光子学报, 2005, 34 (4): 561, 网络出版: 2006-06-12
40Gbit/sOTDM系统中二阶偏振模色散自适应补偿技术研究
The Experimental Research on Adaptive PMD Compensation up to Second-Order in 40 Gbit/s OTDM System
光纤通信 偏振模色散 自适应补偿 粒子群优化算法 Optical fiber communication Polarization mode dispersion Adaptive compensation Degree of polarization
摘要
报导了一个40 Gbit/s OTDM系统中二阶偏振模色散(PMD)自适应补偿系统,此实验系统基于偏振度的反馈控制方法实现了二阶偏振模色散自动补偿.在中心波长1560.5nm处,补偿后的DGD和二阶PMD效应改善明显.采用粒子群优化算法作为偏振模色散自适应补偿的搜索算法,补偿时间30ms左右.
Abstract
The experiments of the adaptive compensation up to Second-Order in 40 Gbit/ s OTDM System based on degree of polarization (DOP) feedback control are reported. Around the operation wavelength 1560.5 nm of laser source, the DGD and the Second Order PMD decreased obviously after compensation. The effectiveness of the PMD compensator was confirmed by the comparison of eye diagrams, PMD measurement and BER analyses before and after compensation. The particle swarm optimization (PSO) was employed as control algorithm in the Adaptive PMD Compensation system. The compensation time was 30 ms.
张建忠, 张晓光, 于丽, 席丽霞, 沈昱, 周光涛, 张娜, 吴斌, 苑铁成. 40Gbit/sOTDM系统中二阶偏振模色散自适应补偿技术研究[J]. 光子学报, 2005, 34(4): 561. 张建忠, 张晓光, 于丽, 席丽霞, 沈昱, 周光涛, 张娜, 吴斌, 苑铁成. The Experimental Research on Adaptive PMD Compensation up to Second-Order in 40 Gbit/s OTDM System[J]. ACTA PHOTONICA SINICA, 2005, 34(4): 561.
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