Dr. Frédéric Cassaing Profile

Dr. Frédéric Cassaing

Senior Research Scientist at ONERA

SPIE Involvement:

Author

Publications (51)

Proceedings Article | 27 August 2024 Presentation + Paper

Presentation + Paper

PROVIDENCE: toward a 2.5m adaptive telescope for optical space domain awareness (but not only…)

C. Petit, T. Fusco, N. Védrenne, J.-F. Sauvage, G. Leplat, D. Barbon-Dubosc, C. Adami, T. Advani, P.-E. Blanc, A. Bonnefois, S. Basa, F. Cassaing, E. Coiro, F. De La Barrière, F. Dolon, R. Fetick, M. Ferrari, J. Floriot, Y.-M. Frederick, F. Gustave, P.-E. Haensler, C. Heritier, L. Hespel, P. Jouve, V. Michau, L. Mugnier, B. Neichel, U. Tricoli, P. Vernazza

Proceedings Volume 13097, 130970N (2024) https://doi.org/10.1117/12.3019661

KEYWORDS: Telescopes, Adaptive optics, Satellites, Wavefront sensors, Turbulence, Astronomy, Equipment, Point spread functions, Imaging systems, Telecommunications

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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

Interferometric imaging as an alternative to telescopes

Hiyam Debary, Vincent Michau, Laurent Mugnier, Frédéric Cassaing, Matthieu Castelnau, Sébastien Lopez

Proceedings Volume 12777, 127770C (2023) https://doi.org/10.1117/12.2688803

KEYWORDS: Spatial frequencies, Imaging systems, Interferometry, Telescopes, Equipment, Interferometers, Photons, Visibility, Spatial resolution, Photonic integrated circuits

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Proceedings Article | 29 August 2022 Presentation

Presentation

Linearized Analytical Phase Diversity : towards lab and on-sky demonstration on the Subaru Telescope

Sébastien Vievard, Aurélie Bonnefois, Frédéric Cassaing, Laurent Mugnier, Jean-François Sauvage, Olivier Guyon, Julien Lozi, Vincent Deo, Kyohoon Ahn, Nour Skaf

Proceedings Volume 12185, 121850W (2022) https://doi.org/10.1117/12.2629122

KEYWORDS: Telescopes, Sensors, Large telescopes, Wavefront sensors, Thirty Meter Telescope, Segmented mirrors, Exoplanets, Cameras, Analytical research, Adaptive optics

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Proceedings Article | 27 August 2022 Poster + Paper

Poster + Paper

Analysis of a compact interferometric imager

L. Mugnier, V. Michau, H. Debary, F. Cassaing

Proceedings Volume 12180, 121803J (2022) https://doi.org/10.1117/12.2629311

KEYWORDS: Imaging systems, Interferometry, Spatial frequencies, Photons, Photonic integrated circuits, Visibility, Modulation transfer functions, Interferometers, Telescopes, Waveguides

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Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

SPICA-FT: the new fringe tracker of the CHARA array

Cyril Pannetier, Philippe Bério, Denis Mourard, Sylvain Rousseau, Fatmé Allouche, Julien Dejonghe, Christophe Bailet, Daniel Lecron, Frédéric Cassaing, Jean-Baptiste Le Bouquin, Karine Perraut, John Monnier, Narsireddy Anugu, Theo ten Brummelaar

Proceedings Volume 12183, 1218309 (2022) https://doi.org/10.1117/12.2628897

KEYWORDS: Telescopes, Signal to noise ratio, Optical fibers, Spectrographs, Integrated optics, Stars, Phase shifts, Manufacturing, Visibility

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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 | 13 December 2020 Presentation + Paper

Presentation + Paper

Progress of the CHARA/SPICA project

C. Pannetier, D. Mourard, P. Berio, F. Cassaing, F. Allouche, N. Anugu, C. Bailet, T. ten Brummelaar, J. Dejonghe, D. Gies, L. Jocou, S. Kraus, S. Lacour, S. Lagarde, J. B. Le Bouquin, D. Lecron, J. Monnier, N. Nardetto, F. Patru, K. Perraut, R. Petrov, S. Rousseau, P. Stee, J. Sturmann, L. Sturmann

