Optimization design of high-sensitivity temperature sensor based on Bragg grating in liquid-filled photonic crystal fibers

被引：3
|
作者：
Man, Wenqing [1 ]
Feng, Jinpeng [1 ]
Peng, Jun [1 ]
机构：
[1] Guangzhou Univ, Sch Phys & Elect Engn, Dept Elect Engn, Guangzhou 510006, Guangdong, Peoples R China
来源：
OPTICAL ENGINEERING | 2012年 / 51卷 / 08期
关键词：
photonic crystal fibers; Bragg gratings; optical; fiber sensors; MICROSTRUCTURED OPTICAL-FIBERS; GENETIC ALGORITHM; SILICA; INSCRIPTION; INDEX;
D O I：
10.1117/1.OE.51.8.085004
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A high-sensitivity temperature sensor based on fiber Bragg gratings (FBGs) in liquid-filled photonic crystal fibers (PCFs) is proposed. PCF is designed using the full-vector finite-element method. To achieve the maximum difference of the core-mode effective index of PCF as the temperature change, the structural parameters of PCF are optimized via genetic algorithms. The calculated Bragg wavelength shift (BWS) value of FBGs in liquid-filled PCF is 263 pm/degrees C as the temperature changes from -15 degrees C to 65 degrees C. (C) 2012 Society of Photo-Optical Instrumentation Engineers (SPIE). [DOI: 10.1117/1.OE.51.8.085004]
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页数：4
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