Chinese Optics Letters, 2004, 2 (6): 06316, Published Online: Jun. 6, 2006  

Two-stage adaptive PMD compensation in 40-Gb/s OTDM optical communication system Download: 544次

Author Affiliations
1 Department of Physics, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876
2 Department of Electronic Engineering, Tsinghua University, Beijing 100084
Abstract
An experiment of two-stage adaptive compensation for polarization mode dispersion (PMD) in a 40-Gb/s optical time-division multiplexed communication system is reported. The PMD monitoring technique based on degree of polarization was adopted. The particle swarm optimization (PSO) algorithm was introduced in adaptive PMD compensation. The comparison was made to estimate the effectiveness between PSO algorithms with global neighborhood structure (GPSO) and with local neighborhood structure (LPSO). The LPSO algorithm is shown to be more effective to search global optimum for PMD compensation than GPSO algorithm. The two-stage PMD compensator is shown to be effective for both first- and second-order PMD, and the compensator is shown to be bit rate independent. The optimum searching time is within one hundred milliseconds.

Xiaoguang Zhang, Lixia Xi, Li Yu, Guangtao Zhou, Jianzhong Zhang, Na Zhang, Bin Wu, Tiecheng Yuan, Lin Chen, Hongming Zhang, Shuo Chen, Minyu Yao, Bojun Yang. Two-stage adaptive PMD compensation in 40-Gb/s OTDM optical communication system[J]. Chinese Optics Letters, 2004, 2(6): 06316.

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