采用掺铒光纤放大器（EDFA）的19芯多芯光纤（MCF）传输系统，通过自由空间光学实现共享纤芯泵浦耦合。

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

作者信息

Sakaguchi Jun, Klaus Werner, Puttnam Benjamin J, Mendinueta José Manuel Delgado, Awaji Yoshinari, Wada Naoya, Tsuchida Yukihiro, Maeda Koichi, Tadakuma Masateru, Imamura Katsunori, Sugizaki Ryuichi, Kobayashi Tetsuya, Tottori Yusaku, Watanabe Masayuki, Jensen R V

出版信息

Opt Express. 2014 Jan 13;22(1):90-5. doi: 10.1364/OE.22.000090.

DOI:10.1364/OE.22.000090

PMID:24514969

Abstract

We report the development of a space division multiplexed (SDM) transmission system consisting of a 19-core fiber and 19-core Erbium-doped fiber amplifier (EDFA). A new 19-core fiber with an improved core arrangement was employed to achieve a low aggregated inter-core crosstalk of -42 dB at 1550 nm over 30 km. The EDFA uses shared free-space optics for pump beam combining and isolation, thus is SDM transparent and has some potential for cost reduction. 19.6 dB to 23.3 dB gain and 6.0 dB to 7.0 dB noise figure were obtained for each SDM channel at 1550 nm. System feasibility for SDM transmission over 1200 km was demonstrated with 100 Gb/s PDM-QPSK signals.

摘要

我们报告了一种由19芯光纤和19芯掺铒光纤放大器（EDFA）组成的空分复用（SDM）传输系统的研发情况。采用了一种具有改进纤芯排列的新型19芯光纤，以在30公里的距离上实现1550纳米处-42分贝的低聚合芯间串扰。该EDFA使用共享自由空间光学器件进行泵浦光束合并和隔离，因此对SDM透明，并且具有一定的成本降低潜力。在1550纳米处，每个SDM通道获得了19.6分贝至23.3分贝的增益以及6.0分贝至7.0分贝的噪声系数。利用100吉比特每秒的偏振复用四相相移键控（PDM-QPSK）信号证明了该系统在1200公里上进行SDM传输的可行性。