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Chinese Journal of Lasers, Volume. 44, Issue 8, 810001(2017)

Tapered Double-Cladding Fiber Temperature Sensor Based on Surface Temperature Sensitive Thin-Film

Fu Xinghu*, Zhang Jiangpeng, Fang Yicheng, Wang Xingguo, Chen Cheng, Wang Siwen, Fu Guangwei, and Bi Weihong
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    Figures&Tables (14)
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    References (18)
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    Sensing probe structure of TDCF temperature sensor

    Fig. 1. Sensing probe structure of TDCF temperature sensor

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    (a) Cross section of the DCF; (b) refractive index profile of the DCF

    Fig. 2. (a) Cross section of the DCF; (b) refractive index profile of the DCF

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    Mode field distribution of the DCF. (a) LP01;(b) LP11;(c) LP21;(d) LP02

    Fig. 3. Mode field distribution of the DCF. (a) LP01;(b) LP11;(c) LP21;(d) LP02

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    Transmission spectra of the sensors with different TDCF lengths

    Fig. 4. Transmission spectra of the sensors with different TDCF lengths

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    Schematic of temperature sensing experiment system

    Fig. 5. Schematic of temperature sensing experiment system

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    Transmission spectra of the sensor at different temperatures

    Fig. 6. Transmission spectra of the sensor at different temperatures

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    Relationship between wavelength shift and temperature changing

    Fig. 7. Relationship between wavelength shift and temperature changing

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    Experimental results after improvement. (a) Temperature rise; (b) temperature drop

    Fig. 8. Experimental results after improvement. (a) Temperature rise; (b) temperature drop

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    (a) Transmission spectra of the sensor without temperature sensitive material coating at different temperatures; (b) relationship between wavelength shift and temperature changing

    Fig. 9. (a) Transmission spectra of the sensor without temperature sensitive material coating at different temperatures; (b) relationship between wavelength shift and temperature changing

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    Diameters of fiber tapers with different taper lengths. (a) Length of TDCF is 16 mm; (b) length of TDCF is 14 mm

    Fig. 10. Diameters of fiber tapers with different taper lengths. (a) Length of TDCF is 16 mm; (b) length of TDCF is 14 mm

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    Transmission spectra of the sensor at different temperatures

    Fig. 11. Transmission spectra of the sensor at different temperatures

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    Relationship between wavelength shift and temperature changing

    Fig. 12. Relationship between wavelength shift and temperature changing

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    FFT frequency spectrum of transmission spectrum

    Fig. 13. FFT frequency spectrum of transmission spectrum

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    • Table 1. Temperature sensitivity of temperature sensors with different fiber types

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      Table 1. Temperature sensitivity of temperature sensors with different fiber types

      SensorSensitivity /(pm·℃-1)
      TDCF sensor coating temperature sensitive material-1296.78
      Triple cladding quartz specialty fiber sensor[16]73.74
      PbO-GeO2-SiO2 fiber sensor[17]17.30
      Core-offset splicing photonic crystal fiber sensor[18]1.63
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    Fu Xinghu, Zhang Jiangpeng, Fang Yicheng, Wang Xingguo, Chen Cheng, Wang Siwen, Fu Guangwei, Bi Weihong. Tapered Double-Cladding Fiber Temperature Sensor Based on Surface Temperature Sensitive Thin-Film[J]. Chinese Journal of Lasers, 2017, 44(8): 810001

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: Mar. 16, 2017

    Accepted: --

    Published Online: Sep. 13, 2017

    The Author Email: Xinghu Fu (fuxinghu@ysu.edu.cn)

    DOI:10.3788/CJL201744.0810001

    Topics

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