Proceedings Volume 11446, 114460T (2020) https://doi.org/10.1117/12.2560625

KEYWORDS: Glasses, Stars, Fourier transforms, Optical tracking, Photons, Integrated optics, Coherence (optics), Atmospheric optics, Planets, Interferometry

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Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Focal plane wavefront sensing on SUBARU/SCExAO

S. Vievard, S. Bos, F. Cassaing, T. Currie, V. Deo, O. Guyon, N. Jovanovic, C. Keller, M. Lamb, C. Lopez, J. Lozi, F. Martinache, K. Miller, A. Montmerle-Bonnefois, L. Mugnier, M. N'Diaye, B. Norris, A. Sahoo, J.-F. Sauvage, N. Skaf, F. Snik, M. Wilby, A. Wong

Proceedings Volume 11448, 114486D (2020) https://doi.org/10.1117/12.2562787

KEYWORDS: Wavefront sensors, Coronagraphy, Adaptive optics, Telescopes, Thermal effects, Exoplanets, Large telescopes, Spatial resolution, Sensors, Domes

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SPIE Journal Paper | 11 December 2020

Cophasing multiple aperture telescopes with linearized analytic phase diversity

Sébastien Vievard, Aurélie Bonnefois, Frédéric Cassaing, Joseph Montri, Laurent Mugnier

JATIS, Vol. 6, Issue 04, 040501, (December 2020) https://doi.org/10.1117/12.10.1117/1.JATIS.6.4.040501

KEYWORDS: Telescopes, Error analysis, James Webb Space Telescope, Sensors, Point spread functions, Wavefront sensors, Mirrors, Algorithm development, Wavefronts, Fourier transforms

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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 | 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 | 28 February 2019 Presentation + Paper

Presentation + Paper

Visualizing and enhancing axial resolution in nonconfocal adaptive optics ophthalmoscopy

Pedro Mecê, Elena Gofas-Salas, Kate Grieve, Cyril Petit, Frédéric Cassaing, José Sahel, Michel Paques, Serge Meimon

Proceedings Volume 10858, 108580P (2019) https://doi.org/10.1117/12.2508605

KEYWORDS: Image resolution, Adaptive optics, Imaging systems, Visualization, Point spread functions, Image enhancement, Optical resolution, Tomography

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Proceedings Article | 6 August 2018 Paper

Paper

Real-time full alignment and phasing of multiple-aperture imagers using focal-plane sensors on unresolved objects

S. Vievard, F. Cassaing, L. Mugnier, A. Bonnefois, J. Montri

Proceedings Volume 10698, 106986F (2018) https://doi.org/10.1117/12.2312580

KEYWORDS: Error analysis, Telescopes, Optical transfer functions, Point spread functions, Imaging systems, Numerical simulations, Cameras, Fourier transforms, Segmented mirrors, Wavefront sensors

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Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

SPICA, a new 6T visible beam combiner for CHARA: science, design and interfaces

Denis Mourard, Nicolas Nardetto, Theo ten Brummelaar, Christophe Bailet, Philippe Berio, Yves Bresson, Frédéric Cassaing, Jean-Michel Clausse, Julien Dejonghe, Stéphane Lagarde, Marc-Antoine Martinod, Vincent Michau, Karine Perraut, Cyril Petit, Michel Tallon, Isabelle Tallon-Bosc

Proceedings Volume 10701, 1070120 (2018) https://doi.org/10.1117/12.2311869

KEYWORDS: Stars, Adaptive optics, Sensors, Interferometry, Optical fibers, Telescopes, Single mode fibers, Integrated optics, Visible radiation, Planets

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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

Eléments-clés de la conception d'un instrument spatial à synthése d'ouverture optique

Frédéric Cassaing, Laurent Mugnier, Gérard Rousset, Béatrice Sorrente

Proceedings Volume 10570, 105700R (2018) https://doi.org/10.1117/12.2326465

KEYWORDS: Telescopes, Lanthanum, Transparent conductors, Space telescopes, Interferometry, Cerium, Modulation, Metrology, System on a chip, Microelectromechanical systems

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Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

