双包层和三包层椭圆光纤保偏特性比较  

Polarization Characteristics Comparison between Double and Triple Clad Elliptical Fibers

作　　者：聂秋华[1] 曾兴斌[1] 董建峰[1] 

机构地区：[1]宁波大学

出　　处：《通信学报》1997年第2期83-88,共6页Journal on Communications

基　　金：浙江省教委科研基金

摘　　要：本文利用高斯近似法分析了三包层椭圆光纤的保偏特性，用曲线图的方式给出了保偏特性随长短轴比值、包层与纤芯长轴比值和折射率差变化的趋势。The scalar variational analysis based on Gaussian approximation of fundamental mode is applied to triple clad elliptical fibers with two inner claddings.The polarization properties varied with the ratio of major axis to minor axis,the ratio of the inner cladding major axis to the core major axis and the rfractive index differences are studied.The differences between triple clad and double clad elliptical fibers are also examined.

关 键 词：保偏光纤 椭圆多包层 高斯近似 光纤通信 

分 类 号：TN929.11[电子电信—通信与信息系统]