YAO Guo-zhen, LI Yong-qian. Impact of F-P etalon temperature characteristics on FBG wavelength demodulation accuracy[J]. Journal of Applied Optics, 2014, 35(3): 542-546.
Citation: YAO Guo-zhen, LI Yong-qian. Impact of F-P etalon temperature characteristics on FBG wavelength demodulation accuracy[J]. Journal of Applied Optics, 2014, 35(3): 542-546.
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Impact of F-P etalon temperature characteristics on FBG wavelength demodulation accuracy

  • Department of Electronics and Communication Engineering,North China Electric Power University,Baoding 071003,China

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  • The characteristics of Fabry-Perot(F-P) etalon can be easily affected by temperature, the transmission peaks of F-P etalon drift with the fluctuation of temperature, and when F-P etalon is applied in the fiber Bragg grating(FBG) wavelength demodulation, the fluctuation of temperature may cause wavelength demodulation error. The impact of F-P etalon temperature characteristics on the FBG wavelength demodulation accuracy was analyzed, and the stability experiment and repeatability experiment were carried out using F-P etalons with thermal stabilities of 1.5 GHz and 3 GHz respectively. The analysis and experimental results show that the standard deviation of the demodulation error which is generated by the temperature characteristics of the F-P etalon is different if the center wavelength of the FBG sensor is different; the maximum stability errors obtained by two F-P etalons are 0.528 pm and 0.676 pm, and the maximum repeatability errors are 1.77 pm and 2.01 pm respectively.
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