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

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

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.

Citation Download Citation

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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