Self-compensated microstructure fiber optic sensor to detect high hydrogen concentration | Zendy

ShuiJing Tang | Zendy; Bo Zhang | Zendy; Zhi Li | Zendy; Jixiang Dai | Zendy; Gaopeng Wang | Zendy; Minghong Yang | Zendy

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Self-compensated microstructure fiber optic sensor to detect high hydrogen concentration

Author(s) -

ShuiJing Tang,

Bo Zhang,

Zhi Li,

Jixiang Dai,

Gaopeng Wang,

Minghong Yang

Publication year - 2015

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.23.022826

Subject(s) - materials science , optics , microstructure , optical fiber , repeatability , hydrogen sensor , fiber optic sensor , fiber , photonic crystal fiber , hydrogen , optoelectronics , composite material , palladium , biochemistry , chemistry , physics , organic chemistry , chromatography , catalysis

Dual-cavity microstructure fiber optic hydrogen sensor based on evaporated Pt/WO(3) film was proposed and experimentally explored in this paper, which provides a novel solution to detect high hydrogen concentration (10-30% H(2)). Dual-cavity microstructure fabricated by splicer is composed of an inner air-cavity and a collapsed photonic crystal fiber cavity. The proposed sensor has the advantages of miniature structure, stable configuration, low cost. Based on three-beam interference model and verification experiments, the compensation function to the fluctuation of light source and fiber loss is proved from the theoretical simulation and experimental investigation. The sensor has a short response time (1min), good repeatability and reliability. Besides, the change of temperature affects the response value of the hydrogen sensor, but the impact can be neglected in 10-30% H(2).

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