High resolution earth observation from geostationary orbit by optical aperture synthesys

M. Mesrine, E. Thomas, S. Garin, P. Blanc, C. Alis, F. Cassaing, D. Laubier

Proceedings Volume 10567, 105670B (2017) https://doi.org/10.1117/12.2308095

KEYWORDS: Interferometers, Mirrors, Telescopes, Image quality, Image processing, Modulation transfer functions, Michelson interferometers, Device simulation, Signal to noise ratio, Space telescopes

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Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

PEGASE: a free flying interferometer for the spectroscopy of giant exo-planets

J.-M. Le Duigou, M. Ollivier, A. Léger, F. Cassaing, B. Sorrente, B. Fleury, G. Rousset, O. Absil, D. Mourard, Y. Rabbia, L. Escarrat, F. Malbet, D. Rouan, R. Clédassou, M. Delpech, P. Duchon, B. Meyssignac, P.-Y. Guidotti, N. Gorius

Proceedings Volume 10567, 1056702 (2017) https://doi.org/10.1117/12.2308110

KEYWORDS: Sensors, Signal to noise ratio, Interferometers, Spectroscopy, Astronomical imaging, Metrology, Gallium arsenide, Bismuth, Stars

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Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

Towards a laboratory breadboard for PEGASE, the DARWIN pathfinder

F. Cassaing, J.-M. Le Duigou, B. Sorrente, B. Fleury, N. Gorius, F. Brachet, C. Buisset, M. Ollivier, F. Hénault, D. Mourard, Y. Rabbia, M. Delpech, P.-Y. Guidotti, A. Léger, M. Barillot, D. Rouan, G. Rousset

Proceedings Volume 10567, 105670L (2017) https://doi.org/10.1117/12.2308162

KEYWORDS: Nulling interferometry, Sensors, Stars, Mirrors, Satellites, Polarization, Interferometers, Interferometry, Modulation, Calibration

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Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

Technological aspects and results from the DARWIN fringe sensor predevelopment

Hans Thiele, Stefan Hofer, Timo Stuffler, Frederic Cassaign, Isabelle Mocoeur, Laurent Mugnier, Marc Barillot, Yves Salvadé, Igor Zayer

Proceedings Volume 10567, 105670K (2017) https://doi.org/10.1117/12.2308056

KEYWORDS: Sensors, Telescopes, Space telescopes, Fermium, Frequency modulation, Calibration, Optical testing, Interferometers, Detection and tracking algorithms, Point spread functions

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Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

PERSEE: a nulling interferometer with dynamic correction of external perturbations

S. Jacquinod, K. Houairi, J.-M. Le Duigou, M. Barillot, F. Cassaing, J.-M. Réess, F. Hénault, B. Sorrente, G. Morinaud, J.-P. Amans, V. Coudé du Foresto, M. Ollivier

Proceedings Volume 10566, 105660W (2017) https://doi.org/10.1117/12.2308245

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Proceedings Article | 20 November 2017 Open Access

Open Access

Paper

First results of the PERSEE experiment

J.-M. Le Duigou, J. Lozi, F. Cassaing, K. Houairi, B. Sorrente, J. Montri, S. Jacquinod, J.-M. Reess, L. Pham, E. Lhomé, T. Buey, F. Hénault, A. Marcotto, P. Girard, N. Mauclert, M. Barillot, V. Coudé du Foresto, M. Ollivier

Proceedings Volume 10565, 105650W (2017) https://doi.org/10.1117/12.2309159

KEYWORDS: Astronomical imaging, Mirrors, Nulling interferometry, Satellites, Space operations, Sensors, Calibration, Phase shifts, Autocollimation, Colorimetry

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Although it has been recently postponed due to high cost and risks, nulling interferometry in space remains one of the very few direct detection methods able to characterize extrasolar planets and particularly telluric ones. Within this framework, several projects such as DARWIN [1], [2], TPF-I [3], [4], FKSI [5] or PEGASE [6], [7], have been proposed in the past years. Most of them are based on a free flying concept. It allows firstly to avoid atmosphere turbulence, and secondly to distribute instrumental function over many satellites flying in close formation. In this way, a very high angular resolution can be achieved with an acceptable launch mass. But the price to pay is to very precisely position and stabilize relatively the spacecrafts, in order to achieve a deep and stable extinction of the star. Understanding and mastering all these requirements are great challenges and key issues towards the feasibility of these missions. Thus, we decided to experimentally study this question and focus on some possible simplifications of the concept.

