光孤子通信系统的色散控制研究  

Dispersive control of fiber soliton communication system

作　　者：赵义红[1] 李正文[1] 刘永智[1] 何其四[1] 

机构地区：[1]成都理工大学信息工程学院,四川成都610059

出　　处：《光电工程》2005年第11期36-38,共3页Opto-Electronic Engineering

基　　金：国家自然科学基金项目(10404039)

摘　　要：光纤色散特性是支撑光纤孤子通信的决定性因素。比较了目前的几种色散补偿方案后,着重对相位共轭控制的色散控制方式进行了分析研究,该方式利用光纤非线性四波混频产生与输入光脉冲信号相位共轭的输出光脉冲信号,光脉冲的频谱以泵浦光频为中心进行反转,构建成相位共轭器,实现了对放大自发辐射(ASE)噪声、孤子相互作用与色散波等的控制,达到提高系统传输速率、距离和通信容量的目的。The dispersive characteristic of fiber is a key factor for the fiber soliton communication system. A compensation method of phase conjugate control for dispersion is studied after comparing several dispersive compensation methods. With nonlinear-effect of four wave mixing, output optical pulse signals whose phase conjugates with the input pulse signals can be generated. The optical pulse spectrum is reversed around the center of the pumping frequency. As a result, the phase conjugate controller can reduce Amplified Spontaneous Emission （ASE） noise, restrain interaction effect of the solitons and control dispersive wave, etc.

关 键 词：孤子 色散 非线性效应 相位共轭控制 

分 类 号：TN929.1[电子电信—通信与信息系统]