28 September 2015 Hydrogen sensing array based on weak fiber Bragg grating
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Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 96347E (2015) https://doi.org/10.1117/12.2193869
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil
Abstract
Optical fiber hydrogen sensing system based on weak fiber Bragg grating (WFBG) array deposited with palladium (Pd) film is proposed and experimentally demonstrated. For multi-point measurement, three hydrogen WFBG sensors array are weld in a single optical fiber. A time-division multiplexing (TDM) interrogation system is employed to demodulate the sensing array. Sensing experiments to different hydrogen concentrations ranging from 0 to 3.6% are conducted, and the results show good agreement with standard FBG technology. Due to its strong multiplexing capability of weak FBG, the system is possible to integrate thousands of WFBG hydrogen sensors in a single optical fiber.
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Wei Bai, Wei Bai, Minghong Yang, Minghong Yang, Chenyuan Hu, Chenyuan Hu, Jixiang Dai, Jixiang Dai, Zhi Li, Zhi Li, Haihu Yu, Haihu Yu, } "Hydrogen sensing array based on weak fiber Bragg grating", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 96347E (28 September 2015); doi: 10.1117/12.2193869; https://doi.org/10.1117/12.2193869
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