Dr. Jean-Philippe G. Berger Profile

Dr. Jean-Philippe G. Berger

Astronomer at IPAG

SPIE Involvement:

Author

Publications (116)

Proceedings Article | 11 March 2024 Presentation + Paper

Multi-delay real-time photonic correlator for broadband RF signal processing

G. Bourdarot, J.-P. Berger, H. Guillet de Chatellus

Proceedings Volume 12885, 128850I (2024) https://doi.org/10.1117/12.3002288

KEYWORDS: Signal processing, Signal detection, Autocorrelation, Transmitters

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SPIE Journal Paper | 15 February 2024

Asgard/NOTT: L-band nulling interferometry at the VLTI. II. Warm optical design and injection system

Germain Garreau, Azzurra Bigioli, Romain Laugier, Gert Raskin, Johan Morren, Jean-Philippe Berger, Colin Dandumont, Harry-Dean Kenchington Goldsmith, Simon Gross, Michael Ireland, Lucas Labadie, Jérôme Loicq, Stephen Madden, Guillermo Martin, Marc-Antoine Martinod, Alexandra Mazzoli, Ahmed Sanny, Hancheng Shao, Kunlun Yan, Denis Defrère

JATIS, Vol. 10, Issue 01, 015002, (February 2024) https://doi.org/10.1117/12.10.1117/1.JATIS.10.1.015002

KEYWORDS: Nulling interferometry, Wavefront errors, Optical design, Equipment, Polarization, Optical path differences, L band, Design, Birefringence, Error analysis

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Proceedings Article | 26 August 2022 Presentation + Paper

Characterization of mid-infrared intersubband detectors for astronomical heterodyne interferometry

Tituan Allain, Mohammadreza Saemian, Carlo Sirtori, Jean-Philippe Berger

Proceedings Volume 12183, 1218315 (2022) https://doi.org/10.1117/12.2629173

KEYWORDS: Sensors, Quantum well infrared photodetectors, Heterodyning, Signal detection, Quantum wells, Electrons, Astronomy, Interferometry, Mid-IR, Heterodyne photomixing, Astronomical detectors

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Proceedings Article | 26 August 2022 Presentation + Paper

L-band nulling interferometry at the VLTI with Asgard/Hi-5: status and plans

Denis Defrère, Azzurra Bigioli, Colin Dandumont, Germain Garreau, Romain Laugier, Marc-Antoine Martinod, Olivier Absil, Jean-Philippe Berger, Emilie Bouzerand, Benjamin Courtney-Barrer, Alexandre Emsenhuber, Steve Ertel, Jonathan Gagne, Adrian Glauser, Simon Gross, Michael Ireland, Harry-Dean Kenchington, Jacques Kluska, Stefan Kraus, Lucas Labadie, Viktor Laborde, Alain Léger, Jarron Leisenring, Jérôme Loicq, Guillermo Martin, Johan Morren, Alexis Matter, Alexandra Mazzoli, Kwinten Missiaen, Salman Muhammad, Marc Ollivier, Gert Raskin, Hélène Rousseau, Ahmed Sanny, Simon Verlinden, Bart Vandenbussche, Julien Woillez

Proceedings Volume 12183, 121830H (2022) https://doi.org/10.1117/12.2627953

KEYWORDS: Stars, Planets, Exoplanets, Nulling interferometry, L band, Telescopes, Interferometers, Astronomy, Spectral resolution, Interferometry

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Proceedings Article | 26 August 2022 Presentation + Paper

A complete photonics correlation scheme for future mid-infrared heterodyne interferometry instrumentation

Guillaume Bourdarot, Jean-Philippe Berger, Tituan Allain, Hugues Guillet de Chatellus

Proceedings Volume 12183, 1218313 (2022) https://doi.org/10.1117/12.2630394

KEYWORDS: Heterodyning, Photonics, Mid-IR, Interferometry, Sensors, Telescopes, Quantum cascade lasers, Oscillators, Modulators, Signal to noise ratio

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Proceedings Article | 26 August 2022 Poster + Paper

Design of the VLTI/Hi-5 light injection system

G. Garreau, A. Bigioli, G. Raskin, J.-P. Berger, C. Dandumont, H.-D. Kenchington Goldsmith, S. Gross, M. Ireland, L. Labadie, R. Laugier, J. Loicq, S. Madden, G. Martin, A. Mazzoli, J. Morren, H. Shao, K. Yan, D. Defrère

Proceedings Volume 12183, 1218320 (2022) https://doi.org/10.1117/12.2629180

KEYWORDS: Mirrors, Zemax, Wavefronts, Tolerancing, Photonics, Nulling interferometry, Error analysis, Telescopes, Optical design

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Proceedings Article | 26 August 2022 Presentation + Paper

A thesis to probe unique exoplanet regimes with micro-arcsecond astrometry and precision closure phases at CHARA and VLTI

Tyler Gardner, John Monnier, Francis Fekel, Jean-Baptiste Le Bouquin, Adam Scovera, Gail Schaefer, Stefan Kraus, Fred Adams, Narsireddy Anugu, Hayley Beltz, Jean-Philippe Berger, Theo ten Brummelaar, Claire Davies, Jacob Ennis, Douglas Gies, Keith J. C. Johnson, Pierre Kervella, Kaitlin Kratter, Aaron Labdon, Cyprien Lanthermann, Isaac Malsky, Emily Rauscher, Johannes Sahlmann, Benjamin Setterholm

Proceedings Volume 12183, 121830Z (2022) https://doi.org/10.1117/12.2630035

KEYWORDS: Planets, Stars, Calibration, Exoplanets, Data modeling, Interferometry, Binary data

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Proceedings Article | 13 June 2022 Presentation

Broadband analog photonic lag correlator for RF signal processing

Hugues Guillet de Chatellus, Guillaume Bourdarot, Jean-Philippe Berger

Proceedings Volume PC12108, (2022) https://doi.org/10.1117/12.2622196

KEYWORDS: Signal processing, Optical correlators, Analog electronics, Picosecond phenomena, Digital signal processing, Transmitters, Standards development, Signal detection, Signal analyzers, Physics

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Proceedings Article | 29 December 2020 Presentation + Paper

V8: an 8 beam mid-infrared heterodyne instrument concept for the VLTI

Jean-Philippe Berger, Guillaume Bourdarot, Hugues Guillet de Chatellus

Proceedings Volume 11446, 1144613 (2020) https://doi.org/10.1117/12.2562385

KEYWORDS: Heterodyning, Mid-IR, Interferometry, Infrared telescopes, Infrared imaging, Infrared radiation, Telescopes, Fiber lasers, Planets, Imaging systems

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Proceedings Article | 21 December 2020 Presentation + Paper

MACH II: Mach-Zehnder analog correlator for heterodyne infrared interferometry

Guillaume Bourdarot, Jean-Philippe Berger, Hugues Guillet de Chatellus, Jean-Baptiste Le Bouquin

Proceedings Volume 11446, 1144610 (2020) https://doi.org/10.1117/12.2562059

KEYWORDS: Optical correlators, Heterodyning, Infrared radiation, Analog electronics, Interferometry, Telescopes, Mid-IR, Infrared telescopes, Infrared detectors, Interferometers

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Proceedings Article | 16 December 2020 Presentation + Paper

The ExoGRAVITY project: using single mode interferometry to characterize exoplanets

S. Lacour, J. Wang, M. Nowak, L. Pueyo, F. Eisenhauer, A.-M. Lagrange, P. Mollière, R. Abuter, A. Amorin, R. Asensio-Torres, M. Bauböck, M. Benisty, J. P. Berger, H. Beust, S. Blunt, A. Boccaletti, A. Bohn, M. Bonnefoy, H. Bonnet, W. Brandner, F. Cantalloube, P. Caselli, B. Charnay, G. Chauvin, E. Choquet, V. Christiaens, Y. Clénet, A. Cridland, P. T. de Zeeuw, R. Dembet, J. Dexter, A. Drescher, G. Duvert, F. Gao, P. Garcia, R. Garcia Lopez, T. Gardner, E. Gendron, R. Genzel, S. Gillessen, J. H. Girard, X. Haubois, G. Heißel, T. Henning, S. Hinkley, S. Hippler, M. Horrobin, M. Houllé, Z. Hubert, A. Jiménez-Rosales, L. Jocou, J. Kammerer, M. Keppler, P. Kervella, L. Kreidberg, V. Lapeyrère, J.-B. Le Bouquin, P. Léna, D. Lutz, A.-L. Maire, A. Mérand, J. D. Monnier, D. Mouillet, A. Muller, E. Nasedkin, T. Ott, G. P. P. L. Otten, C. Paladini, T. Paumard, K. Perraut, G. Perrin, O. Pfuhl, J. Rameau, L. Rodet, G. Rodriguez-Coira, G. Rousset, J. Shangguan, T. Shimizu, J. Stadler, O. Straub, C. Straubmeier, E. Sturm, T. Stolker, E. van Dishoeck, A. Vigan, F. Vincent, S. D. von Fellenberg, K. Ward-Duong, F. Widmann, E. Wieprecht, E. Wiezorrek, J. Woillez

Proceedings Volume 11446, 114460O (2020) https://doi.org/10.1117/12.2561667

KEYWORDS: Interferometry, Exoplanets

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Proceedings Article | 13 December 2020 Paper

Review and scientific prospects of high-contrast optical stellar interferometry

D. Defrère, O. Absil, J.-P. Berger, W. C. Danchi, C. Dandumont, F. Eisenhauer, S. Ertel, T. Gardner, A. Glauser, P. Hinz, M. Ireland, J. Kammerer, S. Kraus, L. Labadie, S. Lacour, R. Laugier, J. Loicq, G. Martin, F. Martinache, M. A. Martinod, B. Mennesson, J. Monnier, B. Norris, M. Nowak, J. U. Pott, S. Quanz, E. Serabyn, J. Stone, P. Tuthill, J. Woillez

Proceedings Volume 11446, 114461J (2020) https://doi.org/10.1117/12.2561505

KEYWORDS: Stellar interferometry, Interferometry, Nulling interferometry, Data acquisition, Stars, Adaptive optics, Integrated optics, Calibration, Large telescopes

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Proceedings Article | 13 December 2020 Presentation + Paper

