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首页> 外文期刊>Optics Letters >All fiber compact bending sensor with high sensitivity based on a multimode fiber embedded chirped long-period grating
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All fiber compact bending sensor with high sensitivity based on a multimode fiber embedded chirped long-period grating

机译：所有光纤紧凑型弯曲传感器，基于多模光纤嵌入式啁啾长周期光栅的高灵敏度

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摘要

We investigated and prepared a chirped long-period grating for high sensitivity bending measurement. The novel fiber structure is composed of the multimode fiber (MMF) with fixed length and gradually longer single-mode fiber using the continuous splicing method. The powerful ability of refractive index modulation in the MMF renders the miniaturization of the sensor. The total length of the sensor is 3.45 mm. Chirped period arrangement is adopted to improve the bending sensitivity. Through numerical calculation, the chirp coefficient is determined, and the clear resonance peaks are obtained using the wavelength scanning. The experimental results of several samples show that the maximum bending sensitivity is 53.68 nm/m(-1) at 0 -1.803 m(-1). With the advantages of small size and high sensitivity, the sensor is especially suitable for bending sensing with a micro-structure. (C) 2020 Optical Society of America
机译：我们调查并制备了一个啁啾长期光栅，用于高灵敏度弯曲测量。 新颖的纤维结构由多模光纤（MMF）组成，使用连续剪接方法具有固定长度和逐渐较长的单模光纤。 MMF中折射率调制的强大能力使传感器的小型化呈现。 传感器的总长度为3.45毫米。 采用啁啾期安排来提高弯曲敏感性。 通过数值计算，确定啁啾系数，使用波长扫描获得透明的共振峰。 几个样品的实验结果表明，最大弯曲敏感性为53.68nm / m（-1），0 -1.803m（-1）。 凭借体积小，灵敏度高的优点，传感器特别适用于用微结构弯曲感测。 （c）2020美国光学学会

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  • 来源
    《Optics Letters》 |2020年第15期|共4页
  • 作者

    Zhang Shuo; Geng Tao; Niu Huiwen; Li Xiang; Yan Yunxiang; Sun Cuiting; Deng Sifan; Wang Zemin; Wang Shengjia; Yang Wenlei; Sun Weimin; Yuan Libo;

  • 作者单位

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Harbin Engn Univ Key Lab In Fiber Integrated Opt Harbin 150001 Peoples R China;

    Guilin Univ Elect Technol Photon Res Ctr Guilin 541004 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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