Fiber in-line Fabry-Perot hydrogen sensing interferometer fabricated by femtosecond laser with Pd/Ag composite coatings

Fiber in-line Fabry-Perot hydrogen sensing interferometer fabricated by femtosecond laser with Pd/Ag composite coatings

We propose a compact hydrogen sensor, based on Fabry-Perot interferometer with Pd/Ag composite film, fabricated by femtosecond laser mieromachining and thin-film coating technique. The sensing characteristic of sensor with 150-nm Pd/Ag24 composite film is studied, and the device is tested to measure...

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Bibliographic Details
Published in:Chinese optics letters Vol. 12; no. 1; pp. 74 - 76
Main Author: 王闵 扬明红 成洁 许明耀
Format: Journal Article
Language:English
Published: 2014
Subjects:
光纤
制造
在线法
复合涂层
干涉
氢传感器
银
飞秒激光
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Summary:We propose a compact hydrogen sensor, based on Fabry-Perot interferometer with Pd/Ag composite film, fabricated by femtosecond laser mieromachining and thin-film coating technique. The sensing characteristic of sensor with 150-nm Pd/Ag24 composite film is studied, and the device is tested to measure the hydrogen volume ratio range of 0-8%. Experimental results show that the response of the sensor is reversible, and the system shows high potential in hydrogen detection.
Bibliography:Min Wang , Minghong Yang , Jie Cheng , Mingyao Xu （ 1School of Electronic and Electrical Engineering, Wuhan Textile University, Wuhan 430200, China 2National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China）
31-1890/O3
We propose a compact hydrogen sensor, based on Fabry-Perot interferometer with Pd/Ag composite film, fabricated by femtosecond laser mieromachining and thin-film coating technique. The sensing characteristic of sensor with 150-nm Pd/Ag24 composite film is studied, and the device is tested to measure the hydrogen volume ratio range of 0-8%. Experimental results show that the response of the sensor is reversible, and the system shows high potential in hydrogen detection.
ISSN:1671-7694
DOI:10.3788/COL201412.S11201