A Sensor With Coating Pt/WO Powder With an Erbium-Doped Fiber Amplifier to Detect the Hydrogen Concentration

Liu, Jiandong, Chu, Liang, Liu, Bin, Liu, Juan, Hu, Yingying, He, Xing-Dao, Yuan, Jinhui, Zhou, Yangbo, Liu, Dejun, Ghassemlooy, Fary, Martin, James, Fu, Yong Qing and Wu, Qiang (2023) A Sensor With Coating Pt/WO Powder With an Erbium-Doped Fiber Amplifier to Detect the Hydrogen Concentration. IEEE Sensors Journal, 23 (1). pp. 135-142. ISSN 1530-437X

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Official URL: https://doi.org/10.1109/jsen.2022.3223017


A highly sensitive hydrogen sensor coated with Pt/WO3 powder with an Erbium-doped fibre amplifier (EDFA) is proposed and experimentally demonstrated. The sensing head is constructed by splicing a short section of tapered small diameter coreless fiber (TSDCF diameter of 62.5 μm, and tapered to 14.5 μm) between two single-mode fibres. The Pt/WO3 powder adheres to the surface of PDMS film coated on the TSDCF structure, which is sensitive to hydrogen. An EDFA is introduced into the sensor system to improve the quality factor of the output spectrum and thus improve the sensor’s resolution. As the hydrogen concentration varies from 0 to 1.44, the measured maximum light intensity variation and the sensor’s sensitivity are -32.41 dB and -21.25 dB/, respectively. The sensor demonstrates good stability with the light intensity fluctuation of < 1.26 dB over a 30-minute duration.

Item Type: Article
Additional Information: Funding information: This work was supported by the Natural Science Foundation of Jiangxi Province (20212BAB202024 and 20192ACB20031); National Natural Science Foundation of China (NSFC) (11864025, 62175097, 62065013 and 62163029); Nanchang Hangkong University graduate student innovation special fund project (Grant No. YC2021-073).
Uncontrolled Keywords: Hydrogen sensor, Erbium-doped fiber amplifier, Pt/WO3 powder, PDMS film
Subjects: H600 Electronic and Electrical Engineering
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User: Rachel Branson
Date Deposited: 16 Nov 2022 13:19
Last Modified: 18 Jan 2023 16:15
URI: https://nrl.northumbria.ac.uk/id/eprint/50671

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