光纤非线性效应中孤子传输稳定性的分析  

Stable Propagation of Optical Soliton in the Fiber Communication System with Nonlinear Effect

作　　者：李齐良[1] 陈向东 唐向宏[2] 袁晓[1] 陈波 林理彬[1] 

机构地区：[1]四川大学物理科学与技术学院,四川成都610064 [2]杭州电子工业学院通信分院,浙江杭州310037

出　　处：《中国激光》2003年第7期624-628,共5页Chinese Journal of Lasers

摘　　要：要抑制Gordon-Haus效应引起的光孤子脉冲到达时间的抖动,在光通信系统中插入窄带滤波器,以补偿窄带滤波器的损耗,其额外的线性增益会放大与孤子链同时存在的线性波,导致背景的不稳定。如果光的强度足够强,光纤中会产生非线性增益,利用这种效应,不需要补偿窄带滤波器的损耗,而使孤子实现稳定传输。从理论上研究了光纤具有非线性增益情形下,孤子稳定传输的条件。To suppress Gordon-Haus effect, the narrow filter is inserted into optical communication system, as a result of compensating for the filter loss, the excess linear gain amplifies linear waves coexistent with soliton trains, leading to instability of the background. If light intensity is strong enough, in fiber the nonlinear gain will be engendered, by use of the effect, it is not necessary to compensate for the filter loss. This paper have studied the optical soliton stable propagation in the fiber communication system with nonlinear gain circumstance in the case of introducing the soliton potential function in the theory aspect.

关 键 词：光纤通信技术 非线性增益 光孤子 群速色散 

分 类 号：TN929.11[电子电信—通信与信息系统]