Fiber Bragg grating complete parameter synthesis by using two thermally-modulated reflection intensity spectra and genetic algorithm

Hsu-Chih Cheng; Yu-Lung Lo

doi:10.1117/12.623398

23 May 2005 Fiber Bragg grating complete parameter synthesis by using two thermally-modulated reflection intensity spectra and genetic algorithm

Hsu-Chih Cheng, Yu-Lung Lo

Author Affiliations +

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623398
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

In this paper, we describe the use of a genetic algorithm and two thermally-modulated fiber Bragg grating's (FBG's) reflection intensity spectra for inversely extracting complete physical parameters. The fiber Bragg grating's complete parameters included the grating period, grating position, grating length, chirped direction, and refractive index modulation. In this study, a uniform and chirped fiber Bragg gratings are synthesized successfully in the experiment. The experimental results show that the complete parameter synthesis in grating period, grating length, refractive index modulation and various grating positions from a 10 mm length uniform FBG have been recovered accurately.

Citation Download Citation

Hsu-Chih Cheng and Yu-Lung Lo "Fiber Bragg grating complete parameter synthesis by using two thermally-modulated reflection intensity spectra and genetic algorithm", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623398

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