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Jun He, Fang Li, Hao Xiao, Yu-Liang Liu. Fiber Bragg Grating Sensor Array System Based on Digital Phase Generated Carrier Demodulation and Reference Compensation Method[J]. Journal of Electronic Science and Technology, 2008, 6(4): 389-392.
Citation: Jun He, Fang Li, Hao Xiao, Yu-Liang Liu. Fiber Bragg Grating Sensor Array System Based on Digital Phase Generated Carrier Demodulation and Reference Compensation Method[J]. Journal of Electronic Science and Technology, 2008, 6(4): 389-392.
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Fiber Bragg Grating Sensor Array System Based on Digital Phase Generated Carrier Demodulation and Reference Compensation Method

  • Optoelectronic System Laboratory,Institute of Semiconductors,Chinese Academy of Sciences,Beijing,100083,China

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This work was supported by the National 863 Program under Grant No. 2007AA03Z415.

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  • Author Bio:

    Jun He research interests include fiber Bragg grating sensors, fiber laser sensors, demodulation and multiplexing techniques of fiber optic sensors, hejun07@semi.ac.cn;
    Fang Li, lifang@semi.ac.cn;
    Hao Xiao, xhao@semi.ac.cn;
    Yu-Liang Liu, ylliu@semi.ac.cn

    Jun He research interests include fiber Bragg grating sensors, fiber laser sensors, demodulation and multiplexing techniques of fiber optic sensors, hejun07@semi.ac.cn;
    Fang Li, lifang@semi.ac.cn;
    Hao Xiao, xhao@semi.ac.cn;
    Yu-Liang Liu, ylliu@semi.ac.cn

    Jun He research interests include fiber Bragg grating sensors, fiber laser sensors, demodulation and multiplexing techniques of fiber optic sensors, hejun07@semi.ac.cn;
    Fang Li, lifang@semi.ac.cn;
    Hao Xiao, xhao@semi.ac.cn;
    Yu-Liang Liu, ylliu@semi.ac.cn

    Jun He research interests include fiber Bragg grating sensors, fiber laser sensors, demodulation and multiplexing techniques of fiber optic sensors, hejun07@semi.ac.cn;
    Fang Li, lifang@semi.ac.cn;
    Hao Xiao, xhao@semi.ac.cn;
    Yu-Liang Liu, ylliu@semi.ac.cn

  • Received Date: 2008-09-17
  • Rev Recd Date: 2008-10-07
  • Publish Date: 2008-12-24
    Abstract
  • A novel fiber Bragg grating (FBG) sensor array system based on digital phase generated carrier (PGC) demodulation and reference compensation method is proposed and set up. Experimental results confirm that the digital PGC demodulation can be used for wavelength-division-multiplexed FBG sensor array and the reference compensation method can reduce the environmental interference by approximately 40 dB in the frequency range from 20 Hz to 2 kHz. The minimum detectable wavelength-shift of the sensor system is 110-3 pm/Hz1/2.
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