低差分模式时延少模光纤的有限元分析及设计?

摘要：

Two different types of few mode fibers (FMFs) are considered: a graded-core with a cladding FMF and a multi-step-index FMF. The characteristics of mode field distribution and the effective index are analyzed based on Comsol software. Then differential mode delay is analyzed. The structure and profile parameters are optimized in order to achieve the lowest possible differential mode delay (DMD). Under the condition of supporting four modes, a graded-core with a cladding FMF is designed. The DMD absolute values of LP11, LP21, LP02 are all below 0.015 ps·m?1. Under the condition of supporting two modes, a multi-step-index FMF is designed. The DMD of LP11 is 0.185 ps·m?1. The designed fibers have low DMD, which is suitable for mode division multiplexing.

关键词：模分复用、少模光纤、差分模式时延

分类号：TG1;TP2

资助基金：北京高等学校青年英才计划项目YETP0530;中央高校基本科研业务费专项资金批准号:2013JBM005资助的课题.* Project supported by Beijing Higher Education Young Elite Teacher ProjectGrant YETP0530;the Fundamental Research Funds for the Central Universities of Ministry of Education of ChinaGrant 2013JBM005

在线出版日期：2015-04-09（万方平台首次上网日期，不代表论文的发表时间）

页数：共1页

页码：064212-1-064212-7