented at Opt. Fiber. Commun. Conf. Exhib., San Diego, CA, USA, 2018, Paper W1A.7.

Shoji, T.

T. Shoji, T. Tsuchizawa, T. Watanabe, K. Yamada, and H. Morita, " Low loss mode size converter from 0.3 μm square si wire waveguides to single mode fibres,” Electron. Lett., vol. 38, no. 2, pp. 1669–1670, 2002.

Takahashi, T.

K. Shikama, Y. Abe, S. Yanagi, S. Asakawa, and T. Takahashi, “Multicore fiber connector with physical-contact connection,” IEICE Trans. Electron., vol. E99.C, no. 2, pp. 242–249, 2016.

Y. Abe, K. Shikama, H. Ono, S. Yanagi, and T. Takahashi, “Fan-in/fan-out device employing v-groove substrate for multicore fibre,” Electron. Lett., vol. 51, no. 17, pp. 1347–1348, 2015.

Y. Abe, K. Shikama, S. Yanagi, and T. Takahashi, “Physical-contact-type fan-out device for multicore fibre,” Electron. Lett., vol. 49, no. 11, pp. 711–712, 2013.

K. Shikama, Y. Abe, S. Yanagi, and T. Takahashi, “Physical-contact conditions for multicore fiber optical connectors,” presented at the Opt. Fiber Commun. Conf. Exhib., Anaheim, CA, USA, 2013, Paper OM3I.1.

Takara, H.

H. Takaraet al., “1.01-Pb/s (12 SDM/222 WDM/456 Gb/s) Crosstalk-managed transmission with 91.4-b/s/Hz aggregate spectral efficiency,” presented at the Eur. Conf. Exhib. Opt. Commun., Amsterdam, The Netherland, 2012, Paper Th.3.C.1.

Taunay, T. F.

C. R. Doerr and T. F. Taunay, “Silicon photonics core-, wavelength-, and polarization-diversity receiver,” IEEE Photon.Technol. Lett., vol. 23, no. 9, pp. 597–599,  2011.

B. Zhu, T. F. Taunay, M. F. Yan, M. Fishteyn, G. Oulundsen, and D. Vaidya, “70-Gb/s multicore multimode fiber transmissions for optical data links,” IEEE Photon. Technol. Lett., vol. 22, no. 22, pp. 1647–1649,  2010.

Thomson, R. R.

Timoshenko, S. P.

S. P. Timoshenko and J. M. Gere, Theory of Elastic Stability, 2nd ed.New York, NY, USA: McGraw-Hill, 1961.

Tomkos, I.

C. Kachris and I. Tomkos, “A survey on optical Interconnects for data centers,” IEEE Commun. Surveys Tuts., vol. 14, no. 4, pp. 1021–1036,  2012.

Tsuchizawa, T.

T. Shoji, T. Tsuchizawa, T. Watanabe, K. Yamada, and H. Morita, " Low loss mode size converter from 0.3 μm square si wire waveguides to single mode fibres,” Electron. Lett., vol. 38, no. 2, pp. 1669–1670, 2002.

Vaidya, D.

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