高精度光纤光栅波长解调方法研究综述.pdf

年 第 期 光 通 信 研 究
202 1 4
总第 期 ey Laboratory of Optical Fiber Sensing and Optical Communication Technology,
North China Electric Power University,Baoding 07 1003 ,China)
Abstract
:The fiber Bragg grating sensor measures the value according to the wavelength ,it is of great sig-
nificance to improve the wavelength demodulation accuracy of the fiber of the traditional demodulation methods
have a single structure,which results in poor measurement accuracy for overlapped spectrum and distortion spectrum,and lim-
its the improvement of demodulation high-precision wavelength demodulation method mainly solves the prob-
lems of poor system temperature stability and low peak-finding paper introduces the application of fiber grating
wavelength demodulation technology in communication,and reviews the high-precision fiber grating wavelength demodulation
methods in recent years,including hardware methods of reference fiber gratings,Michelson interferometers and gas cells,and
software methods based on neural networks and particle principle of each demodulation method and its advantages
and disadvantages in the field of fiber grating sensing are described,and the problems and development tr