Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/15752
Title: Fabry-perot interferometer sensor fabricated by femtosecond laser for hydrogen sensing
Authors: Wang, M
Yang, M
Cheng, J
Zhang, G
Liao, CR
Wang, DN 
Keywords: Fabry-Perot interferometer (FPI)
Laser machining
Optical fiber sensors
Thin films
Issue Date: 2013
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE photonics technology letters, 2013, v. 25, no. 8, p. 713-716 How to cite?
Journal: IEEE photonics technology letters 
Abstract: In this letter, an optical fiber hydrogen sensor based on a Fabry-Perot interferometer cavity fabricated by femtosecond laser micromachining near the fiber end and deposited with Pd film is proposed. The relationship between the reflection spectrum and the hydrogen concentration is simulated, and experimentally demonstrated. The shifts of the interferometer output spectrum are 10, 30, 100, and 150 pm respectively, corresponding to the hydrogen concentration of 2%, 4%, 6%, and 8%, respectively. The proposed sensor is compact, easy in fabrication, and has high potential for hydrogen detection.
URI: http://hdl.handle.net/10397/15752
ISSN: 1041-1135
EISSN: 1941-0174
DOI: 10.1109/LPT.2013.2241421
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