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保偏光子晶体光纤模间干涉的研究

Modular Interference of Polarization Maintaining Photonic Crystal Fiber

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摘要

针对椭圆芯保偏光纤模间干涉灵敏度和温度稳定性相对较低的缺点,本文提出了采用保偏光子晶体光纤 (PM-PCF)来设计模间干涉光纤传感器的方案。对一种保偏光子晶体光纤的模间干涉特性进行了仿真研究,分析了 PM-PCF的两个低阶模式 LP01模和 LP11偶模的传输特性,得到了相对有效折射率与波长的关系以及模间相位差同干涉输出光强分布形式的关系。通过实验研究了两个模式之间干涉模斑的远场图样,实验结果表明保偏光子晶体光纤的模间干涉在受到外界应力作用时会发生干涉输出边瓣输出能量强度交替现象,可以用来设计新型的应力传感器。

Abstract

To improve the modular interference sensitivity and temperature stability, a Polarization Maintaining Photonic Crystal Fiber (PM-PCF) was used to design the modular interference sensors. The modular interference in a PM-PCF was investigated, and the relationship between phase difference of LP01 and LP11 even mode and interference output intensity distribution was given. The relationship plot of relative effective refractive index and wavelength was got. An experiment was set up to demonstrate the intensity distribution of far field interference output from the PM-PCF. The experiment results show that the modular interference output lodes’ intensity of PM-PCF will exchange with each other when strain is applied on the PM-PCF. This phenomenon can be adapted for designing novel optic-fiber strain sensors.

Newport宣传-MKS新实验室计划
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中图分类号:TN253

DOI:10.3969/j.issn.1003-501x.2011.09.012

所属栏目:波导光学与光纤技术

基金项目:国家自然科学基金 (60907033);河北省自然科学基金 (E2009000373);秦皇岛市科学技术研究与发展计划 (201001A053)资助项目

收稿日期:2011-06-07

修改稿日期:2011-07-01

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作者单位    点击查看

芦鑫:燕山大学信息科学与工程学院,河北秦皇岛 066004
毕卫红:燕山大学信息科学与工程学院,河北秦皇岛 066004
麻硕:燕山大学信息科学与工程学院,河北秦皇岛 066004
刘丰:燕山大学信息科学与工程学院,河北秦皇岛 066004

联系人作者:芦鑫(luxin@ysu.edu.cn)

备注:芦鑫(1977-),男(汉族),黑龙江哈尔滨人。讲师,博士研究生,主要研究光纤传感。

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引用该论文

LU Xin,BI Wei-hong,MA Shuo,LIU Feng. Modular Interference of Polarization Maintaining Photonic Crystal Fiber[J]. Opto-Electronic Engineering, 2011, 38(9): 60-64

芦鑫,毕卫红,麻硕,刘丰. 保偏光子晶体光纤模间干涉的研究[J]. 光电工程, 2011, 38(9): 60-64

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