Pd-Ag film coated cascaded long period gratings for hydrogen gas sensing

Zhen Yang; Xiujuan Yu; Xiaohui Chu; Min Zhang; Shurong Lai; Yanbiao Liao; Qisheng Li; Yi Zhang; Zhi Zhuang

doi:10.1117/12.885910

19 May 2011 Pd-Ag film coated cascaded long period gratings for hydrogen gas sensing

Zhen Yang, Xiujuan Yu, Xiaohui Chu, Min Zhang, Shurong Lai, Yanbiao Liao, Qisheng Li, Yi Zhang, Zhi Zhuang

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77539R (2011) https://doi.org/10.1117/12.885910
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

A Mach-Zehnder-like interferometer based on cascaded long period gratings with palladium silver (Pd-Ag) film coating is developed for monitoring the hydrogen concentration. The visibility of fringes is measured using Fourier analysis. The basic theory was given and preliminary experiment had been proved that this sensor can used to monitor the hydrogen concentration. The sensor showed a good response.

Citation Download Citation

Zhen Yang, Xiujuan Yu, Xiaohui Chu, Min Zhang, Shurong Lai, Yanbiao Liao, Qisheng Li, Yi Zhang, and Zhi Zhuang "Pd-Ag film coated cascaded long period gratings for hydrogen gas sensing", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77539R (19 May 2011); https://doi.org/10.1117/12.885910

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