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Proceedings Paper

Hydrogen sensing array based on weak fiber Bragg grating
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Paper Abstract

Optical fiber hydrogen sensing system based on weak fiber Bragg grating (WFBG) array deposited with palladium (Pd) film is proposed and experimentally demonstrated. For multi-point measurement, three hydrogen WFBG sensors array are weld in a single optical fiber. A time-division multiplexing (TDM) interrogation system is employed to demodulate the sensing array. Sensing experiments to different hydrogen concentrations ranging from 0 to 3.6% are conducted, and the results show good agreement with standard FBG technology. Due to its strong multiplexing capability of weak FBG, the system is possible to integrate thousands of WFBG hydrogen sensors in a single optical fiber.

Paper Details

Date Published: 28 September 2015
PDF: 4 pages
Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347E (28 September 2015); doi: 10.1117/12.2193869
Show Author Affiliations
Wei Bai, Wuhan Univ. of Technology (China)
Minghong Yang, Wuhan Univ. of Technology (China)
Chenyuan Hu, Wuhan Univ. of Technology (China)
Jixiang Dai, Wuhan Univ. of Technology (China)
Zhi Li, Wuhan Univ. of Technology (China)
Haihu Yu, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 9634:
24th International Conference on Optical Fibre Sensors
Hypolito José Kalinowski; José Luís Fabris; Wojtek J. Bock, Editor(s)

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