Laser & Optoelectronics Progress, Volume. 54, Issue 1, 13001(2017)
Application of Gaussian-LM Algorithm in Fiber Bragg Grating Reflection Spectrum Peak Search
The analysis of the sampled fiber Bragg grating reflection spectrum usually obtained with so much noise. Levenberg-Marquardt (LM) algorithm is used to optimize the Gaussian curve fitting coefficient and the optimized Gaussian-LM algorithm is used for fiber Bragg grating spectrum peak detection. The comparison of the peak search results proves that the Gaussian-LM algorithm is important for optimizing the Gaussian curve coefficient. Research shows that Gaussian-LM peak detection algorithm can effectively reduce the peak error. It also improves stability of central wavelength detection and accuracy in fiber Bragg grating sensor system based on wavelength demodulation system.
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Hu Zhengwen, Pang Chengxin, Cheng Fengyu. Application of Gaussian-LM Algorithm in Fiber Bragg Grating Reflection Spectrum Peak Search[J]. Laser & Optoelectronics Progress, 2017, 54(1): 13001
Category: Spectroscopy
Received: May. 31, 2016
Accepted: --
Published Online: Jan. 17, 2017
The Author Email: Zhengwen Hu (huzhengwen2011@gmail.com)