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Proceedings Paper

All-fiber low-temperature hydrogen sensing using a multi-functional light source
Author(s): Tong Chen; Michael P. Buric; Di Xu; Kevin P. Chen; Philip R. Swinehart; Mokhtar Maklad
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Paper Abstract

We report an all-fiber hydrogen sensing system for low-temperature operation. The sensor consists of a fiber Bragg grating written in high-attenuation fiber and coated in Palladium. Heating the sensor with in-fiber light power greatly enhances sensitivity at low temperatures. A multi-functional infrared light source is used to provide both in-fiber heating and sensor monitoring. This technology promises a single fiber feedthrough solution for low temperature multipoint hydrogen leak detection.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 750317 (5 October 2009); doi: 10.1117/12.835255
Show Author Affiliations
Tong Chen, Univ. of Pittsburgh (United States)
Michael P. Buric, Univ. of Pittsburgh (United States)
Di Xu, Univ. of Pittsburgh (United States)
Kevin P. Chen, Univ. of Pittsburgh (United States)
Philip R. Swinehart, Lake Shore Cryotronics (United States)
Mokhtar Maklad, Lake Shore Cryotronics (United States)


Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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