Dr. Frédéric Cassaing Profile

Dr. Frédéric Cassaing

Senior Research Scientist at ONERA

SPIE Involvement:

Author

Publications (50)

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 29 August 2022 Presentation

Presentation

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

Sébastien Vievard, Julien Lozi, Aurélie Bonnefois, Frédéric Cassaing, Laurent Mugnier, Jean-François Sauvage, Olivier Guyon, 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

Read Abstract +

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

Read Abstract +

Proceedings Article | 26 August 2022 Presentation + Paper

Presentation + Paper

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

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

Read Abstract +

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

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

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

First error budget of a deployable CubeSat telescope

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

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

Read Abstract +

Proceedings Article | 13 December 2020 Presentation + Paper

Presentation + Paper

Progress of the CHARA/SPICA project

C. Pannetier, D. Mourard, F. Cassaing, F. Allouche, J. Monnier, N. Anugu, C. Bailet, P. Berio, T. ten Brummelaar, J. Dejonghe, D. Gies, L. Jocou, S. Kraus, S. Lacour, S. Lagarde, J. B. Le Bouquin, D. Lecron, 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

Read Abstract +

Proceedings Article | 13 December 2020 Poster + Paper

Poster + Paper

Focal plane wavefront sensing on SUBARU/SCExAO

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

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

Read Abstract +

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

Read Abstract +

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

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

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 9 July 2018 Presentation + Paper

Presentation + Paper

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

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

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

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

Read Abstract +

Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

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

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

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

Read Abstract +

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, C. Buisset, D. Mourard, Y. Rabbia, M. Delpech, A. Léger, M. Barillot, B. Sorrente, B. Fleury, N. Gorius, F. Brachet, M. Ollivier, F. Hénault, P.-Y. Guidotti, 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

Read Abstract +

Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

Technological aspects and results from the DARWIN fringe sensor predevelopment

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

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

Read Abstract +

Proceedings Article | 21 November 2017 Open Access

Open Access

Paper

PERSEE: a nulling interferometer with dynamic correction of external perturbations

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

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

Read Abstract +

Proceedings Article | 20 November 2017 Open Access

Open Access

Paper

First results of the PERSEE experiment

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

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

Read Abstract +

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

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

Read Abstract +

Proceedings Article | 8 August 2016 Paper

Paper

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

F. Cassaing, A. Bonnefois, S. Vievard, 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

Read Abstract +

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. P. Amans, J. Lisowski

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

Read Abstract +

Proceedings Article | 12 September 2012 Paper

Paper

Final results of the PERSEE experiment

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

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

Read Abstract +

Proceedings Article | 15 September 2011 Paper

Paper

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

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

Read Abstract +

Proceedings Article | 15 September 2011 Paper

Paper

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

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

Read Abstract +

Proceedings Article | 28 July 2010 Paper

Paper

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

Thierry Fusco, Frederic Cassaing, Serge Meimon

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

Read Abstract +

Proceedings Article | 22 July 2010 Paper

Paper

GRAVITY: design and performance of the fringe tracker

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

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

Read Abstract +

Proceedings Article | 22 July 2010 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 22 July 2010 Open Access

Open Access

Paper

GRAVITY: a four telescope beam combiner instrument for the VLTI

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

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

Read Abstract +

Proceedings Article | 22 July 2010 Paper

Paper

Review of OCA activities on nulling testbench PERSEE

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

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

Read Abstract +

Proceedings Article | 22 July 2010 Paper

Paper

PERSEE: experimental results on the cophased nulling bench

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

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

Read Abstract +

Proceedings Article | 28 July 2008 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 28 July 2008 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 28 July 2008 Paper

Paper

Fringe tracking optimization with 4 beams: application to GRAVITY

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

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

Read Abstract +

Proceedings Article | 28 July 2008 Open Access

Open Access

Paper

GRAVITY: getting to the event horizon of Sgr A*

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

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

Read Abstract +

Proceedings Article | 28 July 2008 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 22 July 2008 Paper

Paper

Phasing segmented telescopes with long-exposure phase diversity images

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

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

Read Abstract +

Proceedings Article | 28 June 2006 Paper

Paper

DARWIN fringe sensor: experimental results on the BRISE bench

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

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

Read Abstract +

Proceedings Article | 28 June 2006 Paper

Paper

BRISE: a multipurpose bench for cophasing sensors

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

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

Read Abstract +

Proceedings Article | 13 June 2006 Paper

Paper

Pegase: a space-based nulling interferometer

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

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

Read Abstract +

Proceedings Article | 18 February 2004 Paper

Paper

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

Beatrice Sorrente, Bruno Fleury, Frederic Cassaing, 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

Read Abstract +

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

Read Abstract +

Proceedings Article | 21 February 2003 Paper

Paper

System analysis of the AMBER instrument on VLTI

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

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

Read Abstract +

Proceedings Article | 5 July 2000 Paper

Paper

Optimized fringe tracker for the VLTI/PRIMA instrument

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

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

Read Abstract +

Proceedings Article | 5 July 2000 Paper

Paper

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

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

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

Read Abstract +

Proceedings Article | 9 June 1994 Paper

Paper

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

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

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

Read Abstract +

Showing 5 of 50 publications

SIGN IN TO:

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Advertisement

Advertisement