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Simultaneous measurement of strain and temperature using Fabry–Pérot interferometry and antiresonant mechanism in a hollow-core fiber [Early Posting]

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摘要

A fiber optic sensor for the simultaneous measurement of strain and temperature is proposed and experimentally demonstrated based on Fabry–Pérot (FP) interference and the antiresonant (AR) mechanism. The sensor was implemented using a single-mode fiber (SMF)–hollow-core fiber (HCF)–SMF structure. A temperature sensitivity of 21.11 pm/°C was achieved by tracing the troughs of the envelope caused by the AR mechanism and a strain sensitivity of 2 pm/με was achieved by detecting the fine fringes caused by the FP cavity. The results indicate that the sensor is stable and reliable.

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作者单位:

    Harbin Inst Technol
    Harbin Inst Technol
    Harbin Inst Technol
    Harbin Inst Technol
    Harbin Inst Technol
    深圳 西丽深圳大学城 哈工大校区C102A 哈尔滨工业大学深圳研究生院 激光信息技术研究中心

引用该论文

He Chong,Zhou Cheng,Zhou Qian,Xie Shiyi,Tian Jiajun,Yao Yong. Simultaneous measurement of strain and temperature using Fabry–Pérot interferometry and antiresonant mechanism in a hollow-core fiber[J].Chinese Optics Letters,2021,19(4):04.