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Proceedings Paper

High-temperature fiber Bragg grating sensors in microstructured fibers for harsh environment applications
Author(s): Qingqing Wang; Charles M. Jewart; John Canning; Dan Grobnic; Stephen J. Mihailov; Kevin P. Chen
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Paper Abstract

In this paper, we present fiber Bragg grating pressure sensors written in twin-hole microstructured fibers for high temperature operation above 800 °C. A Ti: Sapphire ultrafast laser is used to inscribe type II grating in two-hole optical fibers. The fiber Bragg grating resonance wavelength shift and peak splits are studied as a function of external hydrostatic pressure from 15 psi to 2000 psi. The ultrafast laser inscribed grating pressure sensor shows stable and reproducible operation above 800 °C. This paper demonstrates highly multiplexible pressure sensor technology for high temperature environment.

Paper Details

Date Published: 23 April 2010
PDF: 7 pages
Proc. SPIE 7677, Fiber Optic Sensors and Applications VII, 76770G (23 April 2010); doi: 10.1117/12.851778
Show Author Affiliations
Qingqing Wang, Univ. of Pittsburgh (United States)
Charles M. Jewart, Univ. of Pittsburgh (United States)
John Canning, The Univ. of Sydney (Australia)
Dan Grobnic, Communications Research Ctr. Canada (Canada)
Stephen J. Mihailov, Communications Research Ctr. Canada (Canada)
Kevin P. Chen, Univ. of Pittsburgh (United States)


Published in SPIE Proceedings Vol. 7677:
Fiber Optic Sensors and Applications VII
Alexis Mendez; Henry H. Du; Anbo Wang; Eric Udd; Stephen J. Mihailov, Editor(s)

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