Characteristics of refractive index sensor based on adjusting gap fiber Bragg grating

Changyu Shen; Chuan Zhong

doi:10.1117/12.887557

3 January 2011 Characteristics of refractive index sensor based on adjusting gap fiber Bragg grating

Changyu Shen, Chuan Zhong

Proceedings Volume 7990, Optical Sensors and Biophotonics II; 79900K (2011) https://doi.org/10.1117/12.887557
Event: Asia Communications and Photonics Conference and Exhibition, 2010, Shanghai, Shanghai, China

Abstract

A refractive index sensor based on adjusting gap fiber Bragg grating was designed. Spectral characteristics of gap FBG are analyzed based on the coupled-mode theory with the transfer matrix method. As the refractive index of the media in the gap increased, the peak wavelength has a red-shift. Through measuring the reflectivity of the side band, the refractive index of media in the gap can be obtained.

Citation Download Citation

Changyu Shen and Chuan Zhong "Characteristics of refractive index sensor based on adjusting gap fiber Bragg grating", Proc. SPIE 7990, Optical Sensors and Biophotonics II, 79900K (3 January 2011); https://doi.org/10.1117/12.887557

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