Intra-channel nonlinearities mitigation in pseudo-linear coherent QPSK transmission systems via nonlinear electrical equalizer

被引：71
作者：
Gao, Yan [1 ]
Zhang, Fan [1 ]
Dou, Liang [1 ]
Chen, Zhangyuan [1 ]
Xu, Anshi [1 ]
机构：
[1] Peking Univ, Sch Elect Engn & Comp Sci, State Key Lab Adv Opt Commun Syst & Networks, Beijing 100871, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2009年 / 282卷 / 12期
基金：
中国国家自然科学基金;
关键词：
Coherent detection; Digital signal processing; Intra-channel nonlinearities; Optical fiber communication; ELECTRONIC POSTCOMPENSATION; PHASE; COMPENSATION; RECEIVER;
D O I：
10.1016/j.optcom.2009.03.002
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel nonlinear electrical equalizer (NLEE) based on Volterra theory is proposed for mitigating intra-channel nonlinearities in pseudo-linear coherent optical communication systems. According to the temporal matching condition of intra-channel nonlinear pulse interactions, we just select specific nonlinear terms and reduce the computation complexity considerably. Numerical simulations of 10GBaud coherent quadrature phase-shift keying (QPSK) transmission show that the simplified NLEE can efficiently mitigate intra-channel nonlinearities. (C) 2009 B.V. All rights reserved.
引用
收藏
页码：2421 / 2425
页数：5
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