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Proceedings Paper

Side-polished fiber Bragg grating hydrogen sensor with different sensitive thin films
Author(s): Minghong Yang; Jixiang Dai; Kun Cao; Junsheng Liao; Pengcheng Zhang
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Paper Abstract

WO3-Pd and Pd-Ag composite films were deposited on the side-face of side-polished fiber Bragg grating as sensing element by magnetron sputtering process. Compared to common FBG coated with same hydrogen sensitive film, side-polished FBG significantly increase the sensor's sensitivity. When the hydrogen concentration is 4% and 8% in volume percentage, the maximum wavelength shift of side-polished FBG is about 25 and 55 pm respectively. The experiment results show the sensor's hydrogen response is reversible, side-polished FBG hydrogen sensor has great potential in hydrogen's measurement.

Paper Details

Date Published: 30 January 2012
PDF: 7 pages
Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 83511A (30 January 2012); doi: 10.1117/12.914029
Show Author Affiliations
Minghong Yang, Wuhan Univ. of Technology (China)
Jixiang Dai, Wuhan Univ. of Technology (China)
Kun Cao, China Academy Engineering Physics (China)
Junsheng Liao, China Academy Engineering Physics (China)
Pengcheng Zhang, China Academy Engineering Physics (China)

Published in SPIE Proceedings Vol. 8351:
Third Asia Pacific Optical Sensors Conference
John Canning; Gangding Peng, Editor(s)

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