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

来源：Optik, 2017, 136: 480-486.

DOI：10.1016/j.ijleo.2017.02.040

• Optical communications
• Constant modulus algorithm
• Dispersion compensation
• Variable step size
• Mean-square error

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.

• 出版日期2017
• 单位中国人民解放军国防科学技术大学