VLTI status update: tapping into a powerful second-generation instrumentation

Xavier Haubois, Roberto Abuter, Emmanuel Aller-Carpentier, Jaime Alonso, Juan Beltran, Jean-Philippe Berger, Pierre Bourget, Paul Bristow, Luis Caniguante, Bruno Chazelas, Claudia Cid, Ralf Conzelmann, Angela Cortes, Pascaline Darré, Alain Delboulbé, Françoise Delplancke-Ströbele, Diego Del Valle, Roderick Dembet, Reinaldo Donoso, Christophe Dupuy, Sebastien Egner, Frank Eisenhauer, Lorena Faundez, Eloy Fuenteseca, Robert Frahm, Daniel Gaytan, Juan Pablo Gil, Andreas Glindemann, Frédéric Gonté, Jaime Gonzales, Patricia Guajardo, Thibaut Guerlet, Sylvain Guieu, Pablo Gutierrez, Pierre Haguenauer, Pierre van der Heyden, Stefan Huber, Norbert Hubin, Christian Hummel, Lieselotte Jochum, Laurent Jocou, Jean-Paul Kirchbauer, Johann Kolb, Johan Kosmalski, Peter Krempl, Sylvestre Lacour, Jean-Baptiste Le Bouquin, Julien Leclercq, Jean Louis Lizon, Bruno Lopez, Yves Magnard, Anthony Meilland, Alexander Meister, Antoine Mérand, Steffen Mieske, Thibaut Moulin, Juan Osorio, Jürgen Ott, Claudia Paladini, Laurent Pallanca, Marcus Pavez, Luca Pasquini, Célia Pelluet, Isabelle Percheron, Lorenzo Pettazzi, Andrés Pino, Sébastien Poupar, Andrés Ramírez, Javier Reyes, Miguel Riquelme, Thomas Rivinius, Sylvain Rochat, Fernando Salgado, Markus Schöller, Nicolas Schuhler, Pavel Shchekaturov, Christian Stephan, Marcos Suarez, Alain Smette, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Christophe Verinaud, Markus Wittkowski, Julien Woillez, Gérard Zins

Proceedings Volume 11446, 1144606 (2020) https://doi.org/10.1117/12.2561486

KEYWORDS: Telescopes, Adaptive optics, Space operations

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Proceedings Article | 13 December 2020 Presentation + Paper

VLTI images of circumbinary disks around evolved stars

Jacques Kluska, Rik Claes, Akke Corporaal, Hans Van Winckel, Javier Alcolea, Narsireddy Anugu, Jean-Philippe Berger, Dylan Bollen, Valentin Bujarrabal, Robert Izzard, Devika Kamath, Stefan Kraus, Jean-Baptiste Le Bouquin, Michiel Min, John Monnier, Hans Olofsson

Proceedings Volume 11446, 114460D (2020) https://doi.org/10.1117/12.2561480

KEYWORDS: Stars, Image processing, Interferometry, Image restoration, Infrared imaging, Infrared radiation, Imaging systems, Spatial resolution, Thermal modeling, Binary data

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Proceedings Article | 21 August 2020 Paper

Betelgeuse scope: single-mode-fibers-assisted optical interferometer design for dedicated stellar activity monitoring

Narsireddy Anugu, Katie Morzinski, Josh Eisner, Ewan Douglas, Dan Marrone, Steve Ertel, Sebastiaan Haffert, Oscar Montoya, Jordan Stone, Stefan Kraus, John Monnier, Jean-Baptiste Lebouquin, Jean-Philippe Berger, Julien Woillez, Miguel Montargès

Proceedings Volume 11490, 114900X (2020) https://doi.org/10.1117/12.2568900

KEYWORDS: Telescopes, Convection, Stars, Interferometers, Visibility, Interferometry, Optical telescopes, Single mode fibers, Spatial resolution

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Proceedings Article | 17 July 2018 Paper

Characterization of ALPAO deformable mirrors for the NAOMI VLTI Auxiliary Telescopes adaptive optics

Jean-Baptiste Le Bouquin, Jean-Philippe Berger, Jean-Luc Beuzit, Eric Cottalorda, Alain Delboulbe, Sebastien Egner, Frederic Yves Gonte, Sylvain Guieu, Pierre Haguenauer, Laurent Jocou, Yves Magnard, Thibaut Moulin, Sylvain Rochat, Christophe Vérinaud, Julien Woillez

Proceedings Volume 10703, 1070371 (2018) https://doi.org/10.1117/12.2313442

KEYWORDS: Actuators, Telescopes, Calibration, Deformable mirrors, Adaptive optics, Wavefronts, Astronomy, Turbulence, Interferometers

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Proceedings Article | 9 July 2018 Presentation + Paper

A three-telescope active integrated optics spectro-interferometric combiner in the L-band for application to high precision interferometry

G. Martin, I. Heras, S. Heidmann, G. Ulliac, N. Courjal, A. Morand, P. Benech, E. le Coarer, J.-P. Berger

Proceedings Volume 10701, 1070119 (2018) https://doi.org/10.1117/12.2312135

KEYWORDS: Modulation, Waveguides, Scattering, L band, Integrated optics, Interferometry, Mid-IR, Spectroscopy, Mirrors, Directional couplers

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Proceedings Article | 9 July 2018 Paper

Planet formation imager: project update

John Monnier, Michael Ireland, Stefan Kraus, Almudena Alonso-Herrero, Amy Bonsor, Fabien Baron, Amelia Bayo, Jean-Philippe Berger, Tabetha Boyajian, Andrea Chiavassa, David Ciardi, Michelle Creech-Eakman, Willem-Jan de Wit, Denis Defrère, Ruobing Dong, Gaspard Duchêne, Catherine Espaillat, Alexandre Gallenne, Poshak Gandhi, Jean-Francois Gonzalez, Chris Haniff, Sebastian Hoenig, John Ilee, Andrea Isella, Eric Jensen, Attila Juhasz, Stephen Kane, Makoto Kishimoto, Wilhelm Kley, Quentin Kral, Kaitlin Kratter, Lucas Labadie, Sylvestre Lacour, Greg Laughlin, Jean-Baptiste Le Bouquin, Ernest Michael, Farzana Meru, Rafael Millan-Gabet, Florentin Millour, Stefano Minardi, Alessandro Morbidelli, Chris Mordasini, Andreas Morlok, Dave Mozurkewich, Richard Nelson, Johan Olofsson, Rene Oudmaijer, Chris Packham, Claudia Paladini, Olja Panic, Romain Petrov, Benjamin Pope, Joerg-Uwe Pott, Luis Henry Quiroga-Nunez, Cristina Ramos Almeida, Sean Raymond, Zsolt Regaly, Mark Reynolds, Stephen Ridgway, Stephen Rinehart, Matthias Schreiber, Michael Smith, Keivan Stassun, Jean Surdej, Theo ten Brummelaar, Konrad Tristram, Neal Turner, Peter Tuthill, Gerard van Belle, Gautum Vasisht, Alexander Wallace, Gerd Weigelt, Edward Wishnow, Markus Wittkowski, Sebastian Wolf, John Young, Ming Zhao, Zhaohuan Zhu, Sebastian Zúñiga-Fernández

Proceedings Volume 10701, 1070118 (2018) https://doi.org/10.1117/12.2312683

KEYWORDS: Planets, Telescopes, Space telescopes, Exoplanets, Stars, Mid-IR, Interferometry, Signal to noise ratio, Interferometers, Heterodyning

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Proceedings Article | 9 July 2018 Paper

VLTI status update: three years into the second generation

Julien Woillez, Pascaline Darré, Sebastien Egner, Frédéric Gonté, Xavier Haubois, Antoine Mérand, Nicolas Schuhler, José Antonio Abad, Roberto Abuter, Emmanuel Aller-Carpentier, Jaime Alonso, Luigi Andolfato, Pablo José Barriga, Juan Beltran, Jean-Philippe Berger, Pierre Bourget, Roland Brast, Paul Bristow, Luis Caniguante, Ralf Conzelmann, Angela Cortes, Alain Delboulbé, Françoise Delplancke-Ströbele, Diego Del Valle, Roderick Dembet, Frédéric Derie, Reinaldo Donoso, Philippe Duhoux, Christophe Dupuy, Andreas Förster, Eloy Fuenteseca, Robert Frahm, Daniel Gaytan, Andreas Glindemann, Jaime Gonzales, Thibaut Guerlet, Sylvain Guieu, Stéphane Guisard, Pablo Gutierrez, Pierre Haguenauer, Andreas Haimerl, Pierre van der Heyden, Stefan Huber, Norbert Hubin, Lieselotte Jochum, Laurent Jocou, Paul Jolley, Jean-Paul Kirchbauer, Johann Kolb, Johan Kosmalski, Peter Krempl, Jean-Baptiste Le Bouquin, Samuel Lévêque, Paul Lilley, Jean Louis Lizon, Yves Magnard, Pedro Mardones, Alexander Meister, Thibaut Moulin, Juan Osorio, Jürgen Ott, Laurent Pallanca, Jérôme Paufique, Marcus Pavez, Luca Pasquini, Isabelle Percheron, Lorenzo Pettazzi, Thanh Phan Duc, Jean Francois Pirard, Andres Pino, Sébastien Poupar, Jutta Quentin, Andres Ramírez, Javier Reyes, Robert Ridings, Sylvain Rochat, Thomas Rivinius, Fernando Salgado, Markus Schöller, Pavel Shchekaturov, Christian Stephan, Marcos Suarez, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Christophe Verinaud, Willem-Jan de Wit, Gérard Zins

Proceedings Volume 10701, 1070103 (2018) https://doi.org/10.1117/12.2312042

KEYWORDS: Telescopes, Adaptive optics, Metrology, Interferometers, Stars

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Proceedings Article | 9 July 2018 Paper

NAOMI: the adaptive optics for the auxiliary telescopes of VLTI

Frédéric Gonté, Sebastien Egner, Pierre Haguenauer, Julien Woillez, Emmanuel Aller-Carpentier, Jaime Alonso, Luigi Andolfato, Pierre Bourget, Pascaline Darré, Roderick Dembet, Christophe Dupuy, Pablo Gutierrez, Stefan Huber, Norbert Hubin, Jean-Paul Kirchbauer, Johann Kolb, Johan Kosmalski, Alexander Meister, Luca Pasquini, Javier Reyes, Pavel Shchekaturov, Nicolas Schuhler, Christian Stephan, Guillermo Valdes, Christophe Vérinaud, Jean-Philippe Berger, Jean-Baptiste Le Bouquin, Sylvain Guieu, Alain Delboulbé, Laurent Jocou, Yves Magnard, Thibaut Moulin, Sylvain Rochat, Eric Stadler, Peter Krempl

