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Laser & Optoelectronics Progress, Volume. 56, Issue 3, 030604(2019)

A Wavelength Demodulation System for Fiber Bragg Grating Array

Xincan Lou1,2, Fenghuan Hao1,2、*, Pengfei Liu1,2, and Bo Li1,2
Author Affiliations
  • 1 715th Research Institute of China Shipbuilding Industry Corporation, Hangzhou, Zhejiang 310023, China
  • 2 Science and Technology on Sonar Laboratory, Hangzhou Applied Acoustics Research Institute, Hangzhou, Zhejiang 310023, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (8)
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    References (13)
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    Figures & Tables(8)
    Schematic of FBG array demodulation system

    Fig. 1. Schematic of FBG array demodulation system

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    Schematic of FBG array

    Fig. 2. Schematic of FBG array

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    Theoretical model of time division and wavelength scanning

    Fig. 3. Theoretical model of time division and wavelength scanning

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    Spectra. (a) Subarray-1; (b) subarray-2; (c) subarray-3; (d) subarray-4

    Fig. 4. Spectra. (a) Subarray-1; (b) subarray-2; (c) subarray-3; (d) subarray-4

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    Temperature response of FBG temperature sensors in each subarray

    Fig. 5. Temperature response of FBG temperature sensors in each subarray

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    Demodulated wavelength of FBG temperature sensor. (a) FBG-1; (b) FBG-2; (c) FBG-3; (d) FBG-4

    Fig. 6. Demodulated wavelength of FBG temperature sensor. (a) FBG-1; (b) FBG-2; (c) FBG-3; (d) FBG-4

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    Wavelength demodulation results at 45 ℃. (a) FBG-1; (b) FBG-2; (c) FBG-3; (d) FBG-4

    Fig. 7. Wavelength demodulation results at 45 ℃. (a) FBG-1; (b) FBG-2; (c) FBG-3; (d) FBG-4

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    • Table 1. Temperature measurement results of FBG array demodulation system℃

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      Table 1. Temperature measurement results of FBG array demodulation system℃

      StandardtemperatureFBG-1 measuedtemperatureFBG-2 measuedtemperatureFBG-3 measuedtemperatureFBG-4 measuedtemperature
      7.948.028.097.997.98
      17.9417.9317.8518.0417.91
      27.9727.7327.7527.8327.74
      37.9837.9438.1537.9538.09
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    Xincan Lou, Fenghuan Hao, Pengfei Liu, Bo Li. A Wavelength Demodulation System for Fiber Bragg Grating Array[J]. Laser & Optoelectronics Progress, 2019, 56(3): 030604

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Jul. 23, 2018

    Accepted: Aug. 29, 2018

    Published Online: Jul. 31, 2019

    The Author Email: Fenghuan Hao (hfh05@mails.tsinghua.edu.cn)

    DOI:10.3788/LOP56.030604

    Topics

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