光纤激光器中两种孤子形成机制的实验研究  

Experimental study of two distinctive type of soliton shaping mechanism in the fiber lasers

作　　者：雷大军[1] 董辉[1] 

机构地区：[1]湘南学院物理与电子信息工程系,湖南郴州423000

出　　处：《光通信技术》2012年第8期17-19,共3页Optical Communication Technology

基　　金：湘南学院科研基金资助项目(09Z007)资助

摘　　要：光纤激光器中具有两种孤子形成机制,一种是光纤非线性效应与腔色散的相互作用,另一种是增益饱和与增益色散的相互作用。从实验上研究了当腔的净色散为负或为正时,输出脉冲分别具有传统孤子或增益导引孤子的特性,而当腔的净色散为零时,两种形成机制共同作用于孤子。锁模脉冲的特性依赖于腔的色散、光纤的非线性效应、增益饱和与增益色散间的相互作用与竞争。There exist two distinctive types of soliton shaping mechanism in the mode-locked fiber lasers,one is the interaction between the fiber nonlinear effect and the cavity dispersion,and the other one is that caused by the laser gain saturation and gain dispersion.We show experimentally that when the net cavity group-velocity dispersion（GVD） is large negative or positive,it exhibits the features of fiber laser constructed by purely negative or positive components,respectively.Furthermore,we demonstrate that two types of soliton formation mechanisms simultaneously act on one mode-locked pulse as the fiber laser operates in the vicinity of zero net cavity GVD.The features of mode-locked pulse depending on the interaction and competition of cavity dispersion,fiber nonlinearity,laser gain saturation and gain dispersion.

关 键 词：孤子 色散管理 光纤激光器 锁模 

分 类 号：TN253[电子电信—物理电子学]