Since 2006, PERSEE (PEGASE Experiment for Research and Stabilization of Extreme Extinction) laboratory test bench is under development by a consortium composed of Centre National d’Etudes Spatiales (CNES), Institut d’Astrophysique Spatiale (IAS), Observatoire de Paris-Meudon (LESIA), Observatoire de la Côte d’Azur (OCA), Office National d’Etudes et de Recherches Aérospatiales (ONERA), and Thalès Alénia Space (TAS) [8]. It is mainly funded by CNES R&D. PERSEE couples an infrared wide band nulling interferometer with local OPD and tip/tilt control loops and a free flying Guidance Navigation and Control (GNC) simulator able to introduce realistic disturbances. Although it was designed in the framework of the PEGASE free flying space mission, PERSEE can adapt very easily to other contexts like FKSI (in space, with a 10 m long beam structure) or ALADDIN [9] (on ground, in Antarctica) because the optical designs of all those missions are very similar. After a short description of the experimental setup, we will present first the results obtained in an intermediate configuration with monochromatic light. Then we will present some preliminary results with polychromatic light. Last, we discuss some very first more general lessons we can already learn from this experiment.

Proceedings Article | 20 November 2017 Open Access

Open Access

Paper

Final results of the PERSEE experiment

J.-M. Le Duigou, J. Lozi, F. Cassaing, K. Houairi, B. Sorrente, J. Montri, S. Jacquinod, J.-M. Réess, L. Pham, E. Lhomé, T. Buey, F. Hénault, A. Marcotto, P. Girard, N. Mauclert, M. Barillot, V. Coudé du Foresto, M. Ollivier

Proceedings Volume 10564, 105640E (2017) https://doi.org/10.1117/12.2309220

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Proceedings Article | 8 August 2016 Paper

Paper

Real-time alignment and co-phasing of multi-aperture systems using phase diversity

S. Vievard, F. Cassaing, A. Bonnefois, L. Mugnier, J. Montri

Proceedings Volume 9906, 99062Q (2016) https://doi.org/10.1117/12.2230679

KEYWORDS: Sensors, Space telescopes, Telescopes, Interferometry, Space telescopes, Optical transfer functions, Algorithm development, Mirrors, Error analysis, Point spread functions, Aberration correction

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Proceedings Article | 31 May 2013 Paper

Paper

Real-time focal-plane wavefront sensing for compact imaging phased-array telescopes: numerical and experimental demonstration

B. Denolle, F. Cassaing, J. Montri, J. Lisowski, J. P. Amans

Proceedings Volume 8713, 87130J (2013) https://doi.org/10.1117/12.2015860

KEYWORDS: Mirrors, Sensors, Optical transfer functions, Image processing, Wavefront sensors, Phase retrieval, Algorithm development, Adaptive optics, Detection and tracking algorithms, Telescopes

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Proceedings Article | 12 September 2012 Paper

Paper

Final results of the PERSEE experiment

J. M. Le Duigou, J. Lozi, F. Cassaing, K. Houairi, B. Sorrente, J. Montri, S. Jacquinod, J.-M. Reess, L. Pham, E. Lhome, T. Buey, F. Hénault, A. Marcotto, P. Girard, N. Mauclert, M. Barillot, V. Coudé du Foresto, M. Ollivier

Proceedings Volume 8445, 844525 (2012) https://doi.org/10.1117/12.925350

KEYWORDS: Calibration, Mirrors, Cameras, Space operations, Nulling interferometry, Sensors, Satellites, Beam splitters, Signal to noise ratio, Collimators

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Proceedings Article | 15 September 2011 Paper

Paper

Current results of the PERSEE testbench: the cophasing control and the polychromatic null rate

J. Lozi, F. Cassaing, J.-M. Le Duigou, B. Sorrente, J. Montri, J.-M. Reess, E. Lhome, T. Buey, F. Hénault, A. Marcotto, P. Girard, M. Barillot, M. Ollivier, V. Coudé du Foresto

