连续波微扰下飞秒光孤子的传输特性研究  

Research on the Propagation of Femetosecond Optical Solitons Under the Perturbation of Continuous Wave

作　　者：田晋平[1] 周国生[2] 

机构地区：[1]山西大学计算中心,山西太原030006 [2]山西大学电子信息技术系,山西太原030006

出　　处：《光子学报》2005年第9期1389-1392,共4页Acta Photonica Sinica

基　　金：国家自然科学基金(60244006;60477026)资助项目

摘　　要：给出了描述连续波扰动下飞秒光脉冲在光纤系统中传输的微扰高阶非线性薛定谔方程,通过矩法和微扰理论分析了飞秒亮孤子与连续波相互作用的特性,并利用龙格-库塔积分和分步傅里叶方法进行了数值模拟.结果表明,连续波微扰对光纤孤子通讯系统是十分有害的,在实际通讯过程中应当尽量避免连续波的渗入.Perturbed higher order nonlinear Schrodinger equation describing the propagation of femetosecond optical pulse in the optical fiber under the perturbation of continuous wave was presented. The interactions between bright optical soliton and continuous wave have been studied by moment method and perturbation theory. Also the numerical evolution by Runge-Kutta and split step Fourier method are given. As a conclusion,the injected continuous wave should be avoided at best since it was harmful to the optical soliton communication.

关 键 词：光通讯 光孤子 高阶非线性薛定谔方程 连续波 

分 类 号：O437[机械工程—光学工程]