A novel wavelength detection technique of overlapping spectra in the serial WDM FBG sensor network
A novel wavelength detection technique of overlapping spectra in the serial WDM FBG sensor network
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DOI：
10.1016/j.sna.2013.04.023
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发表时间：
2013-08-15
影响因子：
4.6
通讯作者：
Huang, Wencai
中科院分区：
文献类型：
--
作者：
Jiang, Hao;Chen, Jing;Huang, Wencai
针对光纤光栅（FBG）光谱部分重叠或完全重叠的情况，提出了一种基于串联波分复用（WDM）的FBGs传感网络的波长检测方法。具体地说，提出了一种利用传递矩阵法分析反射光谱的优化模型。该问题的搜索空间表明，最优解和次优解是完全对称的。考虑到问题的特殊性，采用一种改进的差分进化算法Swap-DE来计算布拉格波长。实验结果表明，波长检测误差一般小于0.2pm。(C)2013 Elsevier B. V.保留所有权利。
Wavelength detection problem is addressed in a serial wavelength division multiplexing (WDM) fiber Bragg grating (FBG) sensor network, where the spectra of the FBGs are partially or fully overlapped. Specifically, an optimization model utilizing the transfer matrix method to analyze the reflection spectra is presented. The search space of this problem indicates that the optimal solution and the sub-optimal solution are completely symmetric. Considering the peculiarity of the problem, an improved differential evolution (DE) algorithm, named Swap-DE, is used to calculate the Bragg wavelengths. Experimental results show that the wavelength detection error is typically smaller than 0.2 pm. (C) 2013 Elsevier B.V. All rights reserved.