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Acta Optica Sinica, Volume. 43, Issue 19, 1906001(2023)

Cascaded Double-Cavity Temperature Sensor Sensitized by Polydimethylsiloxane

Yuqiang Yang1,2,4, Jiale Gao1,4, Xiaoguang Mu3、*, Ji Wang2,4、**, Wenhu Yang1,4, Yitong Li2,4, and Chuhong Wang4
Author Affiliations
  • 1Shenzhen Institute of Guangdong Ocean University, Shenzhen 518120, Guangdong , China
  • 2Guangdong Provincial Engineering Research Center for Ship Intelligence and Safety, Guangdong Ocean University, Zhanjiang 524088, Guangdong , China
  • 3College of Mechanical Engineering, Guangdong Ocean University, Zhanjiang 524088, Guangdong , China
  • 4Research Center of Guangdong Smart Oceans Sensor Networks and Equipment Engineering, Guangdong Ocean University, Zhanjiang 524088, Guangdong , China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (10)
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    References (27)
    Cited By (5)
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    Figures & Tables(10)
    Schematic diagram of proposed sensor

    Fig. 1. Schematic diagram of proposed sensor

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    Simulation results of interference spectra of PDMS cavity and air cavity before and after cascading. (a) Interference spectrum of single PDMS cavity; (b) interference spectrum of single air cavity; (c) interference spectrum of cascaded two cavities

    Fig. 2. Simulation results of interference spectra of PDMS cavity and air cavity before and after cascading. (a) Interference spectrum of single PDMS cavity; (b) interference spectrum of single air cavity; (c) interference spectrum of cascaded two cavities

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    Interference spectrum shift with temperature increasing from 40 ℃ to 41 ℃. (a) Single PDMS cavity; (b) single air cavity; (c) cascaded two cavities

    Fig. 3. Interference spectrum shift with temperature increasing from 40 ℃ to 41 ℃. (a) Single PDMS cavity; (b) single air cavity; (c) cascaded two cavities

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    Micrograph of PDMS cavity. (a) Micrograph of PDMS cavity before packaging; (b) micrograph of PDMS cavity and air cavity after packaging

    Fig. 4. Micrograph of PDMS cavity. (a) Micrograph of PDMS cavity before packaging; (b) micrograph of PDMS cavity and air cavity after packaging

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    Interference spectra of PDMS cavity under different temperatures and peak wavelength of PDMS cavity versus temperature. (a) Interference spectra of PDMS cavity; (b) curve of peak wavelength of interference spectra of PDMS cavity versus temperature

    Fig. 5. Interference spectra of PDMS cavity under different temperatures and peak wavelength of PDMS cavity versus temperature. (a) Interference spectra of PDMS cavity; (b) curve of peak wavelength of interference spectra of PDMS cavity versus temperature

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    Temperature sensor device diagram

    Fig. 6. Temperature sensor device diagram

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    Interference spectrum of cascaded two cavities

    Fig. 7. Interference spectrum of cascaded two cavities

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    Interference spectral envelopes under different temperatures

    Fig. 8. Interference spectral envelopes under different temperatures

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    Peak wavelength shift of interference spectral envelope with temperature rising and falling

    Fig. 9. Peak wavelength shift of interference spectral envelope with temperature rising and falling

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    • Table 1. Comparison of temperature sensitivities of different fiber sensors

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      Table 1. Comparison of temperature sensitivities of different fiber sensors

      Sensor configurationRange /℃Sensitivity /（nm·℃-1）Size /μmReference
      Parallel air and PDMS FPIs46-5017.758~140［22］
      Cascaded air and PDMS FPIs40-563.980~600［23］
      Two parallel PDMS FPIs50-60-14.600~200［24］
      Parallel two SIs31-3578.984~2100000［26］
      Two cascaded all-fiber FPIs250-10501.109~8000［27］
      Using an air-cavity with PDMS at both ends40-42-21.100~1000This work
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    Yuqiang Yang, Jiale Gao, Xiaoguang Mu, Ji Wang, Wenhu Yang, Yitong Li, Chuhong Wang. Cascaded Double-Cavity Temperature Sensor Sensitized by Polydimethylsiloxane[J]. Acta Optica Sinica, 2023, 43(19): 1906001

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jan. 4, 2023

    Accepted: Apr. 13, 2023

    Published Online: Sep. 28, 2023

    The Author Email: Xiaoguang Mu (xd_gdou@sina.com), Ji Wang (13902576499@163.com)

    DOI:10.3788/AOS230442

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology