An improved CMA for dispersion compensation in 100 Gbps DP-QPSK optical signal transmission system

作     者：Qin, Jiangyi Liu, Chunwu Huang, Zhiping Su, Shaojing Zhang, Yimeng 

作者机构：Natl Univ Def Technol Coll Mechatron Engn & Automat Changsha 410073 Hunan Peoples R China 

出 版 物：《OPTIK》 (光学)

年 卷 期：2017年第136卷

页      面：480-486页

核心收录：

学科分类：070207[理学-光学] 07[理学] 08[工学] 0803[工学-光学工程] 0702[理学-物理学] 

主　　题：Optical communications Constant modulus algorithm Dispersion compensation Variable step size Mean-square error 

摘      要：An improved constant modulus algorithm (CMA) for dispersion compensation in 100 Gbps Dual Polarization-Quadrature Phase Shift Keying (DP-QPSK) optical signal transmission system is proposed to achieve better reliability receiving performances. In the receiver, we combine variable step size and Mean-Square Error (MSE) to improve the conventional CMA. Compared to conventional CMA, the proposed algorithm has a better performance in adapting the time varying channel and the strong noise. Meanwhile, the proposed algorithm has a faster convergence rate than the previous one. Simulation results show that the improved CMA can achieve the dispersion and polarization demultiplexing of 100 Gbps DP-QPSK optical signal transmission system efficiently. (C) 2017 Elsevier GmbH. All rights reserved.