Acta Photonica Sinica, Volume. 53, Issue 5, 0553110(2024)

High Sensitivity Micro Fiber Fabry Perot Pressure Sensor Based on Silicon MEMS Technology

Wenhao LI, Pinggang JIA, Jun WANG, Bo XUE, Shun WAN, Kaiyao HOU, and Jijun XIONG*
Author Affiliations
  • State Key Laboratory of Dynamic Measurement Technology,North University of China,Taiyuan 030051,China
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    Figures & Tables(10)
    Schematic of sensor structure
    Numerical simulation of the relationship between sensitive membrane thickness and sensor pressure range and sensitivity
    Process flow diagram of pressure sensor production
    Sensor head and fiber optic integration
    Fiber optic Fabry Perot demodulation system based on Fiso
    Schematic diagram of sensor air pressure performance testing
    Sensor pressure test results
    Results of pressure sensing experiments at different temperatures
    • Table 1. SOI specific parameters

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      Table 1. SOI specific parameters

      Silicon-on-insulatorDevice layerOxide layerHandle layer
      OrientationN<1-0-0>--N<1-0-0>
      Thickness/μm202400
      Diameter /mm4''4''4''
      Elastic modulus/GPa169.571.7169.5
      Poisson's ratio0.2730.170.273
    • Table 2. Structural parameters of the pressure sensor

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      Table 2. Structural parameters of the pressure sensor

      PerformanceSymbolValue
      Diaphragm radius/μmr175
      Diaphragm thickness/μmh4
      Sensor diameter/μmd400
      Sensor length/μml220
      Sensor pressure range/kPaP0~50
      Sensor sensitivity/(nm·kPa-1S20
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    Wenhao LI, Pinggang JIA, Jun WANG, Bo XUE, Shun WAN, Kaiyao HOU, Jijun XIONG. High Sensitivity Micro Fiber Fabry Perot Pressure Sensor Based on Silicon MEMS Technology[J]. Acta Photonica Sinica, 2024, 53(5): 0553110

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    Paper Information

    Category: Special Issue for Microcavity Photonics

    Received: Jan. 20, 2024

    Accepted: Mar. 18, 2024

    Published Online: Jun. 20, 2024

    The Author Email: Jijun XIONG (xiongjijun@nuc.edu.cn)

    DOI:10.3788/gzxb20245305.0553110

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