Demodulation of in-fiber Bragg grating sensors using volume holograms

Stephen W. James; Michael L. Dockney; Ralph P. Tatam

doi:10.1117/12.259815

27 November 1996 Demodulation of in-fiber Bragg grating sensors using volume holograms

Stephen W. James, Michael L. Dockney, Ralph P. Tatam

Proceedings Volume 2838, Distributed and Multiplexed Fiber Optic Sensors VI; (1996) https://doi.org/10.1117/12.259815
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

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.

Citation Download Citation

Stephen W. James, Michael L. Dockney, and Ralph P. Tatam "Demodulation of in-fiber Bragg grating sensors using volume holograms", Proc. SPIE 2838, Distributed and Multiplexed Fiber Optic Sensors VI, (27 November 1996); https://doi.org/10.1117/12.259815

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