Optical fiber sensor

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United States of America Patent

PATENT NO 10126163
APP PUB NO 20180003551A1
SERIAL NO

15541332

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A fiber optic sensor for detecting an excitation in proximity to a fiber optic assembly, the excitation inducing a modulation of the phase of an optical signal propagating in the fiber optic assembly, the sensor comprises: a laser assembly emitting at least one laser beam; a fiber optic assembly; an optical system configured to: inject at least one portion of the laser beam; generate at least one laser signal beam issued from the laser beam injected into and propagated in the fiber assembly; generate at least one reference beam from the laser beam or the signal beam; produce at least one interference zone corresponding to the interference between a portion of the reference beam and a portion of the interference signal beam corresponding to the interference between a portion of the reference beam and a portion of the signal beam; a digital holography assembly comprising: a liquid-crystal spatial light modulator; a video camera configured to receive the interference zone and to transcribe it electrically to the liquid-crystal spatial light modulator in order to create thereon a phase hologram corresponding thereto; at least one optical detector configured to detect an output optical signal beam.

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Patent Owner(s)

Patent OwnerAddress
THALESTOUR CARPE DIEM PLACE DES COROLLES ESPLANADE NORD COURBEVOIE 92400
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE3 RUE MICHEL-ANGE PARIS CEDEX 16 75794
UNIVERSITE NICE SOPHIA-ANTIPOLIS28 AVENUE VALROSE NICE CEDEX 2 06103

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bortolozzo, Umberto Juan les Pins, FR 5 15
Dolfi, Daniel Orsay, FR 24 318
Huignard, Jean-Pierre Paris, FR 87 1907
Molin, Stéphanie Draveil, FR 6 27
Peigne, Arnaud Mougins, FR 2 8
Residori, Stefania Juan les Pins, FR 4 14

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