1 December 1991 Parallel coherence receiver for quasidistributed optical sensor
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Abstract
We present the implementation of a coherence receiver that is able, in parallel, to demultiplex and measure the phase between up to seven interference signals generated in a "white light" polarimeiric quasi-distributed sensing system. It is based on a Michelson interferometer, one mirror of which has seven reflecting facets with differing thicknesses in its aperture. It was further used to measure the phase variation, between two polarization couplers, versus three point bending loading for optical fibres either surface bonded or embedded in GRP composite.In both cases, the sensitivity to the composite elongation is found in close agreennt with the sensitivity of the fibre itself.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pierre Sansonetti, Jean-Jacques Guerin, Michel Lequime, J. Debrie, "Parallel coherence receiver for quasidistributed optical sensor", Proc. SPIE 1588, Fiber Optic Smart Structures and Skins IV, (1 December 1991); doi: 10.1117/12.50173; https://doi.org/10.1117/12.50173
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