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Simultaneous strain and temperature measurement using a no-core fiber-based modal interferometer with embedded fiber Bragg grating

机译:使用无芯光纤模态干涉仪和嵌入式光纤布拉格光栅同时测量应变和温度

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摘要

A simple fiber-optic sensor based on a fiber Bragg grating (FBG) embedded in a fiber modal interferometer (MI) for simultaneous measurements of temperature and strain is proposed and experimentally demonstrated. The fiber MI is constructed by splicing two sections of the no-core fiber (NCF) between the single-mode fibers. Due to the different responses of the NCF-based MI and the FBG to the same temperature and strain, the discrimination between temperature and strain can be easily achieved. For a 0.01 -nm wavelength resolution, the resolution of the sensor is 0.216℃ and 6.75 με in temperature and strain, respectively.
机译:提出了一种基于光纤布拉格光栅(FBG)的简单光纤传感器,该传感器嵌入在光纤模态干涉仪(MI)中,用于同时测量温度和应变。光纤MI是通过在单模光纤之间拼接两部分无芯光纤(NCF)构成的。由于基于NCF的MI和FBG对相同温度和应变的响应不同,因此可以轻松实现温度和应变的区分。对于0.01 nm的波长分辨率,传感器的分辨率在温度和应变上分别为0.216℃和6.75με。

著录项

  • 来源
    《Optical engineering》 |2014年第8期|087105.1-087105.4|共4页
  • 作者单位

    Beijing Jiaotong University, Institute of Lightwave Technology, Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing 100044, China;

    Beijing Jiaotong University, Institute of Lightwave Technology, Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing 100044, China;

    Beijing Jiaotong University, Institute of Lightwave Technology, Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing 100044, China;

    Beijing Jiaotong University, Institute of Lightwave Technology, Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing 100044, China;

    Beijing Jiaotong University, Institute of Lightwave Technology, Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing 100044, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    no-core fiber; fiber-optic sensor; fiber Bragg grating; modal interferometer;

    机译:无芯光纤光纤传感器布拉格光纤光栅模态干涉仪;

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