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Proceedings Article

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

[+] Author Affiliations
Changyu Shen

China Jiliang Univ. (China) and Zhejiang Univ. (China)

Chuan Zhong

China Jiliang Univ. (China)

Proc. SPIE 7990, Optical Sensors and Biophotonics II, 79900K (January 03, 2011); doi:10.1117/12.887557
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From Conference Volume 7990

  • Optical Sensors and Biophotonics II
  • Qingming Luo; Frank Chuang; Stefan Haacke; Chih-Chung Yang
  • Shanghai, China | December 08, 2010

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.

© (2010) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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 (January 03, 2011); doi:10.1117/12.887557; http://dx.doi.org/10.1117/12.887557


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