物理学报Issue(6)：1-8,8.DOI:10.7498/aps.64.064212
低差分模式时延少模光纤的有限元分析及设计∗
Finite element analysis and design of few mo de fib er with low differential mo de delay
摘要
Abstract
Two different types of few mode fibers (FMFs) are considered: a graded-core with a cladding FMF and a multistep- 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 psm1. Under the condition of supporting two modes, a multi-step-index FMF is designed. The DMD of LP11 is 0.185 psm1. 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Key words
mode division multiplexing/few mode fiber/differential mode delay引用本文复制引用
姜珊珊,刘艳,邢尔军..低差分模式时延少模光纤的有限元分析及设计∗[J].物理学报,2015,(6):1-8,8.基金项目
北京高等学校青年英才计划项目(批准号：YETP0530)和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 Project (Grant No. YETP0530), and the Fundamental Research Funds for the Central Universities of Ministry of Education of China (Grant No.2013JBM005) （批准号：YETP0530）