Proceedings Volume 10701, 107010N (2018) https://doi.org/10.1117/12.2312220

KEYWORDS: Telescopes, Adaptive optics, Real-time computing, Deformable mirrors, Interferometry, Interferometers, Sensors, Mirrors, Wavefronts

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Proceedings Article | 9 July 2018 Paper

Hi-5: a potential high-contrast thermal near-infrared imager for the VLTI

D. Defrère, M. Ireland, O. Absil, J.-P. Berger, W. Danchi, S. Ertel, A. Gallenne, F. Hénault, P. Hinz, E. Huby, S. Kraus, L. Labadie, J.-B. Le Bouquin, G. Martin, A. Matter, B. Mennesson, A. Mérand, S. Minardi, J. Monnier, B. Norris, G. Orban de Xivry, E. Pedretti, J.-U. Pott, M. Reggiani, E. Serabyn, J. Surdej, K. R. W. Tristram, J. Woillez

Proceedings Volume 10701, 107010U (2018) https://doi.org/10.1117/12.2313700

KEYWORDS: Planets, Interferometry, Stars, Exoplanets, Imaging systems, Interferometers, L band, Mid-IR, Integrated optics, Astrophysics

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Proceedings Article | 9 July 2018 Presentation + Paper

Protoplanetary environments at the astronomical unit scale: the contribution of long baseline interferometry

Jean-Philippe Berger

Proceedings Volume 10701, 107011L (2018) https://doi.org/10.1117/12.2313218

KEYWORDS: Stars, Interferometry, Astronomy, Data modeling, Planets, Interferometers, Mid-IR, Telescopes

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Proceedings Article | 3 April 2018 Open Access

Integrated optics applied to astronomical aperture synthesis III: simulation of components optimized for astronomical interferometry

Laurent Nabias, Isabelle Schanen, Jean-Philippe Berger, Pierre Kern, Fabien Malbet, Pierre Benech

Proceedings Volume 10570, 1057014 (2018) https://doi.org/10.1117/12.2326478

KEYWORDS: Integrated optics, Astronomy, Synthetic apertures, Astronomical interferometry, Astronomical imaging

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Proceedings Article | 3 April 2018 Open Access

Integrated optics applied to astronomical aperture synthesis: general concept for space and ground based applications

Kern Pierre, Fabien Malbet, Jean Philippe Berger, Karine Rousselet-Perraut, Isabelle Schanen, Laurent Nabias, Pierre Benech

Proceedings Volume 10570, 105700S (2018) https://doi.org/10.1117/12.2326466

KEYWORDS: Integrated optics, Interferometry, Sensors, Space telescopes, Telescopes, Integration, Astronomy, Waveguides, Polarization, Wavefronts

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Proceedings Article | 3 April 2018 Open Access

Integrated optics applied to astronomical aperture synthesis

Pierre Kern, Fabien Malbet, Jean-Philippe Berger, Karine Rousselet-Perraut, Isabelle Schanen, Laurent Nabias, Pierre Benech

Proceedings Volume 10570, 1057015 (2018) https://doi.org/10.1117/12.2326479

KEYWORDS: Integrated optics, Astronomy, Synthetic apertures, Astronomical imaging

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Proceedings Article | 4 August 2016 Paper

Planet Formation Imager (PFI): science vision and key requirements

Stefan Kraus, John Monnier, Michael Ireland, Gaspard Duchêne, Catherine Espaillat, Sebastian Hönig, Attila Juhasz, Chris Mordasini, Johan Olofsson, Claudia Paladini, Keivan Stassun, Neal Turner, Gautam Vasisht, Tim Harries, Matthew Bate, Jean-François Gonzalez, Alexis Matter, Zhaohuan Zhu, Olja Panic, Zsolt Regaly, Alessandro Morbidelli, Farzana Meru, Sebastian Wolf, John Ilee, Jean-Philippe Berger, Ming Zhao, Quentin Kral, Andreas Morlok, Amy Bonsor, David Ciardi, Stephen Kane, Kaitlin Kratter, Greg Laughlin, Joshua Pepper, Sean Raymond, Lucas Labadie, Richard Nelson, Gerd Weigelt, Theo ten Brummelaar, Arnaud Pierens, Rene Oudmaijer, Wilhelm Kley, Benjamin Pope, Eric L. Jensen, Amelia Bayo, Michael Smith, Tabetha Boyajian, Luis Henry Quiroga-Nuñez, Rafael Millan-Gabet, Andrea Chiavassa, Alexandre Gallenne, Mark Reynolds, Willem-Jan de Wit, Markus Wittkowski, Florentin Millour, Poshak Gandhi, Cristina Ramos Almeida, Almudena Alonso Herrero, Chris Packham, Makoto Kishimoto, Konrad R. Tristram, Jörg-Uwe Pott, Jean Surdej, David Buscher, Chris Haniff, Sylvestre Lacour, Romain Petrov, Steve Ridgway, Peter Tuthill, Gerard van Belle, Phil Armitage, Clement Baruteau, Myriam Benisty, Bertram Bitsch, Sijme-Jan Paardekooper, Christophe Pinte, Frederic Masset, Giovanni Rosotti

Proceedings Volume 9907, 99071K (2016) https://doi.org/10.1117/12.2231067

KEYWORDS: Planets, Imaging systems, Exoplanets, Planetary systems, Astrophysics, Stars, Astronomy, Theoretical astronomy, Observatories, Physics

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Proceedings Article | 4 August 2016 Paper

Astronomical photonics in the context of infrared interferometry and high-resolution spectroscopy

Lucas Labadie, Jean-Philippe Berger, Nick Cvetojevic, Roger Haynes, Robert Harris, Nemanja Jovanovic, Sylvestre Lacour, Guillermo Martin, Stefano Minardi, Guy Perrin, Martin Roth, Robert Thomson

Proceedings Volume 9907, 990718 (2016) https://doi.org/10.1117/12.2230889

KEYWORDS: Astrophotonics, Interferometry, Photonics, Astronomy, Waveguides, Glasses, Dispersion, Mid-IR, Integrated optics, Wave propagation

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Proceedings Article | 4 August 2016 Paper

Beam combination schemes and technologies for the Planet Formation Imager

Stefano Minardi, Sylvestre Lacour, Jean-Philippe Berger, Lucas Labadie, Robert R. Thomson, Chris Haniff, Michael Ireland

Proceedings Volume 9907, 99071N (2016) https://doi.org/10.1117/12.2232656

KEYWORDS: Information operations, Planets, Mid-IR, Telescopes, Integrated optics, Visibility, Signal to noise ratio, Waveguides, Photonics, Interferometry

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Proceedings Article | 4 August 2016 Paper

The 2nd generation VLTI path to performance

Julien Woillez, Jaime Alonso, Jean-Philippe Berger, Henri Bonnet, Willem-Jan de Wit, Sebastian Egner, Frank Eisenhauer, Frédéric Gonté, Sylvain Guieu, Pierre Haguenauer, Antoine Mérand, Lorenzo Pettazzi, Sébastien Poupar, Markus Schöller, Nicolas Schuhler

Proceedings Volume 9907, 990706 (2016) https://doi.org/10.1117/12.2233971

KEYWORDS: Telescopes, Wavefront sensors, Adaptive optics, Optical tracking, Stars, Infrared radiation, Interferometers, Astatine, Mirrors, Infrared telescopes

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Proceedings Article | 4 August 2016 Paper

VLT interferometer upgrade for the 2nd generation of interferometric instruments

Frederic Gonté, Julien Woillez, Nicolas Schuhler, Sebastian Egner, Antoine Merand, José Antonio Abad, Sergio Abadie, Roberto Abuter, Margarita Acuña, Fatmé Allouche, Jaime Alonso, Luigi Andolfalto, Pierre Antonelli, Gerardo Avila, Pablo José Barriga, Juan Beltran, Jean-Philippe Berger, Carlos Bolados, Henri Bonnet, Pierre Bourget, Roland Brast, Paul Bristow, Luis Caniguante, Roberto Castillo, Ralf Conzelmann, Angela Cortes, Françoise Delplancke, Diego Del Valle, Frederic Derie, Alvaro Diaz, Reinaldo Donoso, Reinhold Dorn, Philippe Duhoux, Christophe Dupuy, Frank Eisenhauer, Christian Elao, Eloy Fuenteseca, Ruben Fernandez, Daniel Gaytan, Andreas Glindemann, Jaime Gonzales, Sylvain Guieu, Stephane Guisard, Pierre Haguenauer, Andreas Haimerl, Volker Heinz, Juan Pablo Henriquez, P. van der Heyden, Norbert Hubin, Rodrigo Huerta, Lieselotte Jochum, Alfredo Leiva, Samuel Lévêque, Jean-Louis Lizon, Fernando Luco, Pedro Mardones, Angel Mellado, Juan Osorio, Jürgen Ott, Laurent Pallanca, Marcus Pavez, Luca Pasquini, Isabelle Percheron, Jean-Francois Pirard, Duc Than Phan, Juan Carlos Pineda, Andres Pino, Sebastien Poupar, Andres Ramírez, Claudio Reinero, Miguel Riquelme, Juan Romero, Thomas Rivinius, Chester Rojas, Felix Rozas, Fernando Salgado, Silvia Scheithauer, Christian Schmid, Markus Schöller, Waldo Siclari, Christian Stephan, Richard Tamblay, Mario Tapia, Konrad Tristram, Guillermo Valdes, Willem-Jan de Wit, Andrew Wright, Gerard Zins

Proceedings Volume 9907, 99071Z (2016) https://doi.org/10.1117/12.2233350

KEYWORDS: Interferometry, Adaptive optics, Telescopes, Interferometers, Stars, Infrared radiation, Interferometry, Astatine, Mirrors, Mid-IR, Sensors

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Proceedings Article | 4 August 2016 Paper

