Abstract

We achieved record 109-Tb/s transmission over 16.8 km, using space division multiplexing (SDM) together with conventional multiplexing technology. 7-core SDM, 97 WDM (100-GHz spacing), 2 × 86 Gb/s PDM-QPSK signals were used. The spectral efficiency was 11.2 b/s/Hz. SDM transmission was realized using a multi-core fiber with ultra-low-crosstalk (less than -90.0 dB/km at 1550 nm) and high performance SDM MUX/DEMUX. The overall SDM crosstalk of -53 dB caused almost no penalty for the PDM-QPSK transmission.

© 2012 IEEE

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2011 (3)

S. Matsuo, "Crosstalk behavior of cores in multi-core fiber under bent condition," IEICE Elex. 8, 385-390 (2011).

K. Imamura, "Investigation on multi-core fibers with large $A_{\rm eff}$ and low micro bending loss," Opt. Exp. 19, 10595-10603 (2011).

M. Mizukami, "128$\,\times\,$128 three-dimensional MEMS optical switch module with simultaneous optical path connection for optical cross-connect systems," Appl. Opt. 50, 4037-4041 (2011).

2010 (5)

J. M. Fini, "Statistics of crosstalk in bent multicore fibers," Opt. Exp. 18, 15122-15129 (2010).

B. Szafraniec, "Polarization demultiplexing in stokes space," Opt. Exp. 18, 17928-17939 (2010).

A. D. Ellis, "Approaching the non-linear Shannon limit," J. Lightw. Technol. 28, 423-433 (2010).

B. Zhu, "Seven-core multicore fiber transmissions for passive optical network," Opt. Exp. 18, 11117-11122 (2010).

B. Zhu, "70-Gb/s multicore multimode fiber transmissions for optical data link," IEEE Photon. Technol. Lett. 22, 1647-1649 (2010).

2009 (2)

M. Koshiba, "Heterogeneous multi-core fibers: Proposal and design principle," IEICE Elex. 6, 98-103 (2009).

Y. Kokubun, "Novel multi-core fibers for mode division multiplexing: Proposal and design principle," IEICE Elex 6, 522-528 (2009).

2006 (1)

T. Kawanishi, "High-speed optical DQPSK and FSK modulation using integrated Mach–Zehnder interferometers," Opt. Exp. 14, 4469-4478 (2006).

Appl. Opt. (1)

IEEE Photon. Technol. Lett. (1)

B. Zhu, "70-Gb/s multicore multimode fiber transmissions for optical data link," IEEE Photon. Technol. Lett. 22, 1647-1649 (2010).

IEICE Elex (1)

Y. Kokubun, "Novel multi-core fibers for mode division multiplexing: Proposal and design principle," IEICE Elex 6, 522-528 (2009).

IEICE Elex. (2)

S. Matsuo, "Crosstalk behavior of cores in multi-core fiber under bent condition," IEICE Elex. 8, 385-390 (2011).

M. Koshiba, "Heterogeneous multi-core fibers: Proposal and design principle," IEICE Elex. 6, 98-103 (2009).

J. Lightw. Technol. (1)

A. D. Ellis, "Approaching the non-linear Shannon limit," J. Lightw. Technol. 28, 423-433 (2010).

Opt. Exp. (5)

J. M. Fini, "Statistics of crosstalk in bent multicore fibers," Opt. Exp. 18, 15122-15129 (2010).

T. Kawanishi, "High-speed optical DQPSK and FSK modulation using integrated Mach–Zehnder interferometers," Opt. Exp. 14, 4469-4478 (2006).

B. Szafraniec, "Polarization demultiplexing in stokes space," Opt. Exp. 18, 17928-17939 (2010).

K. Imamura, "Investigation on multi-core fibers with large $A_{\rm eff}$ and low micro bending loss," Opt. Exp. 19, 10595-10603 (2011).

B. Zhu, "Seven-core multicore fiber transmissions for passive optical network," Opt. Exp. 18, 11117-11122 (2010).

Other (24)

D. Qian, "101.7-Tb/s (370$\,\times\,$294-Gb/s) PDM-128QAM-OFDM transmission over 3$\,\times\,$55-km SSMF using pilot-based phase noise mitigation," Proc. OFC/NFOEC (2011).

