单模-空芯-单模光纤微结构应变传感特性研究  

Research on the Strain Sensing Characteristics of Single Mode-Hollow Core-Single Mode Optical Fiber Microstructure

作　　者：王磊[1,2] 张钰民 姚霁峰 骆飞[1,2] 祝连庆[1,2] WANG Lei;ZHANG Yumin;YAO Jifeng;LUO Fei;ZHU Lianqing(Beijing Engineering Research Center of Optoelectronic Information and Instruments,Beijing Information Science&Technol.University,Beijing 100192,CHN;Beijing Laboratory of Optical Fiber Sensing and System,Beijing Information Science&Technol.University,Beijing 100016,CHN;Guangzhou Nansha Intell.Photon.Sens.Research Institute,Guangzhou 511462,CHN)

机构地区：[1]北京信息科技大学光电测试技术及仪器教育部重点实验室,北京100192 [2]北京信息科技大学光纤传感与系统北京实验室,北京100016 [3]广州南沙光子感知技术研究院,广州511462

出　　处：《半导体光电》2024年第4期515-522,共8页Semiconductor Optoelectronics

基　　金：北京学者计划研究项目(BJXZ2021-012-00046)。

摘　　要：设计了一种单模-空芯-单模光纤微结构应变传感器,利用光束传播法进行仿真分析,建立了波长-应变关系模型,并对其应变特性、温度特性进行实验研究。实验结果表明,在0~340με范围内的拉伸应变灵敏度和-340~0με范围内的压缩应变灵敏度分别高达-4.19和-4.26 pm/με,线性度分别为0.9971和0.9981;在20~70℃范围内的温度灵敏度为9.6 pm/℃,线性度达到0.9909。该传感器制作简单且具有较高的应变灵敏度,可以实现应变测量。A single mode-hollow core-single mode(SHS)fiber microstructure strain sensor was proposed.A wavelength strain relationship model was established using the beam propagation method,and the strain and temperature characteristics of the SHS were experimentally studied.The experimental results showed that the tensile strain sensitivity in the range of 0~340μεand compressive strain sensitivity in the range of-340~0μεwere as high as-4.19 pm/μεand-4.26 pm/με,respectively,with linearity values of 0.9971 and 0.9981,respectively.In the range of 20~70℃,the temperature sensitivity was 9.6 pm/℃,and the linearity reached 0.9909.This sensor is simple to make and has a high strain sensitivity.

关 键 词：空芯光纤 多模干涉 应变传感器 灵敏度 光纤传感 

分 类 号：TN253[电子电信—物理电子学]