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Proceedings Paper

Demodulation of in-fiber Bragg grating sensors using volume holograms
Author(s): Stephen W. James; Michael L. Dockney; Ralph P. Tatam
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Paper Abstract

A volume holographic spectral filter bank formed in photorefractive BaTiO3 is proposed and demonstrated as a demodulation scheme for in-fiber Bragg grating sensors. A strain range of 2500 microsecond(s) train, with minimum detectable strain of 4 microsecond(s) train/(root)Hz is reported. Extension of the technique to allow intensity referencing and parallel demodulation of an array of sensors is discussed.

Paper Details

Date Published: 27 November 1996
PDF: 6 pages
Proc. SPIE 2838, Distributed and Multiplexed Fiber Optic Sensors VI, (27 November 1996); doi: 10.1117/12.259815
Show Author Affiliations
Stephen W. James, Cranfield Univ. (United Kingdom)
Michael L. Dockney, Cranfield Univ. (United Kingdom)
Ralph P. Tatam, Cranfield Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 2838:
Distributed and Multiplexed Fiber Optic Sensors VI
Alan D. Kersey; John P. Dakin, Editor(s)

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