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首页> 外文期刊>Journal of intelligent material systems and structures >The influences of polarization-maintaining fiber length and sensing length on axial strain sensitivity of polarization-maintaining fiber loop mirror
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The influences of polarization-maintaining fiber length and sensing length on axial strain sensitivity of polarization-maintaining fiber loop mirror

机译：保偏光纤长度和传感长度对保偏光纤环形镜轴向应变灵敏度的影响

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摘要

It is difficult to make sure that the spliced polarization-maintaining fiber length is the same in every fabricating polarization-maintaining fiber loop mirror sensor, and it is also difficult to make sure that sensing length is the same in every experiment. To find out how these uncertain factors influence the axial strain sensitivity of polarization-maintaining fiber loop mirror, we perform the research on the influences of polarization-maintaining fiber length and sensing length on axial strain sensitivity. In this article, a theoretical model for axial strain sensitivity of polarization-maintaining fiber loop mirror is deduced first. By analyzing the theoretical model, we find that the axial strain sensitivity is unrelated to polarization-maintaining fiber length and sensing length. Then, we experimentally investigate the influences of polarization-maintaining fiber length and sensing length on axial strain sensitivity of polarization-maintaining fiber loop mirror. The axial strain sensitivities in the experiments are almost the same for different polarization-maintaining fiber lengths and different sensing lengths. The experimental results agree with the theoretical ones. The results can provide help for fabricating and applying polarization-maintaining fiber loop mirror sensor. The results can be applied in the temperature, displacement, and vibration sensors of polarization-maintaining fiber loop mirror and can also be applied in photonic crystal fiber loop mirror sensor.
机译：在每个制造的保偏光纤环镜传感器中，难以确保拼接的保偏光纤长度相同，并且在每个实验中也都难以确保感测长度相同。为了弄清这些不确定因素如何影响保偏光纤环形镜的轴向应变灵敏度，我们对保偏光纤长度和感测长度对轴向应变灵敏度的影响进行了研究。本文首先推导了保偏光纤环形镜轴向应变灵敏度的理论模型。通过分析理论模型，我们发现轴向应变灵敏度与保偏光纤长度和感测长度无关。然后，我们通过实验研究了保偏光纤长度和感测长度对保偏光纤环形镜轴向应变灵敏度的影响。对于不同的保偏光纤长度和不同的感测长度，实验中的轴向应变敏感性几乎相同。实验结果与理论吻合。研究结果可为制造和应用保偏光纤环路镜传感器提供帮助。该结果可应用于保偏光纤环形镜的温度，位移和振动传感器，也可应用于光子晶体光纤环形镜传感器。

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  • 作者

    Ying Jiang; Jie Zeng; Dakai Liang; Xiaoyu Ni;

  • 作者单位

    State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Jiangsu, Nanjing 210016, China,Institute of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, China;

    State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    State Key Laboratory of Mechanics and Control of Mechanical Structures, Nanjing University of Aeronautics and Astronautics, Nanjing, China;

    Institute of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Strain sensitivity; polarization-maintaining fiber; fiber loop mirror; structural health monitoring;

    机译：应变敏感性保偏光纤;光纤环镜结构健康监测;

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