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熔融拉锥型全光纤多模式复用器/解复用器研究

Research on Fused Taper All Fiber Multi-Mode Multiplexer/De-Multiplexer

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摘要

提出了一种基于并联结构的多模式复用器/解复用器。该多模式复用器/解复用器由一根少模光纤和两根单模光纤构成。根据有效折射率匹配原则确定了光纤参数,仿真分析了不同芯间距对多模式复用器/解复用器性能的影响, 得出最佳芯间距。仿真分析了该多模式复用器/解复用器对应的工作波长带宽。结果表明: 该多模式复用器/解复用器不需要结合模式转换器即可实现LP01、LP11和LP02三种模式的复用, 最佳耦合区长度为4530 μm, 工作波长带宽可达60 nm。

Abstract

We design a multi-mode multiplexer/de-multiplexer based on parallel mode couplers. The multi-mode multiplexer/de-multiplexer consists of two single mode fibers and a few-mode fiber. According to the effective refractive index matching principle, the parameters of fiber are determined. The influence of different core distances on the performance of multi-mode multiplexer/de-multiplexer is analyzed, and the optimum core distance is determined. The working wavelength bandwidth corresponding to the multi-mode multiplexer/de-multiplexer is analyzed. Simulation results show that the multi-mode multiplexer/de-multiplexer can achieve the multiplexing of LP01, LP11 and LP02 modes without the need of a mode converter, the optimal coupling length is 4530 μm, and the wavelength bandwidth is 60 nm.

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中图分类号:TN253

DOI:10.3788/cjl201845.0706002

所属栏目:光纤光学与光通信

基金项目:国家自然科学基金青年基金(61107075)

收稿日期:2018-01-31

修改稿日期:2018-02-28

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陆少凡:上海大学特种光纤与光接入网省部共建重点实验室, 上海 200072
肖悦娱:上海大学特种光纤与光接入网省部共建重点实验室, 上海 200072
蒋晓勇:上海大学特种光纤与光接入网省部共建重点实验室, 上海 200072

联系人作者:肖悦娱(xyy@staff.shu.edu.cn)

备注:陆少凡(1992-), 女, 硕士研究生, 主要从事全光纤多模式复用器/解复用器方面的研究。E-mail: lushaofansonia@foxmail.com

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引用该论文

Lu Shaofan,Xiao Yueyu,Jiang Xiaoyong. Research on Fused Taper All Fiber Multi-Mode Multiplexer/De-Multiplexer[J]. Chinese Journal of Lasers, 2018, 45(7): 0706002

陆少凡,肖悦娱,蒋晓勇. 熔融拉锥型全光纤多模式复用器/解复用器研究[J]. 中国激光, 2018, 45(7): 0706002

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