Ms. Marie-Thérèse Velluet Profile

Marie-Thérèse Velluet

at ONERA

SPIE Involvement:

Author

Publications (25)

SPIE Journal Paper | 13 December 2023 Open Access

Open Access

Emulating and characterizing strong turbulence conditions for space-to-ground optical links: the PICOLO bench

Pablo Robles, Cyril Petit, Marie-Thérèse Velluet, Louis Le Leuch, Aurélie Montmerle-Bonnefois, Laurie Paillier, Jean-Marc Conan, Frédéric Cassaing, Joseph Montri, Benoit Neichel, Nicolas Védrenne

JATIS, Vol. 9, Issue 04, 049002, (December 2023) https://doi.org/10.1117/12.10.1117/1.JATIS.9.4.049002

KEYWORDS: Turbulence, Scintillation, Telescopes, Numerical simulations, Displays, Adaptive optics, Satellites, Wind speed, Manufacturing, Atmospheric propagation

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Proceedings Article | 12 July 2023 Open Access

Open Access

Paper

FEELINGS, ONERA's optical ground terminal for AO pre-compensated GEO feeder links demonstration

A. Bonnefois, C. Petit, J.M. Conan, A. Durecu, F. Gustave, C. Lim, J. Montri, L. Paillier, P. Perrault, M.T. Velluet, J.B. Volatier, N. Vedrenne

Proceedings Volume 12777, 127771P (2023) https://doi.org/10.1117/12.2689677

KEYWORDS: Adaptive optics, Design and modelling, Turbulence, Modulation, Astronomical imaging, Telescopes, Satellites, Atmospheric optics, Wavefront sensors, Telecommunications

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Proceedings Article | 11 June 2021 Open Access

Open Access

Presentation + Paper

Performance analysis of an adaptive optics based optical feeder link ground station

Nicola Vedrenne, Cyril Petit, A. Montmerle-Bonnefois, C. Lim, J.-M. Conan, L. Paillier, M.-T. Velluet, K. Caillault, F. Gustave, A. Durecu, V. Michau, F. Cassaing, S. Meimon, J. Montri

Proceedings Volume 11852, 1185219 (2021) https://doi.org/10.1117/12.2599232

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

First error budget of a deployable CubeSat telescope

J.-F. Sauvage, N. Schwartz, S. Vievard, A. Bonnefois, M.-T. Velluet, C. Correia, F. Cassaing, T. Fusco, V. Michau, J.-C. Krapez, M. Ferrari, I. Laginja

Proceedings Volume 11443, 1144330 (2020) https://doi.org/10.1117/12.2561697

KEYWORDS: Telescopes, Image segmentation, Image resolution, Diffraction, Temporal resolution, Spatial resolution, Satellites, Mirrors, Imaging systems, Optical resolution

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Proceedings Article | 22 October 2020 Presentation + Paper

Presentation + Paper

PICOLO: turbulence simulator for adaptive optics systems assessment in the context of ground-satellite optical links

M.-T. Velluet, C. Petit, L. Le Leuch, A. Bonnefois, J.-M. Conan, F. Cassaing, N. Védrenne

Proceedings Volume 11532, 1153207 (2020) https://doi.org/10.1117/12.2573954

KEYWORDS: Adaptive optics, Turbulence, Optical simulations, Atmospheric propagation, Satellites, Scintillation, Optical communications, Wave propagation, Satellite communications, Data communications

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Proceedings Article | 31 October 2019 Paper

Paper

Characterization of the turbulent atmospheric channel of space-ground optical links with parametric models: description and cross-validation with mesoscale models and in situ measurements

Clélia Robert, Marie-Thérèse Velluet, Elena Masciadri, Alessio Turchi, Jean-Marc Conan, Nicolas Védrenne, Géraldine Artaud, Bouchra Benammar

Proceedings Volume 11153, 1115304 (2019) https://doi.org/10.1117/12.2534659

KEYWORDS: Data modeling, Atmospheric modeling, Atmospheric optics, Turbulence, Scintillation, Solar radiation models, Wavefront sensors, Calibration, Channel projecting optics, In situ metrology

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Proceedings Article | 9 October 2019 Presentation + Paper

Presentation + Paper

Data collection and preliminary results on turbulence characterisation and mitigation techniques

