Acta Photonica Sinica, Volume. 52, Issue 2, 0206002(2023)

High-sensitivity Fiber-optic Humidity Sensor without Sensitizing Material Modification

Mi LI, Chengju MA*, Dongming LI, Yuebin ZHANG, Shiqian BAO, Jiasheng JIN, Yao ZHANG, Qianzhen LIU, Ming LIU, and Yixin ZHANG
Author Affiliations
  • School of Science,Xi'an Shiyou University,Xi'an 710065,China
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    Figures & Tables(8)
    Structure of sensor
    Schematic of the sensor humidity measurement system
    The spectrum of sensors
    Humidity response of sensor
    Linear fitting relationship between the temperature and wavelength when temperature ranges from 30 ℃ to 65 ℃
    Stability test of the sensor
    Repeatability test of the sensor
    • Table 1. Performance comparison of the fiber-optic humidity sensors

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      Table 1. Performance comparison of the fiber-optic humidity sensors

      TypeHumidity sensitivity materialRH range/%RHSensitivitypm/%RHRef.
      Mach-Zehnder Interferometer(MZI)Chitosan10~90119.620
      FPIGQDs-PVA13.47~81.34117.2510
      Michelson Interferometer(MI)Methylcellulose(MC)55~8513321
      Mismatching Fused Mach-Zehnder Interferometric(MFMZI)No coatingBeyond~87.5%RH166.722
      MZI and FPIGQDs-PVA27.83~76.113223
      Whispering-gallery Mode(WGM)resonatorNo coating30~905424
      Dual FPIs

      PVA

      Polydimethylsiloxane(PDMS)

      20~45

      128

      38

      25
      FPIHA and PVA35~8523326
      POF FPINo coating30~80173.36Our work
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    Mi LI, Chengju MA, Dongming LI, Yuebin ZHANG, Shiqian BAO, Jiasheng JIN, Yao ZHANG, Qianzhen LIU, Ming LIU, Yixin ZHANG. High-sensitivity Fiber-optic Humidity Sensor without Sensitizing Material Modification[J]. Acta Photonica Sinica, 2023, 52(2): 0206002

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jul. 20, 2022

    Accepted: Nov. 29, 2022

    Published Online: Mar. 28, 2023

    The Author Email: MA Chengju (chengjuma@xsyu.edu.cn)

    DOI:10.3788/gzxb20235202.0206002

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