色散控制孤子系统中光纤偏振模色散的滤波控制

本文研究高速OTDM色散控制孤子系统偏振模色散的影响及其滤波控制.首先建立了同时考虑偏振模色散和滤波控制时的DMS传输方程,其次采用变分法给出了滤波控制常双折射光纤中DMS传输方程的变分解,求得了DMS的特征参数的传输演化规律,然后研究了滤波控制随机双折射光纤中DMS传输稳定性问题及其定时抖动规律.最后基于变分所得定时抖动公式,分析了三种不同系统的定时抖动,显示了DMS系统中用滤波器抑制PMD时,对高速光孤子通信性能的影响是非常有效的.

Filters Control of the Polarization Mode Dispersion in Dispersion Managed Soliton Systems

The effects of polarization mode dispersion and filters control are studied in systems of high speed OTDM dispersion managed soliton.Firstly,the dispersion managed soliton (DMS) transmission equations considering effects of polarization mode dispersion and filters are built.Secondly,the filter control DMS transmission with constant birefringence fibers is analyzed by Variational method,from which the transmission rule of DMS characteristic parameters can be obtained.At the same time,the stabilities of DMS transmission and its timing jitter rules controlled by filters are also investigated.Based on the expressions of timing jitter obtained by variational method,the timing jitter of three systems is discussed,with the results reveaing that it is very effective for filters to restrain the influence of PMD in DMS communication systems.