M. -T. Velluet, C. Bell, J. -F. Daigle, J. Dijk, S. Gladysz, A. Kanaev, A. Lambert, D. Lemaster, G. Potvin, M. Vorontsov

Proceedings Volume 11159, 111590Q (2019) https://doi.org/10.1117/12.2533821

KEYWORDS: Turbulence, Cameras, Laser beam propagation, Sensors, Image processing, Data modeling, Imaging systems

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Proceedings Article | 12 August 2019 Open Access

Open Access

Paper

Multiple aperture optical telescopes: some key issues for earth observation from a GEO orbit

L. Mugnier, F. Cassaing, B. Sorrente, F. Baron, M.-T. Velluet, V. Michau, G. Rousset

Proceedings Volume 10568, 105682Y (2019) https://doi.org/10.1117/12.2307983

KEYWORDS: Telescopes, Sensors, Space telescopes, Optical transfer functions, Optical design, Signal to noise ratio, Point spread functions, Interferometers, Optical telescopes, Optical instrument design

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Proceedings Article | 13 April 2018 Paper

Paper

Multiple-aperture optical telescopes: cophasing sensor testbed

B. Sorrente, F. Cassaing, F. Baron, C. Coudrain, B. Fleury, F. Mendez, L. Mugnier, V. Bentadj-Paris, V. Michau, J. Montri, G. Rousset, L. Rousset-Rouviere, M.-T. Velluet

Proceedings Volume 10568, 105682Q (2018) https://doi.org/10.1117/12.2500123

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Proceedings Article | 3 April 2018 Open Access

Open Access

Paper

Wavefront sensors for the active control of earth observation optical instruments

Marie-Thérèse Velluet, Vincent Michau, Gérard Rousset

Proceedings Volume 10570, 105701D (2018) https://doi.org/10.1117/12.2326489

KEYWORDS: Wavefronts, Wavefront sensors, Sensors, Error analysis, Active optics, Optical components, Geometrical optics, Phase measurement, Mirrors, Optical testing

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Proceedings Article | 5 October 2017 Presentation + Paper

Presentation + Paper

Power in the bucket and angle of arrival modelling in the presence of an airborne platform-induced turbulence

Marie-Thérèse Velluet

Proceedings Volume 10435, 104350G (2017) https://doi.org/10.1117/12.2278519

KEYWORDS: Turbulence, Atmospheric propagation, Data modeling, Atmospheric turbulence, Modeling, Sensors, Data analysis, Laser beam propagation

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Proceedings Article | 5 October 2017 Paper

Paper

Airborne platform effects on lasers and warning sensors

Markus Henriksson, Christian Eisele, Dirk Seiffer, Lars Sjöqvist, Fabio Togna, Marie-Thérèse Velluet

Proceedings Volume 10435, 104350M (2017) https://doi.org/10.1117/12.2277311

KEYWORDS: Directed infrared countermeasures, Turbulence, Modeling, Gases, Laser countermeasures, Airborne laser technology, Sensors, Optical turbulence, Laser beam propagation, Laser beam diagnostics

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Airborne platform effects on lasers and warning sensors (ALWS) has been a European collaborative research project to investigate the effects of platform-related turbulence on optical countermeasure systems, especially missile approach warning systems (MAWS) and directed infrared countermeasures (DIRCM). Field trials have been carried out to study the turbulence effects around a hovering helicopter and behind a turboprop aircraft with engines running on the ground. In addition different methods for modelling the effects have been investigated.

In the helicopter trials significant beam wander, scintillations and beam broadening were experienced by narrow divergence laser beams when passing through the down-wash of the hot engine exhaust gases. The measured effects considerably exceed the effects of atmospheric turbulence. Extraction of turbulence parameters for modelling of DIRCM-relevant scenarios show that in most cases the reduction of jamming power and distortion of jamming waveform can be expected to be small. The reduction of effects of turbulence is mainly related to the larger beam divergence and shorter Rayleigh length of DIRCM lasers compared to the experimental probe beams. Measurements using the turboprop platform confirm that tolerable effects on laser beam properties are found when the laser beam passes through the exhaust 15 m behind the outlet where the exhaust gases are starting to cool down.

Modelling efforts have shown that time-resolved computational fluid dynamics (CFD) calculations can be used to study properties of beam propagation in engine exhaust-related turbulence. Because of computational cost and the problem of validating the CFD results the use for system performance simulations is however difficult.

