AOTF interrogation scheme for FBG

Antonio Crespo

doi:10.1117/12.240434

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20 May 1996 AOTF interrogation scheme for FBG

Antonio Crespo

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Proceedings Volume 2722, Smart Structures and Materials 1996: Smart Electronics and MEMS; (1996) https://doi.org/10.1117/12.240434
Event: 1996 Symposium on Smart Structures and Materials, 1996, San Diego, CA, United States

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.

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Antonio Crespo "AOTF interrogation scheme for FBG", Proc. SPIE 2722, Smart Structures and Materials 1996: Smart Electronics and MEMS, (20 May 1996); https://doi.org/10.1117/12.240434

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