New control algorithm for automatic PMD compensation system  

作　　者：张锦南 谷月 袁学光 田凤 张晓光 陶金晶 

机构地区：[1]Institute of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications [2]State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications [3]Network Operation Supporting Center,China Mobile Group Beijing Co.,Ltd.

出　　处：《Chinese Optics Letters》2012年第3期27-30,共4页中国光学快报（英文版）

基　　金：supported by the National "863" Program of China(No.2009AA01Z224);the Fundamental Research Funds for the Central Universities(Nos.2009RC0401 and 2009RC0405);the China Postdoctoral Science Foundation(No.20100470259)

摘　　要：A new cross-tracking method is proposed to improve the convergent speed of the control algorithm in real-time polarization mode dispersion（PMD）compensation systems.The cross-tracking algorithm is compared with the previously used dithering particle swarm optimization（DPSO）and gradient particle swarm optimization（GPSO）algorithms,and it is proven to offer the best performance among the three algorithms.The transmission of a 43-Gb/s differential quadrature phase-shift keying（DQPSK）signal over a 1 200-km fiber span using a compensator based on digital signal processing（DSP）is demonstrated via the cross-tracking algorithm.A new cross-tracking method is proposed to improve the convergent speed of the control algorithm in real-time polarization mode dispersion（PMD）compensation systems.The cross-tracking algorithm is compared with the previously used dithering particle swarm optimization（DPSO）and gradient particle swarm optimization（GPSO）algorithms,and it is proven to offer the best performance among the three algorithms.The transmission of a 43-Gb/s differential quadrature phase-shift keying（DQPSK）signal over a 1 200-km fiber span using a compensator based on digital signal processing（DSP）is demonstrated via the cross-tracking algorithm.

关 键 词：ALGORITHMS Quadrature phase shift keying Signal processing Tracking (position) 

分 类 号：TN911.7[电子电信—通信与信息系统]