Photonic Sensors, Volume. 5, Issue 2, 137(2015)
Zeolite Thin Film-Coated Fiber Sensors Based on Fabry-Perot Interferometer for Detection of Chemical Vapors
A novel zeolite-coated fiber sensors for detection of volatile organic compounds (VOCs) based on the Fabry-Perot interferometer was proposed and demonstrated. The sensor comprised a polycrystalline silicalite thin film grown up on the cleaved end face of a standard single-mode fiber. The inline Fabry-Perot cavity was composed by the end face of the single-mode fiber and the thin film. The sensor device operated by measuring the interference signal, which was a function of the amount of chemical vapor adsorption in its crystalline micro porous structure. Experimental results showed that the proposed VOC sensor worked well and the sensitivities were 2.78×10-3 dB/ppm when the concentration ranged from 350 ppm to 2100 ppm and 1.23×10-3 dB/ppm when the concentration ranged from 2100 ppm to 5250 ppm.
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Xiangping NING, Chunliu ZHAO, Feifei SHI, and Juan KANG. Zeolite Thin Film-Coated Fiber Sensors Based on Fabry-Perot Interferometer for Detection of Chemical Vapors[J]. Photonic Sensors, 2015, 5(2): 137
Category: Regular
Received: Nov. 30, 2014
Accepted: Jan. 23, 2015
Published Online: Apr. 20, 2015
The Author Email: ZHAO Chunliu (zhchunliu@homail.com)