Optimized optical phase conjugation conf iguration for f iber nonlinearity compensation in CO-OFDM systems  

作　　者：李炉焦 乔耀军 纪越峰 

机构地区：[1]Key Laboratory of Information Photonics and Optical Communications, Ministry of Education, Beijing University of Posts and Telecommunications

出　　处：《Chinese Optics Letters》2011年第6期31-35,共5页中国光学快报（英文版）

基　　金：supported in part by the National Natural Science Foundation of China (No. 60932004);the National "863" Program of China (No. 2009AA01A345);the National "973" Program of China (No.2007CB310705)

摘　　要：The optimized optical phase conjugation （OPC） configuration is proposed for the 40-Gb/s CO-OFDM system. The proposed configuration for nonlinear cancellation is systematically depicted in transmission links with lumped amplification. Numerical simulations are performed to demonstrate effectiveness. Simulation results show that mid-span spectral inversion （MSSI） can partially compensate for nonlinear distortions. Moreover, its optimized configuration can further improve system performances and increase nonlinear compensation effectiveness. Compared with MSSI, the maximal Q factor, nonlinear threshold, and transmission distance of optimized OPC configuration increase by over 1.6 dB, 2 dB, and 2 times, respectively.The optimized optical phase conjugation （OPC） configuration is proposed for the 40-Gb/s CO-OFDM system. The proposed configuration for nonlinear cancellation is systematically depicted in transmission links with lumped amplification. Numerical simulations are performed to demonstrate effectiveness. Simulation results show that mid-span spectral inversion （MSSI） can partially compensate for nonlinear distortions. Moreover, its optimized configuration can further improve system performances and increase nonlinear compensation effectiveness. Compared with MSSI, the maximal Q factor, nonlinear threshold, and transmission distance of optimized OPC configuration increase by over 1.6 dB, 2 dB, and 2 times, respectively.

关 键 词：Optical phase conjugation OPTIMIZATION Telecommunication systems 

分 类 号：TN919.3[电子电信—通信与信息系统]