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Proceedings Paper

Demodulator for fiber optic Bragg grating sensors based on fiber wavelength division couplers
Author(s): Michael A. Davis; Timothy A. Berkoff; Alan D. Kersey
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Paper Abstract

A number of techniques to address fiber Bragg grating (FBG) sensors have been described in recent years. This paper discusses the use of wavelength division multiplexing (WDM) couplers to perform the detection of wavelength shifts in the optical return signals from FBG sensor elements. These components allow all-fiber versions of the wavelength filtering ratiometric demodulation scheme to be implemented. Systems based on the use of a fused WDM coupler and a planar waveguide device are described.

Paper Details

Date Published: 1 May 1994
PDF: 8 pages
Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); doi: 10.1117/12.173990
Show Author Affiliations
Michael A. Davis, Naval Research Lab. (United States)
Timothy A. Berkoff, SFA, Inc. (United States)
Alan D. Kersey, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 2191:
Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation
James S. Sirkis, Editor(s)

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