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Proceedings Paper

Thermally regenerated fiber Bragg gratings in twin-air-hole microstructured fibers for high temperature pressure sensing
Author(s): Tong Chen; Rongzhang Chen; Charles Jewart; Botao Zhang; John Canning; Kevin Cook; Kevin P. Chen
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Paper Abstract

We present thermally regnenerated fiber Bragg grating in air-hole microstructured fibers for high temperature hydrostatic pressure sensing application. Saturated type I gratings were inscribed in hydrogen-loaded two-hole optical fibers using 248-nm KrF laser, and regenerated during annealing at 800ºC. The fiber Bragg grating resonance wavelength shift and peak splits were studied as a function of external hydrostatic pressure from 15 psi to 2400 psi. The grating pressure sensor shows stable and reproducible operation up to 800ºC. This paper demonstrates a multiplexible pressure sensor network technology for high temperature harsh environment using a single fiber feedthrough.

Paper Details

Date Published: 3 June 2011
PDF: 8 pages
Proc. SPIE 8028, Fiber Optic Sensors and Applications VIII, 802807 (3 June 2011); doi: 10.1117/12.884994
Show Author Affiliations
Tong Chen, Univ. of Pittsburgh (United States)
Rongzhang Chen, Univ. of Pittsburgh (United States)
Charles Jewart, Univ. of Pittsburgh (United States)
Botao Zhang, Univ. of Pittsburgh (United States)
John Canning, The Univ. of Sydney (Australia)
Kevin Cook, The Univ. of Sydney (Australia)
Kevin P. Chen, Univ. of Pittsburgh (United States)


Published in SPIE Proceedings Vol. 8028:
Fiber Optic Sensors and Applications VIII
Stephen J. Mihailov; Henry H. Du; Gary Pickrell, Editor(s)

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