Dr. Jean-Paul V. Gaffard Profile

Dr. Jean-Paul V. Gaffard

Chief Engineer

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Author

Publications (22)

Proceedings Article | 22 November 1996 Paper

Active bimorph structure for x-ray gratings and mirrors

Jean-Paul Gaffard, Pascal Jagourel

Proceedings Volume 2856, (1996) https://doi.org/10.1117/12.259872

KEYWORDS: Mirrors, Wavefronts, Sensors, Disk lasers, Electrodes, Image sensors, Charge-coupled devices, Receivers, Beam splitters, Wavefront sensors

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Proceedings Article | 31 May 1994 Paper

Performance and results of the COME-ON+ adaptive optics system at the ESO 3.6-m telescope

Gerard Rousset, Jean-Luc Beuzit, Norbert Hubin, Eric Gendron, Pierre-Yves Madec, Corinne Boyer, Jean-Paul Gaffard, Jean-Claude Richard, M. Vittot, Pierre Gigan, Pierre Lena

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176020

KEYWORDS: Stars, Cameras, Adaptive optics, Mirrors, Wavefronts, Astronomy, Wavefront sensors, Telescopes, Deformable mirrors, Turbulence

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Proceedings Article | 31 May 1994 Paper

Adaptive optics: description of available components at Laserdot

Jean-Paul Gaffard, Pascal Jagourel, Pierre Gigan

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176105

KEYWORDS: Mirrors, Adaptive optics, Astronomy, Electrodes, Actuators, Telescopes, Deformable mirrors, Astronomical telescopes, Surface finishing, Optics manufacturing

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Proceedings Article | 31 May 1994 Paper

Adaptive optics: a method for real-time optimization of the loop gains in AO systems

Jean-Paul Gaffard, Corinne Boyer

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176124

KEYWORDS: Adaptive optics, Wavefronts, Astronomy, Mirrors, Error control coding, Stars, Actuators, Control systems, Bismuth, Wavefront sensors

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Proceedings Article | 31 May 1994 Paper

Adaptive optics: a general purpose system for astronomy

Jean-Jacques Roland, Jean-Paul Gaffard, Pascal Jagourel, Corinne Boyer, Patrick Gosselin

Proceedings Volume 2201, (1994) https://doi.org/10.1117/12.176083

KEYWORDS: Adaptive optics, Mirrors, Astronomy, Actuators, Telescopes, Wavefront sensors, Wavefronts, Stars, Control systems, Charge-coupled devices

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Proceedings Article | 25 August 1993 Paper

X-ray adaptive mirror: principle and state of the art

Jean-Paul Gaffard, R. Ravelet, Corinne Boyer

Proceedings Volume 1920, (1993) https://doi.org/10.1117/12.152658

KEYWORDS: Mirrors, X-rays, Actuators, Adaptive optics, Process control, Signal processing, Wavefronts, Sensors, Collimators, Signal detection

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Proceedings Article | 25 August 1993 Paper

Adaptive optics: choices and optimization

Jean-Paul Gaffard, Patrick Gosselin, Guy Ledanois

Proceedings Volume 1920, (1993) https://doi.org/10.1117/12.152678

KEYWORDS: Mirrors, Adaptive optics, Stars, Wavefronts, Telescopes, Sensors, Actuators, Control systems, Wavefront sensors, Electrodes

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Proceedings Article | 15 April 1993 Paper

Adaptive optics for high-resolution imagery: control algorithms for optimized modal corrections

Jean-Paul Gaffard

Proceedings Volume 1780, 17802B (1993) https://doi.org/10.1117/12.142883

KEYWORDS: Wavefronts, Mirrors, Deformable mirrors, Adaptive optics, Actuators, Optical design, Wavefront sensors, Turbulence, Signal to noise ratio, Sensors

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Proceedings Article | 25 February 1993 Paper

X-ray adaptive mirror: principle and state of the art

Jean-Paul Gaffard, R. Ravelet, Corinne Boyer

Proceedings Volume 1739, (1993) https://doi.org/10.1117/12.140513

KEYWORDS: Mirrors, X-rays, Actuators, Heat flux, Thermal engineering, Adaptive optics, Process control, Signal processing, Wavefronts, Sensors

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Proceedings Article | 1 March 1992 Paper

Machine vision system for real-time obstacle detection

Genevieve Chabassier, Jean-Paul Gaffard, J. Lassau

Proceedings Volume 1615, (1992) https://doi.org/10.1117/12.58825

KEYWORDS: Machine vision, Laser development, Mobile robots, Roads, Pulsed laser operation, Backscatter, Photodetectors, 3D image processing, 3D scanning, Laser systems engineering

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Proceedings Article | 13 January 1992 Paper

Adaptive optics components in Laserdot

Pascal Jagourel, Jean-Paul Gaffard

Proceedings Volume 1543, (1992) https://doi.org/10.1117/12.51170

KEYWORDS: Mirrors, Actuators, Adaptive optics, Optical components, Deformable mirrors, Electrodes, Polishing, Sensors, Laser optics, Telescopes

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Proceedings Article | 1 December 1991 Paper

Come-on-plus project: an upgrade of the come-on adaptive optics prototype system

Eric Gendron, Jean Gabriel Cuby, Francois Rigaut, Pierre Lena, Jean-Claude Fontanella, Gerard Rousset, Jean-Paul Gaffard, Corinne Boyer, Jean-Claude Richard, M. Vittot, Fritz Merkle, Norbert Hubin