Proceedings Volume 8151, 81510B (2011) https://doi.org/10.1117/12.894275

KEYWORDS: Calibration, Cameras, Space operations, Polarization, Interferometers, Metrology, Nulling interferometry, Satellites, Sensors, Fourier transforms

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Proceedings Article | 15 September 2011 Paper

Paper

Design of a star, planet and exo-zodiacal cloud simulator for the nulling testbench PERSEE

François Hénault, Paul Girard, Aurelie Marcotto, Nicolas Mauclert, Christophe Bailet, Bruno Lopez, Florentin Millour, Yves Rabbia, Alain Roussel, Marc Barillot, Julien Lozi, Frederic Cassaing, Kamel Houairi, Beatrice Sorrente, Joseph Montri, Emilie Lhome, Jean-Michel Reess, Laurie Pham, Jean-Tristan Buey, Vincent Coudé du Foresto, Sophie Jacquinod, Marc Ollivier, Jean-Michel Le Duigou

Proceedings Volume 8151, 815116 (2011) https://doi.org/10.1117/12.892748

KEYWORDS: Stars, Planets, Surface plasmons, Interferometers, Mirrors, Clouds, Reflectivity, Single mode fibers, Transmittance, Light sources

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Proceedings Article | 28 July 2010 Paper

Paper

A focal plane sensor for low-order sensing on laser tomographic systems: LIFT

Serge Meimon, Thierry Fusco, Frederic Cassaing

Proceedings Volume 7736, 773611 (2010) https://doi.org/10.1117/12.857291

KEYWORDS: Sensors, Signal to noise ratio, Monochromatic aberrations, Error analysis, Tomography, Laser systems engineering, Sensing systems, Stars, Wavefront sensors, Adaptive optics

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Proceedings Article | 22 July 2010 Paper

Paper

GRAVITY: design and performance of the fringe tracker

E. Choquet, F. Cassaing, G. Perrin, F. Eisenhauer, W. Brandner, C. Straubmeier, K. Perraut, S. Gillessen

Proceedings Volume 7734, 77341Z (2010) https://doi.org/10.1117/12.855984

KEYWORDS: Algorithm development, Infrared radiation, Interferometry, Current controlled current source, Tin, Telescopes, K band, Stars, Computer simulations, Detection and tracking algorithms

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Proceedings Article | 22 July 2010 Paper

Paper

Potential of balloon payloads for in flight validation of direct and nulling interferometry concepts

Olivier Demangeon, Marc Ollivier, Jean-Michel Le Duigou, Frédéric Cassaing, Vincent Coudé du Foresto, Denis Mourard, Pierre Kern, Tien Lam Trong, Jean Evrard, Olivier Absil, Denis Defrere, Bruno Lopez

Proceedings Volume 7734, 77340I (2010) https://doi.org/10.1117/12.856717

KEYWORDS: Interferometry, Nulling interferometry, Stars, Infrared radiation, Space operations, Thermography, Planets, Space telescopes, Environmental sensing, Sensors

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Proceedings Article | 22 July 2010 Open Access

Open Access

Paper

GRAVITY: a four telescope beam combiner instrument for the VLTI

S. Gillessen, F. Eisenhauer, G. Perrin, W. Brandner, C. Straubmeier, K. Perraut, A. Amorim, M. Schöller, C. Araujo-Hauck, H. Bartko, H. Baumeister, J.-P. Berger, P. Carvas, F. Cassaing, F. Chapron, E. Choquet, Y. Clenet, C. Collin, A. Eckart, P. Fedou, S. Fischer, E. Gendron, R. Genzel, P. Gitton, F. Gonte, A. Gräter, P. Haguenauer, M. Haug, X. Haubois, T. Henning, S. Hippler, R. Hofmann, L. Jocou, S. Kellner, P. Kervella, R. Klein, N. Kudryavtseva, S. Lacour, V. Lapeyrere, W. Laun, P. Lena, R. Lenzen, J. Lima, D. Moratschke, D. Moch, T. Moulin, V. Naranjo, U. Neumann, A. Nolot, T. Paumard, O. Pfuhl, S. Rabien, J. Ramos, J. Rees, R.-R. Rohloff, D. Rouan, G. Rousset, A. Sevin, M. Thiel, K. Wagner, M. Wiest, S. Yazici, D. Ziegler

