在线放大器为PSA的动态孤子通信系统传输性能受光纤色散参量影响的研究  

The effect of the fiber dispersion parameter on the transmission performance of dynamic-soliton system using PSA as in-line amplifiers

作　　者：李跃辉[1] 林洪榕[2] 许宗泽[1] 钱胜[2] 杨爱霞[2] 

机构地区：[1]南京航空航天大学信息科学和技术学院,江苏南京210016 [2]南京邮电学院通信工程系,江苏南京210003

出　　处：《通信学报》2004年第9期56-61,共6页Journal on Communications

基　　金：江苏省自然科学基金(BK2002032)

摘　　要：通过计算机系统仿真研究光纤色散参量对以相敏光放大器(PSA)作为在线放大器的动态孤子系统传输性能的影响。研究结果表明,PSA增益的相敏特性使孤子脉冲主瓣幅度因光纤色散而下降,脉宽展宽,出现旁瓣。光纤色散值越大,经长距离传输后,孤子脉冲主瓣的下降幅度和脉宽展宽程度越显著;且旁瓣脉宽越宽。The effect of optical fiber dispersion parameter on the transmission performance of dynamic-soliton system using PSA as in-line amplifiers has been analyzed theoretically by computer simulation. Our simulation results show that because of the phase-sensitive nature of PSA's gain, fiber dispersion will cause soliton pulse amplitude descending and its width broadening. Moreover it will result in pulse wings presenting. The larger the fiber dispersion is, the more significant the pulse amplitude descending and its width broadening are, as well as the wider the wing's width is, after long distance transmission.

关 键 词：相敏光放大器 动态孤子 光纤色散 系统仿真 

分 类 号：TN929.11[电子电信—通信与信息系统]