评价研究光纤中调制不稳定性的扰动表达形式  

On expressions of perturbations used to study mondulation instability in optical fibers

作　　者：林晓东[1] 高松[1] 陈建国[1] 陆丹[1] 

机构地区：[1]四川大学光电系,成都610064

出　　处：《激光杂志》2004年第6期37-38,共2页Laser Journal

摘　　要：对描述光纤中与强背景波一起传播的扰动场的各种数学表达方式及其得出的结果进行了分析和对比。研究表明 ,正确表达方式应该引出丰富得多的扰动演化特征 ,而由文献中常见的表达方式引出的只是扰动演化的渐进行为。讨论了前人表达方式的缺欠 。Investigations have been made on various representations adoped to describe the perturbation fields co-propagating with strong CW radiations inside optical fibers,and comparisons on results extracted by using different representations.It has been pointed out that following the application of the correct representations much more complicated evolution characteristics should show up,while the results derived by using the representations commonly encountered in literatures only give the asymptotic behaviors of perturbations.In addition,analysis has also been made on the oversights of the previously reported representations and on the reason why they may also lead to some correct conclusion.

关 键 词：扰动 调制不稳定性 增益系数 

分 类 号：O437[机械工程—光学工程]