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Proceedings Paper

Near-infrared absorption fiber-optic sensors for ultra-sensitive CO2 detection
Author(s): Xinyuan Chong; Ki-Joong Kim; Paul R. Ohodnicki; Chih-Hung Chang; Alan X. Wang
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Paper Abstract

We present a fiber-optic sensor working at near-infrared (NIR) wavelength (~1.57μm) for CO2 detection. In order to increase the NIR absorption, we utilize functional sensor materials metalorganic framework (MOF) on the surface of the core of a multimode-fiber with the cladding layer etched away. The selected functional materials demonstrated excellent adsorption capacity of CO2 and significantly increased the detection sensitivity down to 500 ppm with only 8-centimeter absorption length.

Paper Details

Date Published: 13 May 2015
PDF: 7 pages
Proc. SPIE 9480, Fiber Optic Sensors and Applications XII, 94800W (13 May 2015); doi: 10.1117/12.2178072
Show Author Affiliations
Xinyuan Chong, Oregon State Univ. (United States)
Ki-Joong Kim, Oregon State Univ. (United States)
Paul R. Ohodnicki, National Energy Technology Lab. (United States)
Chih-Hung Chang, Oregon State Univ (United States)
Alan X. Wang, Oregon State Univ. (United States)

Published in SPIE Proceedings Vol. 9480:
Fiber Optic Sensors and Applications XII
Gary Pickrell; Eric Udd; Henry H. Du, Editor(s)

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