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首页> 外文期刊>Optics Letters >Bragg labeled wavelength calibrates interferometric sensors in hollow core fiber
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Bragg labeled wavelength calibrates interferometric sensors in hollow core fiber

机译：布拉格标记的波长校准中空芯纤维中的干涉传感器

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摘要

A Bragg labeled wavelength (BLW) employed to the sensitivity calibration in an interference pattern has been proposed and experimentally demonstrated. According to the critical condition of Fabry-Perot (FP) interference and the antiresonant (AR) effect, the length of hollow core fiber (HCF) is artificially controlled to form a FP microcavity by collapsed fusion splicing. Dual-spectral features of the BLW and inline multimode interference (IMMI) dominate the transmission spectrum of the collapsed Bragg HCF (BHCF). The location of the BLW remains unchanged once the air-core diameter is selected. Sensing performance is investigated to validate the calibration function of the proposed BHCF. In particular, the temperature sensitivity of the BLW and multimode interference are 12.8 pm/degrees C and 87.1 pm/degrees C, respectively, corresponding to the reference sensitivity induced by the Bragg structure and the measurement sensitivity of the IMMI. All these findings highlight the calibration of HCF-based interferometric sensors in practical applications. (C) 2019 Optical Society of America
机译：已经提出了一种用于在干涉图案中用于灵敏度校准的布拉格标记波长（BLW）并实验证明。根据法布里 - 珀罗（FP）干扰的临界条件和反谐振（AR）效应，人工控制中空芯纤维（HCF）的长度以通过塌陷的熔接剪接形成FP微腔。 BLW和内联多模干扰（IMMI）的双光谱特征主导了折叠布拉格HCF（BHCF）的透射光谱。一旦选择空气芯直径，布线的位置保持不变。调查感应性能以验证所提出的BHCF的校准功能。特别地，BLW和多模干的温度敏感性分别是12.8μm/℃和87.1μm/℃/℃，对应于由布拉格结构引起的参考灵敏度和IMMI的测量灵敏度。所有这些发现都突出了基于HCF的干涉式传感器在实际应用中的校准。 （c）2019年光学学会

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  • 来源
    《Optics Letters》 |2019年第21期|共4页
  • 作者

    Ni Wenjun; Xia Ran; Shum Perry Ping; Luo Yiyang; Zheng Yu; Lian Zhenggang;

  • 作者单位

    Nanyang Technol Univ Sch Elect &

    Elect Engn Singapore 639798 Singapore;

    Nanyang Technol Univ Sch Elect &

    Elect Engn Singapore 639798 Singapore;

    Nanyang Technol Univ Sch Elect &

    Elect Engn Singapore 639798 Singapore;

    Nanyang Technol Univ Sch Elect &

    Elect Engn Singapore 639798 Singapore;

    Nanyang Technol Univ Sch Elect &

    Elect Engn Singapore 639798 Singapore;

    Yangtze Opt Elect Co Fifth Hitech Ave Wuhan 430205 Hubei 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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