Ultra-Long-Haul High-Capacity Super-Nyquist-WDM Transmission Experiment Using Multi-Core Fibers
Ultra-Long-Haul High-Capacity Super-Nyquist-WDM Transmission Experiment Using Multi-Core Fibers
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DOI：
10.1109/jlt.2015.2396902
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发表时间：
2015-03
影响因子：
4.7
通讯作者：
K. Igarashi;T. Tsuritani;I. Morita;Masatoshi Suzuki
中科院分区：
文献类型：
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作者：
K. Igarashi;T. Tsuritani;I. Morita;Masatoshi Suzuki
本文介绍了在越洋级光纤传输中，使容量-距离乘积达到1 Exbit/s×km以上的有前途的技术。一种是基于具有最大似然序列估计的多二进制脉冲整形的超奈奎斯特波分复用（WDM）技术，其中可以复用具有小于信号波特率的WDM间隔的光信号。另一种技术是基于具有多芯掺铒光纤放大器（EDFA）的多芯光纤（MCF）的空分复用技术，其中当MCF的芯数增加时，光纤容量可以增加。最后，我们提出了一个演示的140.7-Tbit/s，7 326公里的传输201信道的25-GHz的间隔的Super-Nyquist-WDM 100-Gbit/s的光信号使用七芯光纤和全C波段七芯EDFA。
This paper describes promising techniques for approaching the capacity-distance product over 1 Exabit/s×km in the transoceanic-class optical fiber transmission. One is the Super-Nyquist wavelength-division multiplexing (WDM) technique based on poly-binary-pulse shaping with maximum likelihood sequence estimation, in which it is possible to multiplex optical signals with WDM spacing of less than the signal baudrate. Another technique is the space-division multiplexing technique based on multi-core fibers (MCFs) with multi-core Erbium-doped fiber amplifiers (EDFAs), in which the fiber capacity can be increased when the number of cores of MCF is increased. Finally, we present a demonstration of 140.7-Tbit/s, 7 326-km transmission of 201-channel 25-GHz-spaced Super-Nyquist-WDM 100-Gbit/s optical signals using seven-core fibers and full C-band seven-core EDFAs.