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Proceedings Paper

Graphene-coated microfiber FBG for highly sensitive gas sensing
Author(s): Bai-Cheng Yao; Yu Wu; Anqi Zhang; Yang Cheng; Cai-bin Yu; Yuan Gong; Yun-Jiang Rao
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Paper Abstract

In this paper, a novel graphene-coated microfiber Bragg grating (GMFBG) sensor is proposed and demonstrated for detection of gas concentration, for the first time. Taking advantage of the surface field enhancement and polar molecular adsorption by the graphene film, we find that this structure is very sensitive to local chemical gas concentration, and the obtained sensitivities are 0.2 and 0.5ppm for NH3 and Xylene gas for tiny gas variation, respectively. Such a miniature GMFBG sensor could find applications in biological or chemical sensing, such as for trace analysis.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 915748 (2 June 2014); doi: 10.1117/12.2058502
Show Author Affiliations
Bai-Cheng Yao, Univ. of Electronic Science and Technology of China (China)
Yu Wu, Univ. of Electronic Science and Technology of China (China)
Anqi Zhang, Univ. of Electronic Science and Technology of China (China)
Yang Cheng, Univ. of Electronic Science and Technology of China (China)
Cai-bin Yu, Univ. of Electronic Science and Technology of China (China)
Yuan Gong, Univ. of Electronic Science and Technology of China (China)
Yun-Jiang Rao, Univ. of Electronic Science and Technology of China (China)


Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

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