NAOMI: a low-order adaptive optics system for the VLT interferometer

Frédéric Yves Gonté, Jaime Alonso, Emmanuel Aller-Carpentier, Luigi Andolfato, Jean-Philippe Berger, Angela Cortes, Françoise Delplancke-Strobele, Rob Donaldson, Reinhold Dorn, Christophe Dupuy, Sebastian Egner, Stefan Huber, Norbert Hubin, Jean-Paul Kirchbauer, Miska Le Louarn, Paul Lilley, Paul Jolley, Alessandro Martis, Jérôme Paufique, Luca Pasquini, Jutta Quentin, Robert Ridings, Javier Reyes, Pavel Shchkaturov, Marcos Suarez, Thanh Phan Duc, Guillermo Valdes, Julien Woillez, Jean-Baptiste Le Bouquin, Jean-Luc Beuzit, Sylvain Rochat, Christophe Vérinaud, Thibaut Moulin, Alain Delboulbé, Laurence Michaud, Jean-Jacques Correia, Alain Roux, Didier Maurel, Eric Stadler, Yves Magnard

Proceedings Volume 9907, 990720 (2016) https://doi.org/10.1117/12.2233993

KEYWORDS: Interferometry, Adaptive optics, Telescopes, Mirrors, Astatine, Relays, Actuators, Stars, Real-time computing, Deformable mirrors

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Proceedings Article | 4 August 2016 Paper

An overview of the mid-infrared spectro-interferometer MATISSE: science, concept, and current status

A. Matter, B. Lopez, P. Antonelli, M. Lehmitz, F. Bettonvil, U. Beckmann, S. Lagarde, W. Jaffe, R. Petrov, P. Berio, F. Millour, S. Robbe-Dubois, A. Glindemann, P. Bristow, M. Schoeller, T. Lanz, T. Henning, G. Weigelt, M. Heininger, S. Morel, P. Cruzalebes, K. Meisenheimer, R. Hofferbert, S. Wolf, Y. Bresson, T. Agocs, F. Allouche, J.-C. Augereau, G. Avila, C. Bailet, J. Behrend, G. van Belle, J.-P. Berger, R. van Boekel, P. Bourget, R. Brast, J.-M. Clausse, C. Connot, R. Conzelmann, G. Csepany, W. Danchi, M. Delbo, C. Dominik, A. van Duin, E. Elswijk, Y. Fantei, G. Finger, A. Gabasch, F. Gonté, U. Graser, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, C Hummel, J. Isderda, D. Ives, G. Jakob, A. Jasko, P. Jolley, S. Kiraly, J. Kragt, T. Kroener, G. Kroes, S. Kuindersma, L. Labadie, W. Laun, C. Leinert, J.-L. Lizon, C. Lucuix, A. Marcotto, F. Martinache, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Menardi, A. Merand, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, E. Pozna, R. Roelfsema, G. Rupprecht, D. Schertl, C. Schmidt, M. Schuil, A. Spang, J. Stegmeier, N. Tromp, F. Vakili, M. Vannier, K. Wagner, L. Venema, J. Woillez

Proceedings Volume 9907, 99070A (2016) https://doi.org/10.1117/12.2233052

KEYWORDS: Mid-IR, Interferometry, Telescopes, Signal detection, Sensors, Stars, Spectral resolution, Fourier transforms, L band, Cameras

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Proceedings Article | 27 July 2016 Paper

Scientific planning for the VLT and VLTI

B. Leibundgut, J.-P. Berger

Proceedings Volume 9906, 99065D (2016) https://doi.org/10.1117/12.2233390

KEYWORDS: Space telescopes, Telescopes, Spectroscopes, Spatial resolution, Observatories, Interferometry, Imaging spectroscopy, Adaptive optics, Spectrographs, Infrared radiation

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Proceedings Article | 26 July 2016 Paper

How to create space inside the VLTI: PIONIER 3D project

P. Bourget, G. Zins, S. Guieu, N. Schuhler, P. Haguenauer, S. Poupar, J. Berger, F. Gonté, J. Lebouquin, T. Rivinius, A. Mérand, L. Jocou

Proceedings Volume 9907, 99071Q (2016) https://doi.org/10.1117/12.2231666

KEYWORDS: Interferometry, Astrophysics, Interferometers, Sensors, Integrated optics, Optical alignment, Calibration, Mirrors, Optical benches, Observatories

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Proceedings Article | 24 July 2014 Paper

HD 139614: the interferometric case for a group-Ib pre-transitional young disk

Lucas Labadie, Alexis Matter, Alexander Kreplin, Bruno Lopez, Sebastian Wolf, Gerd Weigelt, Steve Ertel, Jean-Philippe Berger, Jorg-Uwe Pott, William Danchi

Proceedings Volume 9146, 91462T (2014) https://doi.org/10.1117/12.2055353

KEYWORDS: Visibility, Stars, Surface conduction electron emitter displays, Mid-IR, Interferometry, Data modeling, Radiative transfer, Silicates, Calibration, Infrared radiation

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Proceedings Article | 24 July 2014 Paper

The 2014 interferometric imaging beauty contest

John Monnier, Jean-Philippe Berger, Jean-Baptiste Le Bouquin, Peter Tuthill, Markus Wittkowski, Rebekka Grellmann, André Müller, Sridhar Renganswany, Christian Hummel, Karl-Heinz Hofmann, Dieter Schertl, Gerd Weigelt, John Young, David Buscher, Joel Sanchez-Bermudez, Antxon Alberdi, Rainer Schoedel, Rainer Köhler, Ferréol Soulez, Éric Thiébaut, Jacques Kluska, Fabien Malbet, Gilles Duvert, Stefan Kraus, Brian Kloppenborg, Fabien Baron, Willem-Jan de Wit, Thomas Rivinius, Antoine Merand

Proceedings Volume 9146, 91461Q (2014) https://doi.org/10.1117/12.2057312

KEYWORDS: Stars, Image restoration, Interferometry, Image processing, Visibility, Reconstruction algorithms, Telescopes, Data modeling, Spatial resolution, Optical interferometry

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Proceedings Article | 24 July 2014 Paper

MATISSE status report and science forecast

B. Lopez, S. Lagarde, W. Jaffe, R. Petrov, M. Schöller, P. Antonelli, U. Beckman, Ph. Bério, F. Bettonvil, U. Graser, F. Millour, S. Robbe-Dubois, L. Venema, S. Wolf, P. Bristow, A. Glindemann, J.-C. Gonzalez, Th. Lanz, T. Henning, G. Weigelt, T. Agócs, J.-C. Augereau, G. Ávila, C. Bailet, J. Behrend, J.-P. Berger, Roy von Boekel, S. Bonhomme, P. Bourget, R. Brast, Y. Bresson, J. Clausse, O. Chesneau, G. Csépány, C. Connot, A. Crida, W. Danchi, M. Delbo , F. Delplancke, C. Dominik, M. Dugué, E. Elswijk, Y. Fanteï, G. Finger, A. Gabasch, P. Girard, V. Girault, P. Gitton, A. Glazenborg, F. Gonté, F. Guitton, S. Guniat, M. De Haan, P. Haguenauer, H. Hanenburg, M. Heininger, K.-H. Hofmann, M. Hogerheijde, R. ter Horst, J. Hron, Y. Hughes, D. Ives, G. Jakob, A. Jaskó, P. Jolley, J. Kragt, R. Köhler, T. Kroener, G. Kroes, L. Labadie, W. Laun, M. Lehmitz, Ch. Leinert, J. Lizon, Ch. Lucuix, A. Marcotto, F. Martinache, A. Matter, G. Martinot-Lagarde, N. Mauclert, L. Mehrgan, A. Meilland, M. Mellein, S. Ménardi, J. Menut, K. Meisenheimer, S. Morel, L. Mosoni, R. Navarro, U. Neumann, E. Nussbaum, S. Ottogalli, R. Palsa, J. Panduro, E. Pantin, I. Percheron, T. Phan Duc, J.-U. Pott, Eszter Pozna, F. Przygodda, A. Richichi, F. Rigal, G. Rupprecht, D. Schertl, J. Stegmeier, L. Thiam, N. Tromp, M. Vannier, F. Vakili, G. van Belle, K. Wagner, J. Woillez

Proceedings Volume 9146, 91460M (2014) https://doi.org/10.1117/12.2056419

KEYWORDS: Interferometry, Sensors, Mid-IR, Stars, Telescopes, Visibility, Planets, Spectral resolution, Photometry, Fourier transforms

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Proceedings Article | 24 July 2014 Paper

The science case for the Planet Formation Imager (PFI)

Stefan Kraus, John Monnier, Tim Harries, Ruobing Dong, Matthew Bate, Barbara Whitney, Zhaohuan Zhu, David Buscher, Jean-Philippe Berger, Chris Haniff, Mike Ireland, Lucas Labadie, Sylvestre Lacour, Romain Petrov, Steve Ridgway, Jean Surdej, Theo ten Brummelaar, Peter Tuthill, Gerard van Belle

Proceedings Volume 9146, 914611 (2014) https://doi.org/10.1117/12.2055544

KEYWORDS: Planets, Stars, Planetary systems, Mid-IR, Interferometry, Exoplanets, Computer simulations, Imaging systems, Radiative transfer, Physics

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Proceedings Article | 24 July 2014 Paper

NAOMI: a new adaptive optics module for interferometry

Emmanuel Aller-Carpentier, Reinhold Dorn, Francoise Delplancke-Stroebele, Jérome Paufique, Luigi Andolfato, Christophe Dupuy, Enrico Fedrigo, Philippe Gitton, Paul Jolley, Paul Lilley, Miska Le Louarn, Than Duc, Andrew Rakich, Javier Reyes, Robert Ridings, Julien Woillez, Enrico Marchetti, Marcos Suarez Valles, Christian Schmid, Norbert Hubin, Jean-Philippe Berger, Jutta Quentin, Bernard-Alexis Delabre, Stewart McLay, Luca Pasquini

Proceedings Volume 9146, 91461C (2014) https://doi.org/10.1117/12.2054730

KEYWORDS: Telescopes, Adaptive optics, Interferometry, Wavefront sensors, Astatine, Stars, Sensors, Mirrors, Cameras, Real-time computing

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Proceedings Article | 24 July 2014 Paper

