Demodulator for fiber optic Bragg grating sensors based on fiber wavelength division couplers

Michael A. Davis; Timothy A. Berkoff; Alan D. Kersey

doi:10.1117/12.173990

1 May 1994 Demodulator for fiber optic Bragg grating sensors based on fiber wavelength division couplers

Michael A. Davis, Timothy A. Berkoff, Alan D. Kersey

Proceedings Volume 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation; (1994) https://doi.org/10.1117/12.173990
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

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.

Citation Download Citation

Michael A. Davis, Timothy A. Berkoff, and Alan D. Kersey "Demodulator for fiber optic Bragg grating sensors based on fiber wavelength division couplers", Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); https://doi.org/10.1117/12.173990

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