J4 ›› 2011, Vol. 24 ›› Issue (1): 77-80,96.
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ZHAO Lin, LIU Tong-Yu, NI Jia-Sheng, SONG Zhi-Qiang
Online:
Published:
Abstract:
We perform curve fitting with the principle of least squares, which is based on the analysis of the wavelength detection of spectrum interrogation center. We construct an optimal generic polynomial spectrum fitting model with experimental data. This model is further applied to the curve fitting and simulation of individual central wavelength of acetylene absorption spectrum. Experimental results show that this model can reduce the drift of central wavelength and increase the accuracy of detection.
Key words: wavelength interrogation, curve fitting, least squares method
CLC Number:
TN209
ZHAO Lin, LIU Tong-Yu, NI Jia-Sheng, SONG Zhi-Qiang. Application of least squares curve fitting in wavelength interrogation of fiber Bragg grating[J].J4, 2011, 24(1): 77-80,96.
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