Proceedings Volume 7734, 77340Y (2010) https://doi.org/10.1117/12.856689

KEYWORDS: Stars, Adaptive optics, Telescopes, Sensors, Interferometry, Integrated optics, Spectroscopy, Wavefront sensors, Near infrared, Metrology

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Proceedings Article | 22 July 2010 Paper

Paper

Review of OCA activities on nulling testbench PERSEE

François Hénault, Paul Girard, Aurélie Marcotto, Nicolas Mauclert, Christophe Bailet, Jean-Michel Clausse, Denis Mourard, Yves Rabbia, Alain Roussel, Marc Barillot, Frédéric Cassaing, Jean-Michel Le Duigou

Proceedings Volume 7734, 77342U (2010) https://doi.org/10.1117/12.856019

KEYWORDS: Mirrors, Interferometers, Stars, Optical alignment, Single mode fibers, Off axis mirrors, Optics manufacturing, Zerodur, Gold, Space operations

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Proceedings Article | 22 July 2010 Paper

Paper

PERSEE: experimental results on the cophased nulling bench

J. Lozi, F. Cassaing, J. M. Le Duigou, K. Houairi, B. Sorrente, J. Montri, S. Jacquinod, J.-M. Rees, L. Pham, E. Lhome, T. Buey, F. Hénault, A. Marcotto, P. Girard, N. Mauclert, M. Barillot, V. Coudé du Foresto, M. Ollivier

Proceedings Volume 7734, 77342M (2010) https://doi.org/10.1117/12.856867

KEYWORDS: Filtering (signal processing), Calibration, Phase shifts, Mirrors, Nulling interferometry, Satellites, Space operations, Colorimetry, Sensors, Beam splitters

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Proceedings Article | 28 July 2008 Paper

Paper

PERSEE, the dynamic nulling demonstrator: recent progress on the cophasing system

K. Houairi, F. Cassaing, J. M. Le Duigou, B. Sorrente, S. Jacquinod, J. P. Amans

Proceedings Volume 7013, 70131W (2008) https://doi.org/10.1117/12.789113

KEYWORDS: Sensors, Visibility, Phase measurement, Nulling interferometry, Interferometers, Signal to noise ratio, Space operations, Interferometry, Sodium, Niobium

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Proceedings Article | 28 July 2008 Paper

Paper

Persee: a nulling demonstrator with real-time correction of external disturbances

F. Cassaing, J. M. Le Duigou, J. P. Amans, M. Barillot, T. Buey, F. Henault, K. Houairi, S. Jacquinod, P. Laporte, A. Marcotto, L. Pirson, J. M. Reess, B. Sorrente, G. Rousset, V. Coudé du Foresto, M. Ollivier

Proceedings Volume 7013, 70131Z (2008) https://doi.org/10.1117/12.789316

KEYWORDS: Mirrors, Nulling interferometry, Sensors, Cameras, Stars, Space operations, Single mode fibers, Fourier transforms, Signal to noise ratio, Interferometers

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Proceedings Article | 28 July 2008 Paper

Paper

Fringe tracking optimization with 4 beams: application to GRAVITY

K. Houairi, F. Cassaing, G. Perrin, F. Eisenhauer, W. Brandner, C. Straubmeier, S. Gillessen

Proceedings Volume 7013, 70131B (2008) https://doi.org/10.1117/12.790967

KEYWORDS: Sensors, Phase measurement, Stars, Interferometers, Atmospheric propagation, Atmospheric modeling, Detection and tracking algorithms, Adaptive optics, Demodulation, Visibility

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Proceedings Article | 28 July 2008 Open Access

