Journals Articles Conferences News About CLP
Submit a paper Email Alert
Search
Search
Articles
Journals
News
Advanced Search
Top Searches
2D MaterialsTransformation opticsQuantum PhotonicsSmall lasersSemiconductor UV PhotonicsSupersymmetric microring laser arrays

Infrared and Laser Engineering, Volume. 51, Issue 5, 20200440(2022)

Adaptive demodulation of reflection spectrum intensity of fiber grating link

Genchao Qin1, Fanyong Meng1, Hong Li1,2, Wei Zhuang2, and Mingli Dong1,3
Author Affiliations
  • 1Key Laboratory of the Ministry of Education for Optoelectronic Measurement Technology and Instrument, Beijing University of Information Technology, Beijing 100192, China
  • 2Beijing Laboratory of Optical Fiber Sensing and Systems, Beijing University of Information Technology, Beijing 100016, China
  • 3Beijing Key Laboratory of Optoelectronic Measurement Technology, Beijing University of Information Technology, Beijing 100192, China
    • show less
    AbstractGet PDF(in Chinese)
    Figures&Tables (11)
    Equations (4)
    References (17)
    Tools
    Paper Information
    Topics
    Figures & Tables(11)
    Schematic diagram of demodulator

    Fig. 1. Schematic diagram of demodulator

    Download full size
    View in Article
    (a) Peak-seeking threshold; (b) Comparison of peak-seeking threshold

    Fig. 2. (a) Peak-seeking threshold; (b) Comparison of peak-seeking threshold

    Download full size
    View in Article
    (a) Original spectrogram; (b) Histogram of spectral data

    Fig. 3. (a) Original spectrogram; (b) Histogram of spectral data

    Download full size
    View in Article
    Experimental system of FBG demodulation

    Fig. 4. Experimental system of FBG demodulation

    Download full size
    View in Article
    Peak light intensity-exposure cycle relationship of single grating fiber

    Fig. 5. Peak light intensity-exposure cycle relationship of single grating fiber

    Download full size
    View in Article
    Peak light intensity-exposure cycle relationship of multi-grating fiber

    Fig. 6. Peak light intensity-exposure cycle relationship of multi-grating fiber

    Download full size
    View in Article
    Curve diagram of peak light of intensity-center wavelength standard deviation

    Fig. 7. Curve diagram of peak light of intensity-center wavelength standard deviation

    Download full size
    View in Article
    Adaptive demodulation spectrogram. (a) Exposure cycle/100 ns：234.4; (b) Exposure cycle/100 ns：304; (c) Exposure cycle/100 ns：503.1; (d) Exposure cycle/100 ns：659.6; (e) Exposure cycle/100 ns：967.2, (f) Exposure cycle/100 ns：2832.6; (g) Exposure cycle/100 ns：3881.2; (h) Exposure cycle/100 ns：5562.8

    Fig. 8. Adaptive demodulation spectrogram. (a) Exposure cycle/100 ns：234.4; (b) Exposure cycle/100 ns：304; (c) Exposure cycle/100 ns：503.1; (d) Exposure cycle/100 ns：659.6; (e) Exposure cycle/100 ns：967.2, (f) Exposure cycle/100 ns：2832.6; (g) Exposure cycle/100 ns：3881.2; (h) Exposure cycle/100 ns：5562.8

    Download full size
    View in Article

    • Table 1. Comparison of different fitting methods of single grating fiber peak light intensity-exposure cycle

      View table
      View in Article

      Table 1. Comparison of different fitting methods of single grating fiber peak light intensity-exposure cycle

      Fitting modeRelational expressionDetermining coefficient R2
      Exponential fittingy=1 904e0.021 6x0.754 4
      Linear fittingy=245.93x−669.76 0.999 99
      Logarithmic fittingy=10 877ln(x)−24 004 0.822 6
      Polynomial fittingy=0.004 3x2+245.19x−652.06 0.999 99
      Power function fittingy=94.961x1.204 70.987 2

    • Table 2. Linear fitting results of multi-grating fiber peak light intensity-exposure cycle

      View table
      View in Article

      Table 2. Linear fitting results of multi-grating fiber peak light intensity-exposure cycle

      Peak serial number1#2#3#4#5#
      Linear relationy=422.3x+1.944 y=260.4x+259.7 y=337.4x+62.25 y=211.7x+175.2 y=235.6x+352.8
      Determining coefficientR20.999 750.999 970.999 690.999 740.99978
      Peak serial number6#7#8#9#10#
      Linear relationy=289.6x+239.3 y=254.1x+367 y=181.3x+135.6 y=221.8x+425.3 y=195.7x+346.7
      Determining coefficient R20.999 9960.999 980.998 990.999 890.999 99

    • Table 3. Experimental results of adaptive demodulation algorithm

      View table
      View in Article

      Table 3. Experimental results of adaptive demodulation algorithm

      Adjustment orderExposure cycle/100 nsSpectral peak number for each demodulationPeak/saturation value
      1234.41#85.90%
      2304.02#89.05%
      3503.13#, 4#, 5#, 6#72.74%, 89.70%, 73.22%, 76.68%
      4659.67#, 8#, 9#88.47%, 83.36%, 79.59%
      5967.210#, 11#89.61%, 88.13%
      62 832.612#, 13#, 15#, 16#, 17#88.52%, 73.87%, 72.71%, 74.07%, 79.82%
      73 881.214#, 18#, 19#, 20#88.75%, 85.88%, 76.35%, 76.28%
      85 562.821#, 22#87.52%, 75.02%
    Tools

    Get Citation

    Copy Citation Text

    Genchao Qin, Fanyong Meng, Hong Li, Wei Zhuang, Mingli Dong. Adaptive demodulation of reflection spectrum intensity of fiber grating link[J]. Infrared and Laser Engineering, 2022, 51(5): 20200440

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Set citation alerts for article
    Save article for my favorites
    Paper Information

    Category: Optical communication and sensing

    Received: Nov. 3, 2021

    Accepted: --

    Published Online: Jun. 14, 2022

    The Author Email:

    DOI:10.3788/IRLA20200440

    Topics

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