Volume Holographie Demodulation of In-Fibre Bragg Grating Sensor Arrays

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

doi:10.1364/OFS.1996.Fr24

Optical Fiber Sensors
(Optica Publishing Group, 1996),
paper Fr24
•https://doi.org/10.1364/OFS.1996.Fr24

Volume Holographie Demodulation of In-Fibre Bragg Grating Sensor Arrays

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

Optical Fiber Sensors 1996

Sapporo Japan
ISBN: 0-8194-3044-7

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OFS (Fr2)

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S. W. James, M. L. Dockney, and R. P. Tatam, "Volume Holographie Demodulation of In-Fibre Bragg Grating Sensor Arrays," in Optical Fiber Sensors, (Optica Publishing Group, 1996), paper Fr24.

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Abstract

A demodulation scheme for an in fibre Bragg grating sensor using a volume holographic filter formed in photorefractive BaTiO₃ is proposed and demonstrated. A strain range of 2500 μstrain, with minimum detectable strain of 4μstrain/√Hz, is measured. Extension of the technique to allow demodulation of arrays of sensors is discussed.

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