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首页> 外文期刊>Optical fiber technology >A cascaded fiber sensor for measuring different curvature ranges based on the cladding mode resonance in double-cladding fiber
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A cascaded fiber sensor for measuring different curvature ranges based on the cladding mode resonance in double-cladding fiber

机译：一种基于双包层光纤中包层模式共振测量不同曲率范围的级联光纤传感器

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摘要

A cascaded fiber sensor for measuring different curvature ranges based on the cladding mode resonance in double-cladding fiber is proposed. It is formed by double-cladding fiber and single-mode fiber. Based on the evanescent wave coupling principle, the cladding mode resonance phenomenon in double-cladding fiber is illustrated. The transmission spectrum with different length are also analyzed. The experimental results show that the resonance wavelength changes with the length of double-cladding fiber. When the fiber length is 22 mm, the transmission spectrum is blue-shifted as the curvature increases in minor range of 0-0.204 m(-1), the corresponding curvature sensitivity can be up to -19376.48 pm/m(-1). When the fiber length is 20 mm, the corresponding curvature sensitivity can be up to -4161.73 pm/m(-1) as the curvature increases in large range of 0-1.06 m(-1). The proposed curvature sensor has the characteristics of simple structure and high sensitivity, so it has a good application prospects in large bridges, industrial buildings and other curvature measurement situations.
机译：提出了一种基于双包层光纤的包层模共振测量不同曲率范围的级联光纤传感器。它由双包层光纤和单模光纤组成。基于the逝波耦合原理，阐述了双包层光纤中的包层模共振现象。还分析了不同长度的传输频谱。实验结果表明，共振波长随双包层光纤的长度而变化。当光纤长度为22 mm时，随着曲率在0-0.204 m（-1）的较小范围内增加，透射光谱会发生蓝移，相应的曲率灵敏度可以达到-19376.48 pm / m（-1）。当纤维长度为20 mm时，随着曲率在0-1.06 m（-1）的较大范围内增加，相应的曲率灵敏度可以高达-4161.73 pm / m（-1）。所提出的曲率传感器具有结构简单，灵敏度高的特点，在大型桥梁，工业建筑及其他曲率测量场合具有良好的应用前景。

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  • 来源
    《Optical fiber technology》 |2019年第7期|8-12|共5页
  • 作者

    Fu Xinghu; Zhang Yuepeng; Liu Fan; Fu Guangwei; Bi Weihong;

  • 作者单位

    Yanshan Univ, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Sch Informat Sci & Engn, Qinhuangdao 066004, Hebei, Peoples R China;

    Yanshan Univ, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Sch Informat Sci & Engn, Qinhuangdao 066004, Hebei, Peoples R China;

    Yanshan Univ, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Sch Informat Sci & Engn, Qinhuangdao 066004, Hebei, Peoples R China;

    Yanshan Univ, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Sch Informat Sci & Engn, Qinhuangdao 066004, Hebei, Peoples R China;

    Yanshan Univ, Key Lab Special Fiber & Fiber Sensor Hebei Prov, Sch Informat Sci & Engn, Qinhuangdao 066004, Hebei, Peoples R 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

    Fiber optics; Cladding mode resonance; Double-cladding fiber; Curvature;

    机译：光纤;包层共振;双包层光纤;曲率;

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