“Cisco visual networking index: Forecast and methodology, 2010–2015,” (2011) http://www.cisco.com/en/US/solutions/collateral/ns341/ns525/ns537/ns705/ns827/white_paper_c11-481360_ns827_Networking_Solutions_White_Paper.html.

H. Onaka, "1.1 Tb/s WDM transmission over a 150 km 1.3 $\mu$m zero-dispersion single-mode fiber," Proc. OFC (1996).

A. Sano, "14-Tb/s (140$\,\times\,$111-Gb/s PDM/WDM) CSRZ-DQPSK transmission over 160 km using 7-THz bandwidth extended L-band EDFAs," Proc. ECOC (2006).

J.-L. de Bougrenet de la Tocnay, et al., Connection device for multiple-core optical fibers based on optical elements in free space U.S. Patent 6 078 708 (2000) et al..

K. Takenaga, "Reduction of crosstalk by quasi-homogeneous solid multi-core fiber," Proc. OFC/NFOEC (2010).

K. Saitoh, "Multi-core hole-assisted fibers for high core density space division multiplexing," Proc. OECC (2010).

T. Hayashi, "Crosstalk variation of multi-core fibre due to fibre bend," Proc. ECOC (2010).

T. Hayashi, "Low-crosstalk and low-loss multi-core fiber utilizing fiber bend," Proc. OFC/NFOEC (2011).

K. Takenaga, "Reduction of crosstalk by trench-assisted multi-core fiber," Proc. OFC/NFOEC (2011).

T. Hayashi, "Ultra-low-crosstalk multi-core fiber feasible to ultra-long-haul transmission," Proc. OFC/NFOEC (2011).

B. G. Lee, "120-Gb/s 100-m transmission in a single multicore multimode fiber containing six cores interfaced with a matching VCSEL array," Proc. IEEE Photon. Soc. Summer Topical Meeting (2010).

B. G. Lee, "Multimode transceiver for interfacing to multicore graded-index fiber capable of carrying 120-Gb/s over 100-m lengths," Proc. IEEE Photon. Soc. 23rd Annual Meeting (2010) pp. 564-565.

J. Sakaguchi, "Propagation characteristics of seven-core fiber for spatial and wavelength division multiplexed 10-Gbit/s channels," Proc. OFC/NFOEC (2011).

B. Zhu, "Space-, wavelength-, polarization-division multiplexed transmission of 56-Tb/s over a 76.8-km seven-core fiber," Proc. OFC/NFOEC 2011 (2011).

J. Sakaguchi, "109-Tb/s (7$\,\times\,$97$\,\times\,$172-Gb/s SDM/WDM/PDM) QPSK transmission through 16.8-km homogeneous multi-core fiber," Proc. OFC/NFOEC (2011).

Y. Yamamoto, "OSNR-enhancing pure-silica-core fiber with large effective area and low attenuation," Proc. OFC/NFOEC (2010).

A. Li, "Reception of mode and polarization multiplexed 107-Gb/s COOFDM signal over a two-mode fiber," Proc. OFC/NFOEC (2011).

M. Salsi, "Transmission at 2$\,\times\,$100 Gb/s, over two modes of 40 km-long prototype few-mode fiber, using LCOS-based mode multiplexer and demultiplexer," Proc. OFC/NFOEC (2011).

R. Ryf, "Space-division multiplexing over 10 km of three-mode fiber using coherent 6$\,\times\,$6 MIMO processing," Proc. OFC/NFOEC (2011).

A. Chraplyvy, "The coming capacity crunch," Proc. ECOC (2009).

M. Nakazawa, "Giant leaps in optical communication technologies towards 2030 and beyond," Proc. ECOC (2010).

T. Morioka, "New generation optical infrastructure technologies: “EXAT initiative” towards 2020 and beyond," Proc. OECC (2009).

R. J. Essiambre, "Capacity limits of fiber-optic communication systems," Proc. OFC/NFOEC (2009).

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