Open Access

Paper

GRAVITY: getting to the event horizon of Sgr A*

F. Eisenhauer, G. Perrin, W. Brandner, C. Straubmeier, A. Richichi, S. Gillessen, J. P. Berger, S. Hippler, A. Eckart, M. Schöller, S. Rabien, F. Cassaing, R. Lenzen, M. Thiel, Y. Clénet, J. R. Ramos, S. Kellner, P. Fédou, H. Baumeister, R. Hofmann, E. Gendron, A. Boehm, H. Bartko, X. Haubois, R. Klein, K. Dodds-Eden, K. Houairi, F. Hormuth, A. Gräter, L. Jocou, V. Naranjo, R. Genzel, P. Kervella, T. Henning, N. Hamaus, S. Lacour, U. Neumann, M. Haug, F. Malbet, W. Laun, J. Kolmeder, T. Paumard, R.-R. Rohloff, O. Pfuhl, K. Perraut, J. Ziegleder, D. Rouan, G. Rousset

Proceedings Volume 7013, 70132A (2008) https://doi.org/10.1117/12.788407

KEYWORDS: Stars, Telescopes, Near infrared, Adaptive optics, Metrology, Sensors, Interferometry, Integrated optics, Wavefront sensors, Spectroscopy

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Proceedings Article | 28 July 2008 Paper

Paper

PERSEE: description of a new concept for nulling interferometry recombination and OPD measurement

Sophie Jacquinod, Frédéric Cassaing, Jean-Michel Le Duigou, Marc Barillot, Marc Ollivier, Kamel Houairi, Frederic Lemarquis, Jean-Philippe Amans

Proceedings Volume 7013, 70131T (2008) https://doi.org/10.1117/12.788977

KEYWORDS: Nulling interferometry, Beam splitters, Optical design, Mirrors, Mechanical engineering, Stray light, Interferometers, Mach-Zehnder interferometers, Sensors, Infrared radiation

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Proceedings Article | 22 July 2008 Paper

Paper

Phasing segmented telescopes with long-exposure phase diversity images

Serge Meimon, Enguerran Delavaquerie, Frédéric Cassaing, Thierry Fusco, Laurent Mugnier, Vincent Michau

Proceedings Volume 7012, 701214 (2008) https://doi.org/10.1117/12.787835

KEYWORDS: Sensors, Turbulence, Image segmentation, Telescopes, Adaptive optics, Error analysis, Optical transfer functions, Mirrors, Phase measurement, Wavefront sensors

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Proceedings Article | 28 June 2006 Paper

Paper

DARWIN fringe sensor: experimental results on the BRISE bench

Isabelle Mocœur, Frédéric Cassaing, Fabien Baron, Laurent Mugnier, Stephan Hofer, Hans Thiele

Proceedings Volume 6268, 62682B (2006) https://doi.org/10.1117/12.671705

KEYWORDS: Phase retrieval, Sensors, Telescopes, Image retrieval, Interferometers, Monochromatic aberrations, Point spread functions, Algorithm development, Visibility, Phase measurement

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Proceedings Article | 28 June 2006 Paper

Paper

BRISE: a multipurpose bench for cophasing sensors

Frédéric Cassaing, Béatrice Sorrente, Laurent Mugnier, Gérard Rousset, Vincent Michau, Isabelle Mocoeur, Fabien Baron

Proceedings Volume 6268, 62683A (2006) https://doi.org/10.1117/12.671930

KEYWORDS: Sensors, Mirrors, Phase retrieval, Telescopes, Space telescopes, Nulling interferometry, Deformable mirrors, Cameras, Image retrieval, Interferometry

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Proceedings Article | 13 June 2006 Paper

Paper

Pegase: a space-based nulling interferometer

J. Le Duigou, M. Ollivier, A. Léger, F. Cassaing, B. Sorrente, B. Fleury, G. Rousset, O. Absil, D. Mourard, Y. Rabbia, L. Escarrat, F. Malbet, D. Rouan, R. Clédassou, M. Delpech, P. Duchon, B. Meyssignac, P.-Y. Guidotti, N. Gorius

Proceedings Volume 6265, 62651M (2006) https://doi.org/10.1117/12.671091

KEYWORDS: Sensors, Stars, Signal to noise ratio, Jupiter, Satellites, Interferometers, Planets, Metrology, Space operations, Atmospheric modeling

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Proceedings Article | 18 February 2004 Paper

