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An optical fiber peanut flat-end reflection refractive Index sensor based on Michelson interference principle is experimentally demonstrated. It has one peanut structure which makes it easy to fabricate and can implement measurement on the same side. The peanut structure is fabricated by electrical arc discharge. This structure constitutes a Michelson interferometer. Experimental results show that...
In this paper, we proposed a novel zeolite thin film-coated spherical end face fiber sensor for detecting formaldehyde. The proposed sensor comprise of the fiber's spherical end-face covered with a layer of zeolite thin film. The zeolite film and spherical end face constituted an arc-shaped inline Fabry-Perot cavity, which improved the interference performance. The concentration of formaldehyde was...
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