The hot exhaust gases emitted from aircraft engines create extreme optical turbulence in a local region. The effects on countermeasure system performance depend both on the system parameters and on the threat characteristics. With present-day DIRCM systems, the effects of even severe turbulence are often tolerable.

Proceedings Article | 24 February 2017 Presentation + Paper

Presentation + Paper

Optical ground station optimization for future optical geostationary satellite feeder uplinks

A-R. Camboulives, M-T. Velluet, S. Poulenard, L. Saint-Antonin, V. Michau

Proceedings Volume 10096, 1009608 (2017) https://doi.org/10.1117/12.2249994

KEYWORDS: Satellites, Signal detection, Atmospheric propagation, Atmospheric optics, Atmospheric turbulence, Turbulence, Laser beam propagation, Telescopes, Beam propagation method, Wavefront sensors, Scintillation

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SPIE Journal Paper | 14 September 2016

Investigation on adaptive optics performance from propagation channel characterization with the small optical transponder

Cyril Petit, Nicolas Védrenne, Marie-Thérèse Velluet, Vincent Michau, Geraldine Artaud, Etienne Samain, Morio Toyoshima

OE, Vol. 55, Issue 11, 111611, (September 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.11.111611

KEYWORDS: Adaptive optics, Turbulence, Telescopes, Scintillation, Satellites, Wavefronts, Wavefront sensors, Optical engineering, Magnesium, Telecommunications

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Proceedings Article | 15 March 2016 Paper

Paper

Telecom and scintillation first data analysis for DOMINO: laser communication between SOTA, onboard SOCRATES satellite, and MEO optical ground station

D.-H. Phung, E. Samain, N. Maurice, D. Albanesse, H. Mariey, M. Aimar, G. M. Lagarde, G. Artaud, J.-L. Issler, N. Vedrenne, M.-T. Velluet, M. Toyoshima, M. Akioka, D. Kolev, Y. Munemasa, H. Takenaka, N. Iwakiri

Proceedings Volume 9739, 973909 (2016) https://doi.org/10.1117/12.2218524

KEYWORDS: Satellites, Telescopes, Sensors, Zoom lenses, Doppler effect, Clouds, Scintillation, Photonic integrated circuits, Modulation, Space telescopes

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Proceedings Article | 27 October 2015 Paper

Paper

Quantification of helicopter rotor downwash effects on electro-optical defensive aids suites

Dirk Seiffer, Christian Eisele, Markus Henriksson, Lars Sjöqvist, Sebastian Möller, Fabio Togna, Marie-Thérèse Velluet

Proceedings Volume 9650, 96500I (2015) https://doi.org/10.1117/12.2195645

KEYWORDS: Missiles, Gases, Directed infrared countermeasures, Electro optics, Atmospheric propagation, Laser countermeasures, Sensors, Laser systems engineering, Turbulence, Refractive index

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Proceedings Article | 9 June 2014 Paper

Paper

Mosaïc active imaging: direct physical modeling and image reconstruction

Emmanuelle Thouin, Marie-Thérèse Velluet, Dominique Hamoir, Laurent Hespel, François Malgouyres, Xavier Briottet

Proceedings Volume 9080, 908007 (2014) https://doi.org/10.1117/12.2053022

KEYWORDS: Signal to noise ratio, Imaging systems, Sensors, Cameras, Atmospheric propagation, Image restoration, Turbulence, Laser beam propagation, Reconstruction algorithms, Image processing

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Proceedings Article | 5 May 2012 Paper

Paper

Turbulence characterization and image processing data sets from a NATO RTO SET 165 trial in Dayton, Ohio, USA

M.-T. Velluet, Mikhail Vorontsov, Piet Schwering, Gabriele Marchi, Stephane Nicolas, Jim Riker

Proceedings Volume 8380, 83800J (2012) https://doi.org/10.1117/12.920657

KEYWORDS: Turbulence, Atmospheric propagation, Wave propagation, Scintillation, Sensors, Receivers, Image processing, Adaptive optics, Cameras, Wavefront sensors

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Proceedings Article | 14 October 2010 Paper

Paper

SCALPEL: a long range free-space optical communication system with adaptive optics in the MIR bandwidth

