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Proceedings Paper

AOTF interrogation scheme for FBG
Author(s): Antonio Crespo
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Paper Abstract

Fiber optic embedded sensors can form effective nervous system for smart structures. Several types of fiber optic sensors exist today, of them the Fiber Bragg Grating sensors possess some interesting features. Some of these features are wavelength multiplexing, localized and cumulative sensing. But, the lack of a fast, rugged and inexpensive way to measure the Bragg wavelength has impeded their progress into smart structure applications. In this paper we will analyze a different approach in interrogating such sensors. This approach uses an AM modulated Acousto-Optic Tunable Filter as a fast spectrum analyzer.

Paper Details

Date Published: 20 May 1996
PDF: 4 pages
Proc. SPIE 2722, Smart Structures and Materials 1996: Smart Electronics and MEMS, (20 May 1996); doi: 10.1117/12.240434
Show Author Affiliations
Antonio Crespo, Air Force Wright Lab. (United States)

Published in SPIE Proceedings Vol. 2722:
Smart Structures and Materials 1996: Smart Electronics and MEMS
Vijay K. Varadan; Paul J. McWhorter, Editor(s)

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