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Proceedings Paper

Optical fiber hydrogen sensor based on a no-core fiber structure
Author(s): Xuhui Zhang; Yun Liu; Qiang Liu; Huizhen Yuan; Mengdi Lu; Shuwen Chu; Wei Peng
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Paper Abstract

A novel and simple optical fiber structure with a section of no-core fiber for measuring hydrogen concentration is presented. Palladium is sputtered to form the coating on the no-core fiber by magnetron sputtering coater. Under different hydrogen conditions, the absorption of hydrogen induced refractive index changes on the outside coating of no core fiber will lead to the variations of the optical output spectrum. Different concentrations of hydrogen are tested, from 4%-0.5%, shows the concentration is relevant with the response time and recovery time. The response time of this sensor is from 300s (4% H2) to 1800s (0.5% H2) depending on the hydrogen concentration. The recovery time of this sensor is from 1200s (4% H2) to 4800s (0.5% H2) depending on the hydrogen concentration. Furthermore, the repeatability and response time of the sensor of this study are investigated experimentally.

Paper Details

Date Published: 20 December 2019
PDF: 7 pages
Proc. SPIE 11209, Eleventh International Conference on Information Optics and Photonics (CIOP 2019), 112091X (20 December 2019); doi: 10.1117/12.2547694
Show Author Affiliations
Xuhui Zhang, Dalian Univ. of Technology (China)
Yun Liu, Dalian Univ. of Technology (China)
Qiang Liu, Dalian Univ. of Technology (China)
Huizhen Yuan, Dalian Univ. of Technology (China)
Mengdi Lu, Dalian Univ. of Technology (China)
Shuwen Chu, Dalian Univ. of Technology (China)
Wei Peng, Dalian Univ. of Technology (China)


Published in SPIE Proceedings Vol. 11209:
Eleventh International Conference on Information Optics and Photonics (CIOP 2019)
Hannan Wang, Editor(s)

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