VLTI status update: a decade of operations and beyond

Antoine Mérand, Roberto Abuter, Emmanuel Aller-Carpentier, Luigi Andolfato, Jaime Alonso, Jean-Philippe Berger, Guillaume Blanchard, Henri Boffin, Pierre Bourget, Paul Bristow, Claudia Cid, Willem-Jan de Wit, Diego del Valle, Françoise Delplancke-Ströbele, Frédéric Derie, Lorena Faundez, Steve Ertel, Rebekka Grellmann, Philippe Gitton, Andreas Glindemann, Patricia Guajardo, Sylvain Guieu, Stéphane Guisard, Serge Guniat, Pierre Haguenauer, Cristian Herrera, Christian Hummel, Carlos La Fuente, Marcelo Lopez, Pedro Mardones, Sébastien Morel, André Müller, Isabelle Percheron, Than Phan Duc, Andres Pino, Sébastien Poupar, Eszter Pozna, Andres Ramirez, Srihdaran Rengaswamy, Lionel Rivas, Thomas Rivinius, Alex Segovia, Christian Schmid, Markus Schöller, Nicolas Schuhler, Julien Woillez, Markus Wittkowski

Proceedings Volume 9146, 91460J (2014) https://doi.org/10.1117/12.2057150

KEYWORDS: Telescopes, Astatine, Interferometry, Observatories, Interferometers, Adaptive optics, Space telescopes, Stars, Large telescopes, Calibration

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Proceedings Article | 24 July 2014 Paper

Planet formation imager (PFI): introduction and technical considerations

John Monnier, Stefan Kraus, David Buscher, J.-P. Berger, Christopher Haniff, Michael Ireland, Lucas Labadie, Sylvestre Lacour, Herve Le Coroller, Romain Petrov, Jörg-Uwe Pott, Stephen Ridgway, Jean Surdej, Theo ten Brummelaar, Peter Tuthill, Gerard van Belle

Proceedings Volume 9146, 914610 (2014) https://doi.org/10.1117/12.2057262

KEYWORDS: Planets, Telescopes, Space telescopes, Stars, Imaging systems, Spatial resolution, Interferometry, Mid-IR, Interferometers, Exoplanets

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Proceedings Article | 24 July 2014 Paper

Improving the astrometric performance of VLTI-PRIMA

J. Woillez, R. Abuter, L. Andolfato, J.-P. Berger, H. Bonnet, F. Delplancke, F. Derie, N. Di Lieto, S. Guniat, A. Mérand, T. Phan Duc, C. Schmid, N. Schuhler, T. Henning, R. Launhardt, F. Pepe, Didier Queloz, A. Quirrenbach, S. Reffert, J. Sahlmann, D. Segransan

Proceedings Volume 9146, 91461H (2014) https://doi.org/10.1117/12.2054723

KEYWORDS: Metrology, Space telescopes, Telescopes, Stars, Sensors, Mirrors, Polarization, Retroreflectors, Signal to noise ratio, Exoplanets

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Proceedings Article | 22 July 2014 Paper

VLTI-UT vibrations effort and performances

Sébastien Poupar, Pierre Haguenauer, Jaime Alonso, Nicolas Schuhler, Juan-Pablo Henriquez, Jean-Philippe Berger, Pierre Bourget, Stephane Brillant, Roberto Castillo, Philippe Gitton, Frederic Gonte, Nicola Di Lieto, Jean-Louis Lizon, Antoine Merand, Julien Woillez

Proceedings Volume 9145, 91452M (2014) https://doi.org/10.1117/12.2055435

KEYWORDS: Telescopes, Mirrors, IRIS Consortium, Electronics, Interferometers, Infrared telescopes, Metrology, Sensors, Large telescopes, Infrared sensors

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Proceedings Article | 12 September 2012 Paper

PIONIER: a status report

J.-B. Le Bouquin, J.-P. Berger, G. Zins, B. Lazareff, L. Jocou, P. Kern, R. Millan-Gabet, W. Traub, P. Haguenauer, O. Absil, J.-C. Augereau, M. Benisty, N. Blind, A. Delboulbe, P. Feautrier, M. Germain, D. Gillier, P. Gitton, M. Kiekebusch, J. Knudstrup, J.-L. Lizon, Y. Magnard, F. Malbet, D. Maurel, F. Menard, M. Micallef, L. Michaud, T. Moulin, D. Popovic, K. Perraut, P. Rabou, S. Rochat, F. Roussel, A. Roux, E. Stadler, E. Tatulli

Proceedings Volume 8445, 84450I (2012) https://doi.org/10.1117/12.925671

KEYWORDS: Stars, Visibility, Calibration, Telescopes, Data modeling, Interferometry, Sensors, Polarization, Photonic integrated circuits, Integrated optics

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Proceedings Article | 12 September 2012 Paper

Bandwidth smearing in optical interferometry: analytic model of the transition to the double fringe packet

R. Lachaume, J.-P. Berger

Proceedings Volume 8445, 84453L (2012) https://doi.org/10.1117/12.927016

KEYWORDS: Visibility, Atmospheric optics, Binary data, Systems modeling, Interferometry, Spectral resolution, Radio optics, Interferometers, Atmospheric modeling, Telescopes

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Proceedings Article | 12 September 2012 Paper

The Very Large Telescope Interferometer v2012+

Pierre Haguenauer, Roberto Abuter, Luigi Andolfato, Jaime Alonso, Guillaume Blanchard, Jean-Philippe Berger, Pierre Bourget, Stephane Brillant, Frédéric Derie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Bruno Gilli, Philippe Gitton, Juan Carlos Gonzalez, Stéphane Guisard, Serge Guniat, Gerhard Hudepohl, Andreas Kaufer, Samuel Lévêque, Serge Ménardi, Antoine Mérand, Sebastien Morel, Isabelle Percheron, Than Phan Duc, Sebastien Poupar, Andres Ramirez, Claudio Reineiro, Sridharan Rengaswamy, Thomas Rivinius, Markus Schöller, Christian Schmid, Alex Segovia, Nicolas Schuhler, Guillermo Valdes, Willem Jan de Wit, Markus Wittkowski

Proceedings Volume 8445, 84450D (2012) https://doi.org/10.1117/12.925323

KEYWORDS: Telescopes, Interferometers, Astatine, Interferometry, Large telescopes, Observatories, Systems engineering, Control systems, Mirrors, Sensors

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Proceedings Article | 12 September 2012 Paper

Birefringence compensation in PIONIER

Bernard Lazareff, Jean-Baptiste Le Bouquin, Jean-Philippe Berger, Laurent Jocou, Pierre Kern, Gérard Zins

Proceedings Volume 8445, 84452W (2012) https://doi.org/10.1117/12.925421

KEYWORDS: Birefringence, Polarization, Mirrors, Interferometry, Interferometers, Optical fibers, Lithium niobate, K band, Signal to noise ratio, Prisms

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Proceedings Article | 12 September 2012 Paper

Intricate visibility effects from resolved emission of young stellar objects: the case of MWC158 observed with the VLTI

J. Kluska, F. Malbet, J.-P. Berger, B. Lazareff, J.-B. Le Bouquin, M. Benisty, F. Menard, C. Pinte, R. Millan-Gabet, W. Traub

Proceedings Volume 8445, 84450O (2012) https://doi.org/10.1117/12.925456

KEYWORDS: Stars, Visibility, Colorimetry, Image restoration, Interferometry, Black bodies, Telescopes, Data modeling, Near infrared, Modulation

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Proceedings Article | 12 September 2012 Paper

Accompanying optical interferometry worldwide: the JMMC tools and services

G. Mella, S. Lafrasse, L. Bourgès, A. Chelli, G. Duvert, O. Chesneau, F. Malbet, I. Tallon-Bosc, M. Vannier, O. Absil, M. Benisty, J.-P. Berger, H. Beust, D. Bonneau, P. Cruzalebes, X. Delfosse, A. Domiciano de Souza, P. Kervella, J. Kluska, J.-B. Le Bouquin, S. Meimon, A. Merand, F. Millour, J.-L. Monin, D. Mourard, L. Mugnier, N. Nardetto, K. Perraut, M. Tallon

Proceedings Volume 8445, 84453F (2012) https://doi.org/10.1117/12.925729

KEYWORDS: Data modeling, Interferometry, Calibration, Optical interferometry, Software development, Interfaces, Visibility, Interferometers, Java, Databases

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Proceedings Article | 12 September 2012 Paper

Fringe tracking performance monitoring: FINITO at VLTI

A. Mérand, F. Patru, J.-P. Berger, I. Percheron, S. Poupar

Proceedings Volume 8445, 84451K (2012) https://doi.org/10.1117/12.925450

KEYWORDS: Interferometry, Signal to noise ratio, Telescopes, Astatine, Visibility, Artificial neural networks, Optical tracking, Atmospheric turbulence, Sensors, Binary data

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Proceedings Article | 19 May 2011 Paper

Two telescopes ABCD electro-optic beam combiner based on lithium niobate for near infrared stellar interferometry

S. Heidmann, O. Caballero, A. Nolot, M. Gineys, T. Moulin, A. Delboulbé, L. Jocou, J.-B. Le Bouquin, J.-P. Berger, G. Martin

Proceedings Volume 8071, 807108 (2011) https://doi.org/10.1117/12.886725

KEYWORDS: Electro optics, Lithium niobate, Stellar interferometry, Phase shift keying, Electrodes, Telescopes, Waveguides, Near infrared, Astronomy, Mid-IR

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Proceedings Article | 2 August 2010 Paper

Estimating the phase in interferomety: performance comparison between multi-mode and single-mode schemes

E. Tatulli, N. Blind, F. Malbet, A. Chelli, J.-P. Berger

Proceedings Volume 7734, 77342F (2010) https://doi.org/10.1117/12.853672

KEYWORDS: Interferometry, Phase interferometry, Sensors, Infrared radiation, Current controlled current source, Visibility, Photodetectors, Atmospheric sensing, Spatial filters, Speckle

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Proceedings Article | 2 August 2010 Paper

Image reconstruction in optical interferometry: applications to the inner regions of protoplanetary disks

S. Renard, F. Malbet, M. Benisty, E. Thiébaut, J.-P. Berger

Proceedings Volume 7734, 773418 (2010) https://doi.org/10.1117/12.856607

KEYWORDS: Image restoration, K band, Data modeling, Stars, Signal to noise ratio, Interferometry, Visibility, Reconstruction algorithms, Interferometers, Optical interferometry