A. Montmerle Bonnefois, R. Biérent, M. Raybaut, A. Godard, S. Derelle, A. Durécu, V. Michau, M. Lefebvre, N. Védrenne, M.-T. Velluet

Proceedings Volume 7828, 78280L (2010) https://doi.org/10.1117/12.865022

KEYWORDS: Telecommunications, Adaptive optics, Atmospheric optics, Free space optics, Charged-particle lithography, Turbulence, Free space optical communications, Atmospheric modeling, Optical calibration, Sensors

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Proceedings Article | 9 October 2010 Paper

Paper

Modeling of an active burst illumination imaging system: comparison between experimental and modelled 3D scene

N. Rivière, G. Anna, L. Hespel, B. Tanguy, M.-T. Velluet, Y.-M. Frédéric

Proceedings Volume 7835, 783509 (2010) https://doi.org/10.1117/12.864694

KEYWORDS: Atmospheric propagation, 3D modeling, Turbulence, Speckle, Imaging systems, Wave propagation, Sensors, Data modeling, Electro optical modeling, Light scattering

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Proceedings Article | 24 February 2009 Paper

Paper

Mitigation of atmospheric effects by adaptive optics for free-space optical communications

Noah Schwartz, Nicolas Védrenne, Vincent Michau, Marie-Thérèse Velluet, Frédéric Chazallet

Proceedings Volume 7200, 72000J (2009) https://doi.org/10.1117/12.808142

KEYWORDS: Atmospheric propagation, Turbulence, Mirrors, Phase modulation, Adaptive optics, Phase shift keying, Telecommunications, Free space optical communications, Telescopes, Atmospheric turbulence

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Proceedings Article | 25 September 2007 Paper

Paper

Coherent illumination for wavefront sensing and imaging through turbulence

M.-T. Velluet, V. Michau, T. Fusco, J.-M. Conan

Proceedings Volume 6708, 670808 (2007) https://doi.org/10.1117/12.740053

KEYWORDS: Turbulence, Atmospheric propagation, Spherical lenses, Wave propagation, Digital signal processing, Scintillation, Wavefront sensors, Atmospheric turbulence, Laser beam propagation, Atmospheric modeling

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Proceedings Article | 1 September 2006 Paper

Paper

Shack-Hartmann wavefront sensing with extended sources

V. Michau, J.-M. Conan, T. Fusco, M. Nicolle, C. Robert, M.-T. Velluet, E. Piganeau

Proceedings Volume 6303, 63030B (2006) https://doi.org/10.1117/12.682728

KEYWORDS: Wavefront sensors, Wavefronts, Data processing, Numerical modeling, Adaptive optics, Statistical analysis, Staring arrays, Correlation function, Turbulence, Image analysis

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Proceedings Article | 14 October 2005 Paper

Paper

Shack-Hartmann wavefront sensing error induced by laser illumination

M.-T. Velluet, G. Rousset, T. Fusco

Proceedings Volume 5981, 59810M (2005) https://doi.org/10.1117/12.628107

KEYWORDS: Turbulence, Speckle, Wavefronts, Scintillation, Wavefront sensors, Error analysis, Image sensors, Sensors, Optical simulations, Adaptive optics

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Proceedings Article | 30 September 1994 Paper

Paper

Automatic alignment system for telescopes

Marie-Therese Velluet, Marc Sechaud, Vincent Michau, Pierre-Yves Madec

Proceedings Volume 2210, (1994) https://doi.org/10.1117/12.188136

KEYWORDS: Monochromatic aberrations, Mirrors, Telescopes, Wavefronts, Optical components, Calibration, Wavefront sensors, Wavefront aberrations, Control systems, Ray tracing

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Showing 5 of 25 publications

Conference Committee Involvement (5)

Environmental Effects on Light Propagation and Adaptive Systems V

6 September 2022 | Berlin, Germany

Environmental Effects on Light Propagation and Adaptive Systems IV

13 September 2021 | Online Only, Spain

Environmental Effects on Light Propagation and Adaptive Systems III

23 September 2020 | Online Only, United Kingdom

Environmental Effects on Light Propagation and Adaptive Systems II

11 September 2019 | Strasbourg, France

Environmental Effects on Light Propagation and Adaptive Systems

12 September 2018 | Berlin, Germany

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