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Proceedings Paper

Optical fiber hydrogen sensor based on micro interferometer
Author(s): Min Wang; Jie Cheng; Xun Yu; Jixiang Dai; Guilin Zhang; Minghong Yang
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Paper Abstract

In this paper, a femtosecond (fs) laser fabricated fiber in-line micro Michelson interferometer (MI) with palladium (Pd) film deposited on the fiber end face for hydrogen detection is proposed and demonstrated. Beam Propagation Method (BPM) is used to analyze the influence of refractive index (RI) of Pd film on reflection spectrum. As for the experimental results, the variation of optical power and shift of interference peak wavelength are -4.904 dBm and -4.2 nm respectively with the increase of hydrogen concentration from 0% to 16%. The developed system has high potential in hydrogen sensing with high sensitivity.

Paper Details

Date Published: 7 November 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84217R (7 November 2012); doi: 10.1117/12.970263
Show Author Affiliations
Min Wang, Wuhan Univ. of Technology (China)
Jie Cheng, Wuhan Univ. of Technology (China)
Xun Yu, Huazhong Univ. of Science & Technology (China)
Jixiang Dai, Wuhan Univ. of Technology (China)
Guilin Zhang, Wuhan Univ. of Technology (China)
Minghong Yang, Wuhan Univ. of Technology (China)

Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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