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Proceedings Article | 22 July 2010 Paper

The fringe detection laser metrology for the GRAVITY interferometer at the VLTI

H. Bartko, S. Gillessen, S. Rabien, M. Thiel, A. Gräter, M. Haug, S. Kellner, F. Eisenhauer, S. Lacour, C. Straubmeier, J.-P. Berger, L. Jocou, W. Chibani, S. Lüst, D. Moch, O. Pfuhl, W. Fabian, C. Araujo-Hauck, K. Perraut, W. Brandner, G. Perrin, A. Amorim

Proceedings Volume 7734, 773421 (2010) https://doi.org/10.1117/12.856698

KEYWORDS: Metrology, Calibration, Phase shifts, Laser metrology, Infrared cameras, Diodes, Telescopes, Sensors, Phase measurement, Cameras

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Proceedings Article | 22 July 2010 Paper

The GRAVITY acquisition and guiding system

Antonio Amorim, Jorge Lima, Oliver Pfuhl, Frank Eisenhauer, Stefan Kellner, Marcus Haug, Markus Thiel, Pedro Carvas, Guy Perrin, Wolfgang Brandner, Christian Straubmeier, Jean-Philippe Berger

Proceedings Volume 7734, 773415 (2010) https://doi.org/10.1117/12.856907

KEYWORDS: Cameras, Sensors, Mirrors, Imaging systems, Stars, Telescopes, Control systems, Adaptive optics, Laser systems engineering, Laser scattering

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Proceedings Article | 22 July 2010 Paper

PIONIER: a visitor instrument for VLTI

J.-P. Berger, G. Zins, B. Lazareff, J.-B. Lebouquin, L. Jocou, P. Kern, R. Millan-Gabet, W. Traub, P. Haguenauer, O. Absil, J.-C. Augereau, M. Benisty, N. Blind, X. Bonfils, A. Delboulbe, P. Feautrier, M. Germain, D. Gillier, P. Gitton, M. Kiekebusch, J. Knudstrup, J.-L. Lizon, Y. Magnard, F. Malbet, D. Maurel, F. Menard, M. Micallef, L. Michaud, S. Morel, T. Moulin, D. Popovic, K. Perraut, P. Rabou, S. Rochat, F. Roussel, A. Roux, E. Stadler, E. Tatulli

Proceedings Volume 7734, 773435 (2010) https://doi.org/10.1117/12.858647

KEYWORDS: Infrared radiation, Interferometry, Current controlled current source, Astatine, Integrated optics, Spectral resolution, K band, Visibility

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Proceedings Article | 22 July 2010 Open Access

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

Integrated optic beam combiners for stellar interferometry and nulling at near- and mid-infrared wavelengths

Hsien-kai Hsiao, Kim Winick, John Monnier, Jean-Philippe Berger

Proceedings Volume 7734, 77342T (2010) https://doi.org/10.1117/12.858295

KEYWORDS: Waveguides, Nulling interferometry, Integrated optics, Refractive index, Directional couplers, Interferometry, Astronomy, Stellar interferometry, Wave propagation, Channel waveguides

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Proceedings Article | 22 July 2010 Paper

The planar optics phase sensor: a study for the VLTI 2nd generation fringe tracker

Nicolas Blind, Jean-Baptiste Le Bouquin, Olivier Absil, Mazen Alamir, Jean-Philippe Berger, Denis Defrère, Philippe Feautrier, François Hénault, Laurent Jocou, Pierre Kern, Thomas Laurent, Fabien Malbet, Denis Mourard, Karine Rousselet-Perraut, Alain Sarlette, Jean Surdej, Nassima Tarmoul, Eric Tatulli, Lionel Vincent

Proceedings Volume 7734, 773424 (2010) https://doi.org/10.1117/12.857114

KEYWORDS: Sensors, Signal to noise ratio, Telescopes, Information operations, Astatine, Optical fibers, K band, Phase measurement, Interferometry, Photometry

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Proceedings Article | 22 July 2010 Paper

The Fiber Coupler subsystem of the future VLTI instrument GRAVITY

O. Pfuhl, F. Eisenhauer, M. Haug, M. Thiel, S. Kellner, A. Amorim, W. Brandner, J. P. Berger, K. Rousselet-Perraut, G. Perrin, C. Straubmeier, S. Gillessen, H. Bartko, A. Gräter

Proceedings Volume 7734, 77342A (2010) https://doi.org/10.1117/12.857506

KEYWORDS: Fiber couplers, Actuators, Mirrors, Prisms, Polarization, Telescopes, Single mode fibers, Cameras, Interferometry, Optical design

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Proceedings Article | 22 July 2010 Paper

Development of a high-dynamic range imaging instrument for a single telescope by a pupil remapping system

Takayuki Kotani, Sylvestre Lacour, Elodie Choquet, Elsa Huby, Guy Perrin, Pierre Fedou, Franck Marchis, Gaspard Duchene, Éric Thiébaut, Julien Woillez, Jean-Philippe Berger, Pascal Bordé, Olivier Chesneau, Pierre Kervella, Olivier Lai, Stephen Ridgway, Daniel Rouan, Alain Lecavelier des Etangs, Alfred Vidal-Madjar

Proceedings Volume 7734, 77343O (2010) https://doi.org/10.1117/12.856899

KEYWORDS: Telescopes, High dynamic range imaging, Imaging systems, Single mode fibers, Adaptive optics, Range imaging, Stars, Observatories, Space telescopes, Wavefronts

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Proceedings Article | 22 July 2010 Paper

A new control architecture for multi-beam fringe tracker

L. Vincent, M. Alamir, J. B. Le Bouquin, L. Jocou, K. Rousselet-Perraut, P. Kern, J. P. Berger

Proceedings Volume 7734, 773447 (2010) https://doi.org/10.1117/12.856822

KEYWORDS: Telescopes, Interferometry, Interferometers, Device simulation, Adaptive optics, Space telescopes, Wavefronts, Visibility, Control systems, Large telescopes

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Proceedings Article | 22 July 2010 Paper

The GRAVITY integrated optics beam combination

L. Jocou, K. Perraut, A. Nolot, J. P. Berger, T. Moulin, P. Labeye, S. Lacour, G. Perrin, J. B. Lebouquin, H. Bartko, M. Thiel, F. Eisenhauer

Proceedings Volume 7734, 773430 (2010) https://doi.org/10.1117/12.856375

KEYWORDS: Information operations, Prototyping, Integrated optics, Interferometry, K band, Telescopes, Phase shifts, Silica, Silicon, Glasses

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Proceedings Article | 22 July 2010 Paper

The very large telescope Interferometer: 2010 edition

Pierre Haguenauer, Jaime Alonso, Pierre Bourget, Stephane Brillant, Philippe Gitton, Stephane Guisard, Sébastien Poupar, Nicolas Schuhler, Roberto Abuter, Luigi Andolfato, Guillaume Blanchard, Jean-Philippe Berger, Angela Cortes, Frédéric Dérie, Françoise Delplancke, Nicola Di Lieto, Christophe Dupuy, Bruno Gilli, Andreas Glindemann, Serge Guniat, Gerhard Huedepohl, Andreas Kaufer, Jean-Baptiste Le Bouquin, Samuel Lévêque, Serge Ménardi, Antoine Mérand, Sebastien Morel, Isabelle Percheron, Than Phan Duc, Andres Pino, Andres Ramirez, Sridharan Rengaswamy, Andrea Richichi, Thomas Rivinius, Johannes Sahlmann, Markus Schoeller, Christian Schmid, Stan Stefl, Guillermo Valdes, Gerard van Belle, Stefan Wehner, Markus Wittkowski

Proceedings Volume 7734, 773404 (2010) https://doi.org/10.1117/12.857070

KEYWORDS: Telescopes, Astatine, Interferometers, Interferometry, Adaptive optics, Large telescopes, Mirrors, Observatories, Statistical analysis, Image quality

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Proceedings Article | 22 July 2010 Paper

Multi-axial integrated optics solution for POPS, a 2nd-generation VLTI fringe tracker

Nassima Tarmoul, François Hénault, Denis Mourard, Jean-Baptiste Le Bouquin, Laurent Jocou, Pierre Kern, Jean-Philippe Berger, Olivier Absil

Proceedings Volume 7734, 773425 (2010) https://doi.org/10.1117/12.858005

KEYWORDS: Telescopes, Sensors, Integrated optics, Astatine, Information operations, Phase measurement, Detection and tracking algorithms, Colorimetry, Optical transfer functions, Stars

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Proceedings Article | 18 May 2010 Paper

Low voltage, moderate rejection ratio electro-optic modulator at 2.2µm obtained by proton exchange in lithium niobate

Olga Caballero-Calero, Romain Burla, Thibaut Moulin, Alain Delboulbé, Laurent Jocou, Jean-Philippe Berger, Guillermo Martin

Proceedings Volume 7719, 77191D (2010) https://doi.org/10.1117/12.854310

KEYWORDS: Modulators, Lithium niobate, Modulation, K band, Nulling interferometry, Optical filters, Electrooptic modulators, Spectroscopy, Waveguides, Interferometers

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Proceedings Article | 28 July 2008 Paper

Phase closure image reconstruction for future VLTI instrumentation

Mercedes Filho, Stephanie Renard, Paulo Garcia, Gilles Duvert, Eric Thiebaut, John Young, Olivier Absil, Jean-Phillipe Berger, Thomas Beckert, Sebastian Hoenig, Dieter Schertl, Gerd Weigelt, Leonardo Testi, Eric Tatuli, Virginie Borkowski, Michaël de Becker, Jean Surdej, Bernard Aringer, Joseph Hron, Thomas Lebzelter, Andrea Chiavassa, Romano Corradi, Tim Harries

Proceedings Volume 7013, 70133Z (2008) https://doi.org/10.1117/12.787877

KEYWORDS: Telescopes, Visibility, Image restoration, Interferometry, Astatine, Data modeling, Stars, Interferometers, Fourier transforms, Optical interferometry

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Proceedings Article | 28 July 2008 Paper

