The synthesis of multiple parameters of arbitrary FBGs via a genetic algorithm, and two thermally modulated intensity spectra

被引:20
作者
Cheng, HC [1 ]
Lo, YL
机构
[1] Natl Cheng Kung Univ, Dept Elect Engn, Tainan 701, Taiwan
[2] Natl Cheng Kung Univ, Dept Mech Engn, Tainan 701, Taiwan
关键词
Fiber Bragg gratings (FBGs); genetic algorithm; parameter synthesis; temperature distribution;
D O I
10.1109/JLT.2005.849922
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
This paper describes the use of a genetic algorithm and two thermally modulated fiber Bragg grating (FBG) reflection intensity spectra to perform the inverse extraction of multiple physical parameters of arbitrary FBGs, including the grating period, grating position, grating length, chirped direction, and refractive-index modulation. The developed numerical approach is applied to synthesize the parameters of uniform and chirped FBGs. The experimental results confirm the ability of the proposed method to recover the grating period, grating length, grating position, refractive-index modulation depth, and apodize factor of a 10-mm-length uniform FBG. The proposed method is suitable for fiber communication applications and smart structure-monitoring systems.
引用
收藏
页码:2158 / 2168
页数:11
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