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Proceedings Paper

High spatial resolution fiber optical sensors for simultaneous temperature and chemical sensing for energy industries
Author(s): Aidong Yan; Sheng Huang; Shuo Li; Mohamed Zaghloul; Paul Ohodnicki; Michael Buric; Kevin P. Chen
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Paper Abstract

This paper demonstrates optical fibers as high-temperature sensor platforms. Through engineering and onfiber integration of functional metal oxide sensory materials, we report the development of an integrated sensor solution to perform temperature and chemical measurements for high-temperature energy applications. Using the Rayleigh optical frequency domain reflectometry (OFDR) distributed sensing scheme, the temperature and hydrogen concentration were measured along the fiber. To overcome the weak Rayleighbackscattering intensity exhibited by conventional optical fibers, an ultrafast laser was used to enhance the Rayleigh scattering by a direct laser writing method. Using the Rayleigh-enhanced fiber as sensor platform, both temperature and hydrogen reaction were monitored at high temperature up to 750°C with 4-mm spatial resolution.

Paper Details

Date Published: 18 May 2017
PDF: 7 pages
Proc. SPIE 10194, Micro- and Nanotechnology Sensors, Systems, and Applications IX, 101941R (18 May 2017); doi: 10.1117/12.2263624
Show Author Affiliations
Aidong Yan, Univ. of Pittsburgh (United States)
Sheng Huang, Univ. of Pittsburgh (United States)
Shuo Li, Univ. of Pittsburgh (United States)
Mohamed Zaghloul, Univ. of Pittsburgh (United States)
Paul Ohodnicki, National Energy Technology Lab. (United States)
Michael Buric, National Energy Technology Lab. (United States)
Kevin P. Chen, Univ. of Pittsburgh (United States)

Published in SPIE Proceedings Vol. 10194:
Micro- and Nanotechnology Sensors, Systems, and Applications IX
Thomas George; Achyut K. Dutta; M. Saif Islam, Editor(s)

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