Phase referencing in optical interferometry

Mercedes Filho, Paulo Garcia, Gilles Duvert, Gaspard Duchene, Eric Thiebaut, John Young, Olivier Absil, Jean-Phillipe Berger, Thomas Beckert, Sebastian Hoenig, Dieter Schertl, Gerd Weigelt, Leonardo Testi, Eric Tatuli, Virginie Borkowski, Michaël de Becker, Jean Surdej, Bernard Aringer, Joseph Hron, Thomas Lebzelter, Andrea Chiavassa, Romano Corradi, Tim Harries

Proceedings Volume 7013, 70131F (2008) https://doi.org/10.1117/12.787908

KEYWORDS: Visibility, Image restoration, Optical interferometry, Image resolution, Stars, Telescopes, Radio optics, Interferometry, Signal to noise ratio, Fourier transforms

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Proceedings Article | 28 July 2008 Paper

Characterization of integrated optics components for the second generation of VLTI instruments

S. Lacour, L. Jocou, T. Moulin, P. Labeye, M. Benisty, J.-P. Berger, A. Delboulbé, X. Haubois, E. Herwats, P. Kern, F. Malbet, K. Rousselet-Perraut, G. Perrin

Proceedings Volume 7013, 701316 (2008) https://doi.org/10.1117/12.789795

KEYWORDS: Integrated optics, Telescopes, K band, Semiconducting wafers, Waveguides, Phase shifts, Information operations, Modulation, Photomasks, Single mode fibers

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Proceedings Article | 28 July 2008 Paper

VSI: the VLTI spectro-imager

F. Malbet, D. Buscher, G. Weigelt, P. Garcia, M. Gai, D. Lorenzetti, J. Surdej, J. Hron, R. Neuhäuser, P. Kern, L. Jocou, J.-P. Berger, O. Absil, U. Beckmann, L. Corcione, G. Duvert, M. Filho, P. Labeye, E. Le Coarer, G. Li Causi, J. Lima, K. Perraut, E. Tatulli, E. Thiébaut, J. Young, G. Zins, A. Amorim, B. Aringer, T. Beckert, M. Benisty, X. Bonfils, A. Cabral, A. Chelli, O. Chesneau, A. Chiavassa, R. Corradi, M. De Becker, A. Delboulbé, G. Duchêne, T. Forveille, C. Haniff, E. Herwats, K.-H. Hofmann, J.-B. Le Bouquin, S. Ligori, D. Loreggia, A. Marconi, A. Moitinho, B. Nisini, P.-O. Petrucci, J. Rebordao, R. Speziali, L. Testi, F. Vitali

Proceedings Volume 7013, 701329 (2008) https://doi.org/10.1117/12.789710

KEYWORDS: Telescopes, Stars, Spectral resolution, Spatial resolution, Interferometry, Integrated optics, Space telescopes, Visibility, Image restoration, Signal to noise ratio

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The VLTI Spectro Imager (VSI) was proposed as a second-generation instrument of the Very Large Telescope Interferometer providing the ESO community with spectrally-resolved, near-infrared images at angular resolutions down to 1.1 milliarcsecond and spectral resolutions up to R = 12000. Targets as faint as K = 13 will be imaged without requiring a brighter nearby reference object; fainter targets can be accessed if a suitable reference is available. The unique combination of high-dynamic-range imaging at high angular resolution and high spectral resolution enables a scientific program which serves a broad user community and at the same time provides the opportunity for breakthroughs in many areas of astrophysics. The high level specifications of the instrument are derived from a detailed science case based on the capability to obtain, for the first time, milliarcsecond-resolution images of a wide range of targets including: probing the initial conditions for planet formation in the AU-scale environments of young stars; imaging convective cells and other phenomena on the surfaces of stars; mapping the chemical and physical environments of evolved stars, stellar remnants, and stellar winds; and disentangling the central regions of active galactic nuclei and supermassive black holes. VSI will provide these new capabilities using technologies which have been extensively tested in the past and VSI requires little in terms of new infrastructure on the VLTI. At the same time, VSI will be able to make maximum use of new infrastructure as it becomes available; for example, by combining 4, 6 and eventually 8 telescopes, enabling rapid imaging through the measurement of up to 28 visibilities in every wavelength channel within a few minutes. The current studies are focused on a 4-telescope version with an upgrade to a 6-telescope one. The instrument contains its own fringe tracker and tip-tilt control in order to reduce the constraints on the VLTI infrastructure and maximize the scientific return.

Proceedings Article | 28 July 2008 Paper

System overview of the VLTI Spectro-Imager

L. Jocou, J. P. Berger, F. Malbet, P. Kern, U. Beckmann, D. Lorenzetti, L. Corcione, G. Li Causi, D. Buscher, J. Young, M. Gai, G. Weigelt, G. Zins, G. Duvert, K. Perraut, P. Labeye, O. Absil, P. Garcia, D. Loreggia, J. Lima, J. Rebordao, S. Ligori, A. Amorim, P. Rabou, J. B. Le Bouquin, C. Haniff, E. Le Coarer, P. Feautrier, G. Duchene, M. Benisty, A. Chelli, E. Herwats, A. Delboulbé

Proceedings Volume 7013, 70132Y (2008) https://doi.org/10.1117/12.789154

KEYWORDS: Optical fibers, Mirrors, Sensors, Beam splitters, Interferometry, Spectrographs, Fourier transforms, Calibration, Information operations, Computed tomography

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Proceedings Article | 28 July 2008 Paper

Last technology and results from the IOTA interferometer

Ettore Pedretti, Wesley Traub, John Monnier, Peter Schuller, Sam Ragland, Jean–Philippe Berger, Rafael Millan-Gabet, Gary Wallace, Michael Burke, Marc Lacasse, Nathalie Thureau, Nathaniel Carleton

Proceedings Volume 7013, 70132V (2008) https://doi.org/10.1117/12.789751

KEYWORDS: Stars, Spectrographs, Interferometers, Infrared radiation, Prisms, Visibility, Telescopes, Data modeling, Infrared telescopes, Interferometry

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Proceedings Article | 28 July 2008 Paper

Prospects for near-infrared characterisation of hot Jupiters with the VLTI Spectro-Imager (VSI)

S. Renard, O. Absil, J.-P. Berger, X. Bonfils, T. Forveille, F. Malbet

Proceedings Volume 7013, 70132Z (2008) https://doi.org/10.1117/12.790494

KEYWORDS: Planets, Stars, Exoplanets, K band, Telescopes, Jupiter, Phase measurement, Interferometry, Phase shifts, Spatial resolution

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Proceedings Article | 28 July 2008 Paper

Imaging reconstruction for infrared interferometry: first images of YSOs environment

S. Renard, F. Malbet, E. Thiébaut, J.-P. Berger

Proceedings Volume 7013, 70131L (2008) https://doi.org/10.1117/12.787887

KEYWORDS: Interferometry, Image restoration, Visibility, Binary data, Stars, Interferometers, Infrared radiation, Reconstruction algorithms, Infrared imaging, Algorithm development

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Proceedings Article | 28 July 2008 Paper

Science case for 1 mas spectro-imagining in the near-infrared

Paulo Garcia, Jean-Philippe Berger, Alessandro Marconi, Alexander Krivov, Andrea Chiavassa, Bernard Aringer, Brunella Nisini, Denis Defrére, Dimitri Mawet, Dieter Schertl, Eric Tatuli, Eric Thiébaut, Fabien Baron, Fabien Malbet, Gaspard Duchéne, Gerd Weigelt, Gilles Duvert, Gilles Henri, Hubert Klahr, Jean Surdej, Jean-Charles Augereau, Jean-François Claeskens, John Young, Josef Hron, Karine Perraut, Karl-Heinz Hofmann, Leonardo Testi, Margarida Cunha, Mercedes Filho, Michaël De Becker, Olivier Absil, Olivier Chesneau, Pierre Collette, Pierre-Olivier Petrucci, Ralph Neuhaeuser, Romano Corradi, Sónia Antón, Sebastian Wolf, Sebastian Hoenig, Stephanie Renard, Thierry Forveille, Thomas Beckert, Thomas Lebzelter, Tim Harries, Virginie Borkowski, Xavier Bonfils

Proceedings Volume 7013, 70134N (2008) https://doi.org/10.1117/12.789216

KEYWORDS: Stars, Telescopes, Spatial resolution, Planets, Galactic astronomy, Adaptive optics, Spectral resolution, Visibility, Interferometry, High dynamic range imaging

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We present the work developed within the science team of the Very Large Telescope Interferometer Spectro-Imager (VSI) during the Phase A studies. VSI aims at delivering ~ 1 milliarcsecond resolution data cubes in the near-infrared, with several spectral resolutions up to 12 000, by combining up to 8 VLTI telescopes. In the design of an instrument, the science case plays a central role by supporting the instrument construction decision, defining the top-level requirements and balancing design options. The overall science philosophy of VSI was that of a general user instrument serving a broad community. The science team addressed themes which included several areas of astrophysics and illustrated specific modes of operation of the instrument: a) YSO disks and winds; b) Multiplicity of young stars; c) Exoplanets; d) Debris disks; e) Stellar surface imaging; f) The environments of evolved stars; g) AGN tori; h) AGN's Broad Line Region; i) Supermassive black-holes; and j) Microlensing. The main conclusions can be summarized as follows: a) The accessible targets and related science are extremely sensitive to the instrument limiting magnitude; the instrument should be optimized for sensitivity and have its own fringe tracker. b) Most of the science cases are readily achievable with on-axis fringe tracking, off-axis fringe tracking enabling extra science. c) In most targets (YSOs, evolved stars and AGNs), the interpretation and analysis of circumstellar/nuclear dust morphology requires direct access to the gas via spectral resolved studies of emission lines, requiring at least a spectral resolution of 2 500. d) To routinely deliver images at the required sensitivity, the number of telescopes in determinant, with 6 telescopes being favored. e) The factorial increase in the number of closure phases and visibilities, gained in a single observation, makes massive surveys of parameters and related science for the first time possible. f) High dynamic range imaging and very high dynamic range differential closure phase are possible allowing the study of debris disks and characterization of pegasides. g) Spectro-imaging in the near-infrared is highly complementary to ALMA, adaptive optics and interferometric imaging in the thermal infrared.

