单模光纤的偏振模色散及其补偿方法  

Theoretical Analysis of Polarization Mode Dispersion in Single-Mode Fiber and its Compensating Techniques

作　　者：邓卫华[1] 李玉权[1] 

机构地区：[1]解放军理工大学通信工程学院,江苏南京210016

出　　处：《解放军理工大学学报（自然科学版）》2001年第5期45-49,共5页Journal of PLA University of Science and Technology(Natural Science Edition)

摘　　要：在单个波长通道的传输速率高于 1 0 Gbit/s的超高速光纤传输系统中 ,偏振模色散极大地限制了整个通信系统的通信容量 ,必须加以控制和补偿。先对偏振模色散的产生机理、统计分布规律进行了分析、讨论 ,接着介绍了在光纤线路中测量偏振模色散的后向散射光测试法及其测量原理 ,并从琼斯矩阵 (偏振态传输函数矩阵 )出发 ,通过分析其泰勒展开式 ,分别推导出可补偿一阶和二阶偏振模色散的均衡器所要满足的条件 。Severely limiting the channel capacity of fiber-optical communication systems in which bit rate in a single wavelength channel is over 10Gbit/s, Polarization Mode Dispersion (PMD) must be properly controlled and compensated. The producing mechanism and statistic distributing rules of PMD are analyzed first. To measure PMD in a fiber link, the method that makes use of backward scattering light is then introduced. Using Taylors expansion, PMD equalizers that can compensate PMD up to the second order are obtained from Jones matrix (polarization state transfer function matrix), which is illustrated in diagrams.

关 键 词：双折射 偏振模色散 色散补偿 单模光纤 光纤通信系统 后向散射光测试法 

分 类 号：TN929.11[电子电信—通信与信息系统]