A novel wavelength detection technique of overlapping spectra in the serial WDM FBG sensor network

被引：33

作者：

Jiang, Hao ^{[1
]}

Chen, Jing ^{[1
]}

Liu, Tundong ^{[1
]}

Huang, Wencai ^{[1
]}

机构：

[1] Xiamen Univ, Coll Informat Sci & Technol, Xiamen 361005, Peoples R China

来源：

SENSORS AND ACTUATORS A-PHYSICAL | 2013年 / 198卷

基金：

中国国家自然科学基金;

关键词：

Fiber Bragg grating; Transfer matrix method; Differential evolution algorithm; MEASUREMENT RANGE; ENHANCEMENT;

D O I：

10.1016/j.sna.2013.04.023

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

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.

引用

页码：31 / 34

页数：4

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