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Strongly coupled multicore fiber with FBGs for multipoint and multiparameter sensing

机译：具有FBG的强耦合的多芯光纤，用于多点和多射点感测

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摘要

A compact optical fiber sensor by embedding fiber Bragg gratings (FBGs) in strongly coupled multicore fiber (SCMCF) is proposed for multipoint and multiparameter sensing. To build the device, two FBGs with different peak wavelengths were inscribed in a segment of SCMCF. Then one end of the SCMCF was fusion spliced to a single-mode fiber (SMF) and the other end of the SCMCF was cleaved. In the SMF-SCMCF structure, two supermodes are excited, as a result, the reflection spectrum exhibits a sinusoidal pattern with two sharp peaks. The wavelength position of the FBGs and the supermode coupler can be extracted simultaneously. Two distinct FBGs inscribed in different positions of the SCMCF were used to demonstrate quasi-distributed multipoint sensing in the proposed structure. To the best of our knowledge, this is the first demonstration of an optical fiber sensor that combines FBGs with SCMCF. The sensor here proposed has the advantage of compact size, low-cost, good mechanical strength and ease of interrogation.
机译：提出了一种紧凑的光纤传感器，通过将光纤布拉格光栅（FBG）嵌入强耦合的多芯光纤（SCMCF）中，用于多点和多点感测。为了构建设备，在SCMCF的一段中刻有两个具有不同峰值波长的FBG。然后，SCMCF的一端融合到单模光纤（SMF）和SCMCF的另一端被切割。在SMF-SCMCF结构中，两种超级码被激发，结果，反射光谱表现出具有两个尖峰的正弦图案。可以同时提取FBG和超模耦合器的波长位置。在SCMCF的不同位置刻有两个不同的FBG，用于证明所提出的结构中的准分布式多点感应。据我们所知，这是一个与SCMCF相结合的光纤传感器的首次演示。这里的传感器提出的优点是尺寸紧凑，成本低，机械强度良好，易于审讯。

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  • 来源
    《Optical fiber technology》 |2020年第9期|102315.1-102315.7|共7页
  • 作者

    Liu Zhiming; Zheng Di; Madrigal Javier; Villatoro Joel; Antonio-Lopez Enrique; Schuelzgen Axel; Amezcua-Correa Rodrigo; Zou Xihua; Pan Wei; Sales Salvador;

  • 作者单位

    Southwest Jiaotong Univ Sch Informat Sci & Technol Ctr Informat Photon & Commun Chengdu 610031 Peoples R China;

    Southwest Jiaotong Univ Sch Informat Sci & Technol Ctr Informat Photon & Commun Chengdu 610031 Peoples R China;

    Univ Politecn Valencia ITEAM Res Inst Photon Res Labs Camino Vera S-N Valencia 46022 Spain;

    Univ Basque Country UPV EHU Dept Commun Engn Plaza Torres Quevedo 1 E-48013 Bilbao Spain|Basque Fdn Sci Ikerbasque E-48011 Bilbao Spain;

    Univ Cent Florida CREOL Coll Opt & Photon Orlando FL 32816 USA;

    Univ Cent Florida CREOL Coll Opt & Photon Orlando FL 32816 USA;

    Univ Cent Florida CREOL Coll Opt & Photon Orlando FL 32816 USA;

    Southwest Jiaotong Univ Sch Informat Sci & Technol Ctr Informat Photon & Commun Chengdu 610031 Peoples R China;

    Southwest Jiaotong Univ Sch Informat Sci & Technol Ctr Informat Photon & Commun Chengdu 610031 Peoples R China;

    Univ Politecn Valencia ITEAM Res Inst Photon Res Labs Camino Vera S-N Valencia 46022 Spain;

  • 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

    Optical fiber sensor; Multicore optical fiber; Fiber Bragg gratings;

    机译：光纤传感器;多核光纤;光纤布拉格光栅;

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