All-fiber low-temperature hydrogen sensing using a multi-functional light source

Tong Chen; Michael P. Buric; Di Xu; Kevin P. Chen; Philip R. Swinehart; Mokhtar Maklad

doi:10.1117/12.835255

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5 October 2009 All-fiber low-temperature hydrogen sensing using a multi-functional light source

Tong Chen, Michael P. Buric, Di Xu, Kevin P. Chen, Philip R. Swinehart, Mokhtar Maklad

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Proceedings Volume 7503, 20th International Conference on Optical Fibre Sensors; 750317 (2009) https://doi.org/10.1117/12.835255
Event: 20th International Conference on Optical Fibre Sensors, 2009, Edinburgh, United Kingdom

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.

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Tong Chen, Michael P. Buric, Di Xu, Kevin P. Chen, Philip R. Swinehart, and Mokhtar Maklad "All-fiber low-temperature hydrogen sensing using a multi-functional light source", Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 750317 (5 October 2009); https://doi.org/10.1117/12.835255

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