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A highly precise FBG sensor interrogation system with wavemeter calibration

机译：具有波表校准功能的高精度FBG传感器询问系统

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摘要

Fiber Bragg grating (FBG) demodulators based on tunable lasers have been extensively applied in many fields. However, the tunable lasers can hardly avoid wavelength nonlinear tuning. Such problems and unexpected wavelength fluctuations may cause serious measurement errors. In this study, we propose a wavelength calibration scheme to solve this problem by incorporating a magneto-optic wavemeter into the interrogation system. We present experimental verification of real-time wavelength calibration of tunable lasers and measurement corrections. In the temperature measurement demonstrations, the experimental results show that the FBG interrogation accuracy was raised from +/- 3 pm to +/- 1 pm, and better long-term stability was achieved, corresponding to the temperature accuracy of +/- 0.1 degrees C.
机译：基于可调谐激光器的光纤布拉格光栅（FBG）解调器已广泛应用于许多领域。但是，可调谐激光器几乎不能避免波长非线性调谐。此类问题和意外的波长波动可能会导致严重的测量误差。在这项研究中，我们提出了一种波长校准方案来解决此问题，方法是将磁光波表纳入询问系统。我们目前对可调激光器的实时波长校准和测量校正进行实验验证。在温度测量演示中，实验结果表明，FBG的询问精度从+/- 3 pm提高到+/- 1 pm，并获得了更好的长期稳定性，相当于+/- 0.1度的温度精度。 C。

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  • 来源
    《Optical fiber technology》 |2019年第3期|207-212|共6页
  • 作者

    Li Yi; Lu Bilun; Ren Lianfeng; Chen Huangguan; Qiu Yanqing; Mao Bangning; Zhou Pengwei; Zhao Chunliu; Dong Xinyong;

  • 作者单位

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, Peoples R China;

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, Peoples R China;

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, Peoples R China;

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, Peoples R China;

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, Peoples R China;

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, Peoples R China;

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, Peoples R China;

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, Peoples R China;

    China Jiliang Univ, Coll Opt & Elect Technol, Hangzhou, Zhejiang, 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

    FBG demodulator; Tunable laser; Magneto-optic wavemeter;

    机译：FBG解调器;可调激光;磁光波形;

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