Two-stage adaptive PMD compensation in a 10 Gbit/s optical communication system using particle swarm optimization algorithm

被引：18

作者：

Zhang, XG ^{[1
]}

Yu, L ^{[1
]}

Zheng, Y ^{[1
]}

Shen, Y ^{[1
]}

Zhou, GT ^{[1
]}

Chen, L ^{[1
]}

Xi, LX ^{[1
]}

Yuan, TC ^{[1
]}

Zhang, JZ ^{[1
]}

Yang, BJ ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, Sch Sci, Dept Phys, Beijing 100876, Peoples R China

来源：

OPTICS COMMUNICATIONS | 2004年 / 231卷 / 1-6期

基金：

中国国家自然科学基金;

关键词：

polarization mode dispersion; adaptive compensation; degree of polarization (DOP);

D O I：

10.1016/j.optcom.2003.12.045

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An experimental investigation of polarization mode dispersion (PMD) adaptive compensation for 10 Gbit/s NRZ and RZ optical communication systems using a two-stage PMD compensator is reported. A monitoring technique based on degree of polarization (DOP) feed back-signals was adopted. Two filtering techniques were used to obtain best estimates of the actual DOP from measurement data. For the first time the particle swarm optimization (PSO) algorithm with local neighborhood structure has been introduced in adaptive PMD compensation. The PSO algorithm is shown to be effective in this application to optimum searching and adaptive tracking control. The two-stage compensator is shown to be effective for both first- and second-order PMD, and the compensator is shown to be modulation format independent. The optimum searching time is within several hundreds of milliseconds. The response time for recovery from a sharp disturbance is less than 20 ms. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：233 / 242

页数：10

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