Paper

Optical design of a Michelson wide-field multiple-aperture telescope

Frederic Cassaing, Beatrice Sorrente, Bruno Fleury, David Laubier

Proceedings Volume 5249, (2004) https://doi.org/10.1117/12.515215

KEYWORDS: Telescopes, Space telescopes, Wavefronts, Distortion, Mirrors, Optical design, Monochromatic aberrations, Optical instrument design, Astronomy, Modulation transfer functions

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Proceedings Article | 26 February 2003 Paper

Paper

Cophasing a wide-field multi-aperture array by phase diversity: influence of aperture redundancy and dilution

Fabien Baron, Frederic Cassaing, Amandine Blanc, David Laubier

Proceedings Volume 4852, (2003) https://doi.org/10.1117/12.460854

KEYWORDS: Optical transfer functions, Error analysis, Signal to noise ratio, Space telescopes, Telescopes, Fourier transforms, Image analysis, Wavefront sensors, Neodymium, Sensors

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Proceedings Article | 21 February 2003 Paper

Paper

System analysis of the AMBER instrument on VLTI

Fabien Malbet, Romain Petrov, Isabelle Tallon-Bosc, Karl-Heinz Hofmann, Denis Mourard, Thierry Forveille, Frederic Cassaing, Francois Reynaud, Michel Tallon, Pierre Mege, Karine Rousselet-Perraut

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458832

KEYWORDS: Calibration, Signal to noise ratio, Interferometry, Atmospheric optics, K band, Spectral resolution, Wavefronts, Refraction, Modulation, Optical fibers

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Proceedings Article | 5 July 2000 Paper

Paper

Optimized fringe tracker for the VLTI/PRIMA instrument

Frederic Cassaing, Bruno Fleury, Christophe Coudrain, Pierre-Yves Madec, Emmanuel di Folco, Andreas Glindemann, Samuel Leveque

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390203

KEYWORDS: Modulation, Sensors, Phase shift keying, Visibility, Detection and tracking algorithms, Interferometers, Demodulation, Polarization, Calibration, Colorimetry

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Proceedings Article | 5 July 2000 Paper

Paper

AMBER: the near-infrared focal instrument for the Very Large Telescope Interferometer

Romain Petrov, Fabien Malbet, Andrea Richichi, Karl-Heinz Hofmann, Denis Mourard, Karim Agabi, Pierre Antonelli, Eric Aristidi, Carlo Baffa, Udo Beckmann, Philippe Berio, Yves Bresson, Frederic Cassaing, Alain Chelli, Albrecht Dreiss, Michel Dugue, Gilles Duvert, Thierry Forveille, E. Fossat, Sandro Gennari, M. Geng, Andre Glentzlin, Daniel Kamm, Stephane Lagarde, Etienne LeCoarer, Danielle LeContel, John Michel LeContel, Franco Lisi, Bruno Lopez, Gilbert Mars, Gregoire Martinot-Lagarde, Djamel Mekarnia, Jean-Louis Monin, David Mouillet, Christian Perrier-Bellet, Pascal Puget, Yves Rabbia, Sylvestre Rebattu, Francois Reynaud, Sylvie Robbe-Dubois, Karine Perraut-Rousselet, Michel Sacchettini, Markus Schoeller, Isabelle Tallon-Bosc, Gerd Weigelt

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390256

KEYWORDS: Telescopes, Visibility, Interferometry, Spectrographs, Adaptive optics, Sensors, Stars, Spatial filters, Interferometers, Optical fibers

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Proceedings Article | 9 June 1994 Paper

Paper

Active phase stabilization at the I2T: implementation of the ASSI table

Sylvie Robbe-Dubois, Beatrice Sorrente, Frederic Cassaing, Yves Rabbia, Gerard Rousset, Luc Dame, Pierre Cruzalebes, Gerard Schumacher

Proceedings Volume 2200, (1994) https://doi.org/10.1117/12.177243

KEYWORDS: Telescopes, Mirrors, Visibility, Modulation, Fringe analysis, Stars, Interferometers, Sensors, Signal to noise ratio, Optical benches

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Showing 5 of 51 publications

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