Abstract

We describe a series of optical transmission experiments based around single-mode, multi-core fiber (MCF) amplified with 19-core, C+L band erbium-doped fiber amplifier (EDFA). The cladding-pumped amplifier uses two multi-mode pumps in each of C and L band to provide gain bandwidth over more than 75 nm. For recirculating transmission of PDM-16QAM signals on 345 wavelength carriers between 1530.52 nm and 1605.52 nm, we measure 0.715 Pb/s transmission over a distance of 2009 km (64 recirculations), equivalent to a throughput-distance product of 1.44 exabit/s x km. Next, using PDM-QPSK modulation, we investigate trans-oceanic transmission distances, measuring throughputs of 18.6 Tb/s and 14.5 Tb/s in 2 cores after 255 recirculations, a distance of 8007 km. Further, we evaluate the combined EDFA and fiber crosstalk penalties showing a core and wavelength dependence in agreement with previous MCF crosstalk measurements. These results demonstrate the potential of high core-count EDFAs to combine both high capacity transmission over transoceanic distances with benefits of SDM integration.

19-core MCF transmission system using EDFA with shared core pumping coupled via free-space optics

Jun Sakaguchi, Werner Klaus, Benjamin J. Puttnam, José Manuel Delgado Mendinueta, Yoshinari Awaji, Naoya Wada, Yukihiro Tsuchida, Koichi Maeda, Masateru Tadakuma, Katsunori Imamura, Ryuichi Sugizaki, Tetsuya Kobayashi, Yusaku Tottori, Masayuki Watanabe, and R. V. Jensen
Opt. Express 22(1) 90-95 (2014)

S-, C- and L-band transmission over a 157 nm bandwidth using doped fiber and distributed Raman amplification

Benjamin J. Puttnam, Ruben S. Luís, Georg Rademacher, Manuel Mendez-Astudillio, Yoshinari Awaji, and Hideaki Furukawa
Opt. Express 30(6) 10011-10018 (2022)

First demonstration of MC-EDFA-repeatered SDM transmission of 40 x 128-Gbit/s PDM-QPSK signals per core over 6,160-km 7-core MCF

H. Takahashi, T. Tsuritani, E. L. T. de Gabory, T. Ito, W. R. Peng, K. Igarashi, K. Takeshima, Y. Kawaguchi, I. Morita, Y. Tsuchida, Y. Mimura, K. Maeda, T. Saito, K. Watanabe, K. Imamura, R. Sugizaki, and M. Suzuki
Opt. Express 21(1) 789-795 (2013)

High-capacity self-homodyne PDM-WDM-SDM transmission in a 19-core fiber

Benjamin J. Puttnam, Ruben Luis, José-Manuel Delgado-Mendinueta, Jun Sakaguchi, Werner Klaus, Yoshinari Awaji, Naoya Wada, Atsushi Kanno, and Tetsuya Kawanishi
Opt. Express 22(18) 21185-21191 (2014)

110.9-Tbit/s SDM transmission over 6,370 km using a full C-band seven-core EDFA

Koji Igarashi, Koki Takeshima, Takehiro Tsuritani, Hidenori Takahashi, Seiya Sumita, Itsuro Morita, Yukihiro Tsuchida, Masateru Tadakuma, Koichi Maeda, Tsunetoshi Saito, Kengo Watanabe, Katsunori Imamura, Ryuichi Sugizaki, and Masatoshi Suzuki
Opt. Express 21(15) 18053-18060 (2013)