Proceedings Volume 1542, (1991) https://doi.org/10.1117/12.48818

KEYWORDS: Adaptive optics, Mirrors, Wavefront sensors, Astronomy, Wavefronts, Sensors, Actuators, Turbulence, Prototyping, Active optics

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Proceedings Article | 1 December 1991 Paper

Adaptive optical transfer function modeling

Jean-Paul Gaffard, Guy Ledanois

Proceedings Volume 1542, (1991) https://doi.org/10.1117/12.48792

KEYWORDS: Optical transfer functions, Control systems, Mirrors, Adaptive optics, Active optics, Wavefronts, Phase measurement, Actuators, Error analysis, Diffraction

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Proceedings Article | 1 December 1991 Paper

Adaptive optics system tests at the ESO 3.6-m telescope

Fritz Merkle, G. Gehring, Francois Rigaut, Pierre Lena, Gerard Rousset, Jean-Claude Fontanella, Jean-Paul Gaffard

Proceedings Volume 1542, (1991) https://doi.org/10.1117/12.48819

KEYWORDS: Adaptive optics, Wavefronts, Stars, Telescopes, Diffraction, Wavefront sensors, Infrared imaging, Infrared radiation, Cameras, K band

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Proceedings Article | 1 December 1991 Paper

Adaptive optics, transfer loops modeling

Corinne Boyer, Jean-Paul Gaffard

Proceedings Volume 1542, (1991) https://doi.org/10.1117/12.48793

KEYWORDS: Actuators, Mirrors, Control systems, Adaptive control, Adaptive optics, Systems modeling, Wavefronts, Wavefront sensors, Active optics, Optical amplifiers

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Proceedings Article | 1 July 1991 Paper

Adaptive optical transfer function modeling

Jean-Paul Gaffard, Corinne Boyer

Proceedings Volume 1483, (1991) https://doi.org/10.1117/12.45733

KEYWORDS: Optical transfer functions, Control systems, Mirrors, Actuators, Signal processing, Performance modeling, Systems modeling, Device simulation, Image processing, Phase measurement

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Proceedings Article | 1 July 1991 Paper

Adaptive optics, transfer loops modeling

Corinne Boyer, Jean-Paul Gaffard, Jean-Pierre Barrat, Yves Lecluse

Proceedings Volume 1483, (1991) https://doi.org/10.1117/12.45732

KEYWORDS: Actuators, Mirrors, Control systems, Systems modeling, Performance modeling, Signal processing, Adaptive control, Device simulation, Adaptive optics, Image processing

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Proceedings Article | 1 August 1990 Paper

Adaptive optics: effect of sampling rate and time lags on the closed loop bandwidth

Jean-Paul Gaffard, Corinne Boyer

Proceedings Volume 1271, (1990) https://doi.org/10.1117/12.20393

KEYWORDS: Adaptive optics, Wavefronts, Charge-coupled devices, Mirrors, Optical amplifiers, CCD cameras, Actuators, Wavefront sensors, Image processing, Analog electronics

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Proceedings Article | 1 August 1990 Paper

Adaptive optics prototype system for infrared astronomy, I: system description

Pierre Kern, Pierre Lena, Pierre Gigan, Francois Rigaut, Gerard Rousset, Jean-Claude Fontanella, Jean-Paul Gaffard, Corinne Boyer, Pascal Jagourel, Fritz Merkle

Proceedings Volume 1271, (1990) https://doi.org/10.1117/12.20411

KEYWORDS: Adaptive optics, Wavefronts, Mirrors, Deformable mirrors, Computing systems, Prototyping, Telescopes, Wavefront sensors, Infrared imaging, Actuators

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Proceedings Article | 1 August 1990 Paper

Adaptive optics: effect of sampling rate and time lags on the closed-loop bandwidth

Jean-Paul Gaffard, Corinne Boyer

Proceedings Volume 1237, (1990) https://doi.org/10.1117/12.19311

KEYWORDS: Wavefronts, Charge-coupled devices, Mirrors, Interferometry, CCD cameras, Actuators, Amplifiers, Adaptive optics, Wavefront sensors, Optical amplifiers

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Proceedings Article | 1 August 1990 Paper

Adaptive optics prototype system for infrared astronomy: I. System description

Gerard Rousset, Jean-Claude Fontanella, Pierre Kern, Pierre Lena, Pierre Gigan, Francois Rigaut, Jean-Paul Gaffard, Corinne Boyer, Pascal Jagourel, Fritz Merkle

Proceedings Volume 1237, (1990) https://doi.org/10.1117/12.19305

KEYWORDS: Adaptive optics, Mirrors, Deformable mirrors, Wavefronts, Prototyping, Telescopes, Infrared imaging, Actuators, Wavefront sensors, Computing systems

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Proceedings Article | 1 July 1990 Paper

First diffraction-limited astronomical images with adaptive optics

Fritz Merkle, Gerard Rousset, Pierre Kern, Jean-Paul Gaffard

Proceedings Volume 1236, (1990) https://doi.org/10.1117/12.19189

KEYWORDS: Adaptive optics, Telescopes, Stars, Astronomy, Prototyping, Wavefront sensors, Optical telescopes, Infrared radiation, Mirrors, Infrared imaging

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Showing 5 of 22 publications

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