光纤通信偏振膜色散误差消除研究与仿真

Error Eliminate and Simulation of Optical Fiber Communication Polarization Membrane Dispersion

研究光纤通信准确接收优化问题。由于基本的光纤材料中,密度分布不均匀,造成偏振主态与差分群时延耦合性较差。传统光纤通信算法进行远程通信时,偏振膜密度的不均匀分布会发生色散,造成色散误差,降低了信号接收频谱的准确率。提出了一种偏振膜色散误差消除方法,提取矢量偏振态参数,利用光纤信号传递矩阵计算偏振膜色散误差,对偏振主态进行傅里叶变换,消除偏振膜色散对信号接收频谱的影响。实验证明,利用光纤通信偏振膜色散误差消除算法,能够提高光纤通信信号接收频谱的准确率,为提高通信的准确性提供了参考。

Study the probem of the spectrum receiving correctly in optical fiber communication. The put forward an error eliminate algorithm of polarization membrane dispersion. The algorithm extracts the polarization vector pa- rameters, uses optical fiber signal transfer matrix to calculate polarization membrane dispersion errors, and carries out Fourier transform for the polarization state to eliminate the influence of polarization membrane dispersion on receiving signal spectrum. The experiment shows that the application of error eliminate algorithm can enhance the accuracy of optical fiber communication receiving signal spectrum, and satisfactory results have been obtained.