Abstract:International audienceWe have successfully developed a new design of an extrinsic fibre Fabry-Perot interferometer (EFPI) sensor dedicated to the characterization of vibration and displacement of a target. This device, based on a low finesse Fabry-Perot cavity formed by the end of a 'sensing' optical fibre and the target, gives information on the direction of the motion without the use of an additional reference arm. The incoming light, emitted by a 1310 nm laser diode, is decomposed according to two orthogona… Show more
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