皮秒孤子色散管理传输特性研究  

An investigation on the transmission properties of picoseconds soliton transmitting in dispersion management fibers

作　　者：汪仲清[1] 万鹏[1] 

机构地区：[1]重庆邮电大学光电工程学院,重庆400065

出　　处：《激光杂志》2008年第2期47-49,共3页Laser Journal

基　　金：重庆市科委自然科学基金资助项目(NO.CSTC;2006BB2361)

摘　　要：从描述光纤中孤子脉冲传输的非线性薛定谔(NLS)方程出发,利用对称分步傅里叶方法对方程进行数值求解,研究了常规光纤中皮秒孤子色散管理(DMS)的传输演化特性。结果表明,孤子在通过密集周期性搭配具有相反色散系数的常规光纤中传输,可以降低孤子间的相互作用,使得孤子的传输演化特性得到改善。最后指出,利用色散管理来对常规光纤中光孤子脉冲之间的相互作用加以拟制,从而提高信息传输的比特率,必须具有特殊的光纤制造工艺。Starting from the nonlinear Schrtodinger （NLS） equation expressing the picoseconds soliton pulse transmitting in normal optical fibers, the evolution proporties of the dispersion management soliton （DMS） are studied by making use of symmetrical slit - step Fourier numerical method. It is shown that the interaction of the optical solitons is decreased when the solitons are transmitting in the fiber dense managed opposite dispersion coefficient periodically, which the transmission proporties of the soliton are improved. And then, that there must be a special manufacture technology of fiber is pointed out in this paper if the method of DMS is used to inhibit the interaction of the selitons in normal fiber, which will increase the bit rate of the information transmission.

关 键 词：色散管理孤子 传输特性 非线性薛定谔方程 分步傅里叶法 光孤子通信 

分 类 号：TN929.11[电子电信—通信与信息系统]