Abstract
In order to eliminate the influence of the F-P filter temperature characteristics on the accuracy of the fiber Bragg grating wavelength demodulation system,a method is put forward that uses the F-P etalon as a wavelength reference to calculate the wavelength.A high precision fiber Bragg grating wavelength demodulation system is designed,and the algorithms for filtering,peak detecting and wavelength calculating are achieved by LabWindows/CVI.The experimental results show that the repeatability error is smaller than 1.56 pm,and the stability error is smaller than 1.13 pm.
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