光纤布拉格光栅解调频谱的峰值定位算法

Q4 Physics and Astronomy

光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144001.0053

申雅峰 Shen Yafeng, 胡春艳 Hu Chunyan, 张. Z. Lei

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引用次数: 0

摘要

提出了一种基于光谱峰定位的低复杂度光纤光栅波长解调算法Levenberg-Marquarat算法。与现有的功率加权算法和高斯多项式拟合算法相比，该算法具有光谱峰定位精度高的优点。实验结果表明，在高信噪比条件下，采用该算法可以有效地抵抗噪声，提高解调精度。光纤光栅的波长解调误差可控制在1pm以内。通过简化的数据处理，可以满足高速解调的要求，并且易于在数字电路上实现。

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A peak location algorithm for the demodulation spectrum of fiber Bragg grating

A low complexity Levenberg-Marquarat algorithm for fiber grating wavelength demodulation algorithm is presented based on spectral peak location.Compared with the existing power weighted algorithm and the Gauss polynomial fitting algorithm,the algorithm has the advantage of high precision positioning spectral peak.Experiment results show that using the algorithm can effectively resist the noise and increase the demodulation precision in the high signal-to-noise ratio conditions.The wavelength demodulation error of fiber Bragg grating can be controlled within 1pm.Through the simplified data processing,it can meet the requirements of high-speed demodulation and is easy to realize on the digital circuit.

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".