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Michel Papuchon, Sylvie Vatoux: Integrated optics polarizing device. Thomson-CSF, Cushman Darby & Cushman, October 18, 1988: US04778234 (35 worldwide citation)

An integrated optics polarizing device having a flat substrate made for example from lithium niobate, in which an integrated wave guide has been created by doping with titanium ions and one or more so called interaction regions interacting on the wave, formed within the material of the substrate, an ...


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Michel Papuchon, Claude Puech, Jean C Anne: Light intensity modulator with digital control and a digital-analog converter comprising such a modulator. Thomson-CSF, Cushman Darby & Cushman, September 8, 1981: US04288785 (35 worldwide citation)

The invention relates to a light intensity modulator controlled by a "word" of n bits and an opto-electronic digital-analog converter.


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Michel Papuchon, Claude Puech: Light intensity modulator in an integrated optical circuit with feedback means. Thomson-CSF, Oblon Fisher Spivak McClelland & Maier, July 20, 1982: US04340272 (34 worldwide citation)

The invention relates to a light intensity modulator, in integrated optics and an integrated optical circuit comprising such a modulator.


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Pierre Leclerc, Jean Pierre Huignard, Michel Papuchon, Claude Puech: Monomodal optical fibre hydrophone operating by the elastooptical effect. Thomson-CSF, Oblon Fisher Spivak McClelland & Maier, March 16, 1982: US04320475 (34 worldwide citation)

The hydrophone has an interferometer structure incorporating a measuring arm in which is provided a very long monomodal optical fibre immersed in the interaction medium in which is propagated the acoustic wave. A phase displacement is induced on the optical wave by the elastooptical effect and said ...


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Pierre Leclerc, Claude Puech, Michel Papuchon, Pierre Lallemand: Interferometric laser gyrometer. Thomson-CSF, Cushman Darby & Cushman, May 5, 1981: US04265541 (31 worldwide citation)

The interferometric laser gyrometer according to the invention comprises a laser source, a wound monomode optical fibre an a detector, the optical coupling between the source and the two ends of the optical fibre in order that these two ends receive equal parts of the light emitted by the source con ...


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Claude Puech, Michel Papuchon: Non-linear optical device with a composite waveguide and radiation source using such a device. Thomson-CSF, Cushman Darby & Cushman, January 24, 1984: US04427260 (29 worldwide citation)

Non-linear optical devices incorporating an integrated waveguide on a substrate, also relating to a non-linear optical device utilizing a passive layer covering the integrated waveguide making it possible by increasing the effective index ranges of the fundamental and harmonic radiations to obtain a ...


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Michel Papuchon, Brigitte Puech, Michel Werner: Non linear thin layer optical device. Thomson-CSF, Cushman Darby & Cushman, December 2, 1980: US04236785 (29 worldwide citation)

The invention relates to non-linear optical devices in which significant non-linear interactions are obtained by establishing a "quasi phase matching". The optical device according to the invention comprises on the surface of a substrate a periodic structure formed of zones in which the non-linear c ...


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Claude Puech, Herve Arditty, Michel Papuchon: Interferometric optical fiber electric current measuring device. Thomson-CSF, Oblon Fisher Spivak McClelland & Maier, January 25, 1983: US04370612 (29 worldwide citation)

The current-measuring device in accordance with the invention comprises an optical fiber wound around the conductor in which flows the current to be measured, a laser source, means for separating the radiation emitted by the source towards the two ends of the wound fiber, and for recombining the rad ...