Proceedings Article | 28 July 2008 Paper

Polar-interferometry: what can be learnt from the IOTA/IONIC experiment

Jean-Baptiste Le Bouquin, Karine Rousselet-Perraut, Jean-Philippe Berger, Emilie Herwats, Myriam Benisty, Olivier Absil, Denis Defrere, John Monnier, Wesley Traub

Proceedings Volume 7013, 70130F (2008) https://doi.org/10.1117/12.786377

KEYWORDS: Polarization, Mirrors, Calibration, Polarimetry, Telescopes, Visibility, Interferometry, Sensors, Integrated optics, Polarizers

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Proceedings Article | 28 July 2008 Open Access

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 | 15 July 2008 Paper

Imaging the surface of Altair and a MIRC update

John Monnier, M. Zhao, E. Pedretti, N. Thureau, M. Ireland, P. Muirhead, J.-P. Berger, R. Millan-Gabet, G. Van Belle, T. ten Brummelaar, H. McAlister, S. Ridgway, N. Turner, L. Sturmann, J. Sturmann, D. Berger, A. Tannirkulam, J. Blum

Proceedings Volume 7013, 701302 (2008) https://doi.org/10.1117/12.789754

KEYWORDS: Calibration, Telescopes, Stars, Visibility, Binary data, Infrared radiation, Infrared imaging, Single mode fibers, Interferometers, Spectrographs

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Proceedings Article | 9 July 2008 Paper

The FIRST project: a single-mode fiber-based very high-dynamic range diffraction-limited imaging instrument at visible to near-infrared wavelengths

Takayuki Kotani, Guy Perrin, Sylvestre Lacour, Eric Thiébaut, Julien Woillez, Pierre Fedou, Jean-Philippe Berger, Pascal Bordé, Olivier Chesneau, Pierre Kervella, Olivier Lai, Alain Lecavelier, Stephen Ridgway, Daniel Rouan, Alfred Vidal-Madjar

Proceedings Volume 7014, 70141P (2008) https://doi.org/10.1117/12.789008

KEYWORDS: High dynamic range imaging, Range imaging, Telescopes, Astronomy, Point spread functions, Visibility, Diffraction, Imaging systems, Exoplanets, Prototyping

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Proceedings Article | 28 June 2006 Paper

An 8-telescope laboratory interferometric simulator for VSI-Vitruv

L. Jocou, M. Benisty, J. P. Berger, K. Perraut, P. Kern

Proceedings Volume 6268, 626839 (2006) https://doi.org/10.1117/12.673073

KEYWORDS: Information operations, Telescopes, Optical simulations, Device simulation, Interferometry, Polarization, Sensors, Integrated optics, Image restoration, Computer simulations

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Proceedings Article | 28 June 2006 Paper

Michigan Infrared Combiner (MIRC): commissioning results at the CHARA Array

John Monnier, Ettore Pedretti, Nathalie Thureau, Jean-Philippe Berger, Rafael Millan-Gabet, Theo ten Brummelaar, Harold McAlister, Judit Sturmann, Lazlo Sturmann, Phil Muirhead, Ajay Tannirkulam, Scott Webster, Ming Zhao

Proceedings Volume 6268, 62681P (2006) https://doi.org/10.1117/12.671982

KEYWORDS: Optical fibers, Infrared radiation, Telescopes, Infrared telescopes, Infrared imaging, Cameras, Sensors, Interferometers, K band, Spectrographs

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Proceedings Article | 28 June 2006 Paper

The VSI/VITRUV combiner: a phase-shifted four-beam integrated optics combiner

Myriam Benisty, Jean-Philippe Berger, Laurent Jocou, Fabien Malbet, Karine Perraut, Pierre Labeye, Pierre Kern

Proceedings Volume 6268, 62682D (2006) https://doi.org/10.1117/12.669432

KEYWORDS: Interferometry, Integrated optics, Telescopes, Information operations, Visibility, Phase shifts, Polarization, Computer programming, Phase measurement, Device simulation

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Proceedings Article | 28 June 2006 Paper

Integrated optic beam combiners in lithium niobate for stellar interferometer

Guangyu Li, Tobias Eckhause, Kim Winick, John Monnier, Jean-Philippe Berger

Proceedings Volume 6268, 626834 (2006) https://doi.org/10.1117/12.671628

KEYWORDS: Integrated optics, Waveguides, L band, Modulators, Electro optics, Interferometry, Lithium niobate, Spatial filters, Phase modulation, Planets

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Proceedings Article | 27 June 2006 Paper

IOTA: recent science and technology

F. Peter Schloerb, J.-P. Berger, N. Carleton, P. Hagenauer, P. Kern, P. Labeye, M. Lacasse, F. Malbet, R. Millan-Gabet, J. Monnier, M. Pearlman, E. Pedretti, K. Rousselet-Perraut, S. Ragland, P. Schuller, W. Traub, G. Wallace

Proceedings Volume 6268, 62680I (2006) https://doi.org/10.1117/12.672597

KEYWORDS: Stars, Interferometers, Phase measurement, Telescopes, Infrared telescopes, Visibility, Infrared radiation, Remote sensing, Spectroscopy, Observatories

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Proceedings Article | 27 June 2006 Paper

VSI: a milli-arcsec spectro-imager for the VLTI

F. Malbet, P. Kern, J.-P. Berger, L. Jocou, P. Garcia, D. Buscher, K. Rousselet-Perraut, G. Weigelt, M. Gai, J. Surdej, J. Hron, R. Neuhäuser, E. Le Coarer, P. Labeye, J. Le Bouquin, M. Benisty, E. Herwats

Proceedings Volume 6268, 62680Y (2006) https://doi.org/10.1117/12.673098

KEYWORDS: Telescopes, Stars, Information operations, Integrated optics, Spectral resolution, Spectrographs, Imaging spectroscopy, Sensors, Adaptive optics, Phase measurement

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Proceedings Article | 1 March 2006 Paper

Si-based integrated optics for stellar interferometry imaging

Pierre Labeye, Jean-Emmanuel Broquin, Jean-Philippe Berger, Pierre Kern, Patrice Noël

Proceedings Volume 6125, 61250O (2006) https://doi.org/10.1117/12.650509

KEYWORDS: Waveguides, Integrated optics, Stellar interferometry, Telescopes, Silicon, Interferometry, Space telescopes, Silica, K band, Telecommunications

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Proceedings Article | 31 March 2005 Paper

Si-based integrated optics for stellar interferometry imaging

Pierre Labeye, Jean-Philippe Berger, Patrick Pouteau, Patrice Noel, Pierre Kern

Proceedings Volume 5728, (2005) https://doi.org/10.1117/12.588896

KEYWORDS: Telescopes, Waveguides, Integrated optics, Interferometry, Interferometers, Stellar interferometry, Silica, Visibility, Silicon, Colorimetry

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Proceedings Article | 20 October 2004 Paper

Fringe tracking at the IOTA interferometer

Ettore Pedretti, Nathalie Thureau, Edward Wilson, Wesley Traub, John Monnier, Sam Ragland, Nathaniel Carleton, Rafael Millan-Gabet, F. Peter Schloerb, Michael Brewer, Jean-Philippe Berger, Marc Lacasse

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551625

KEYWORDS: Detection and tracking algorithms, Interferometers, Algorithm development, Telescopes, Signal to noise ratio, Phase measurement, Infrared radiation, Stars, Optical tracking, Infrared telescopes

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Proceedings Article | 20 October 2004 Paper

ASPRO-VLTI: a JMMC software dedicated to the preparation of VLTI observations

Gaspard Duchene, Jean-Philippe Berger, Gilles Duvert, Gerard Zins, Guillaume Mella

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.556014

KEYWORDS: Interferometry, Interferometers, Visibility, Software development, Telescopes, Optical interferometry, Systems modeling, Long baseline optical interferometry, Astronomy, Calibration

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Proceedings Article | 20 October 2004 Paper

VITRUV, a second-generation VLTI instrument for aperture synthesis imaging with eight telescopes

Fabien Malbet, Jean-Philippe Berger, Pierre Kern, Karine Rousselet-Perraut, Pierre-Olivier Petrucci, Francois Menard, Alain Chelli, Gilles Duvert, Jean-Baptiste Lebouquin, Eric Tatulli, Pierre Labeye, Isabelle Schanen-Duport, Eric Thiebaut, Paulo Garcia, I. Carvalho

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550673

KEYWORDS: Telescopes, Stars, Synthetic apertures, Magnetism, Integrated optics, Spatial resolution, Interferometers, Interferometry, Objectives, Radio optics

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Proceedings Article | 20 October 2004 Paper

IOTA: recent technology and science

Wesley Traub, Jean-Philippe Berger, Michael Brewer, Nathaniel Carleton, Pierre Kern, Stefan Kraus, Marc Lacasse, William McGonagle, Rafael Millan-Gabet, John Monnier, Ettore Pedretti, Sam Ragland, Robert Reich, F. Peter Schloerb, Peter Schuller, Kamal Souccar, Gary Wallace

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550916

KEYWORDS: Stars, Cameras, Telescopes, Control systems, Integrated optics, Infrared radiation, Phase measurement, Sensors, Prisms, Interferometers

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Proceedings Article | 20 October 2004 Paper

Characterizing closure-phase measurements at IOTA

Sam Ragland, Wesley Traub, Jean-Philippe Berger, Rafael Millan-Gabet, John Monnier, Ettore Pedretti, F. Schloerb, Nathaniel Carleton, Pierre Haguenauer, Pierre Kern, Pierre Labeye, Marc Lacasse, Fabien Malbet, Karine Rousselet-Perraut

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.552447

KEYWORDS: Stars, Interferometers, Telescopes, Integrated optics, Polarization, Visibility, Phase measurement, Infrared telescopes, Calibration, Absorption filters

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Proceedings Article | 20 October 2004 Paper

A laboratory interferometer simulator for integrated optics combiners qualification

Laurent Jocou, Myriam Benisty, Jean-Philippe Berger, Etienne LeCoarer, Pierre Haguenauer, Pierre Kern, Karine Rousselet-Perraut, Fabien Malbet

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551308

KEYWORDS: Telescopes, Integrated optics, Visibility, Interferometry, Polarization, Interferometers, Optical simulations, Information operations, Cameras, Space telescopes

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Proceedings Article | 20 October 2004 Paper

Integrated optics components in silica on silicon technology for stellar interferometry

Pierre Labeye, Jean-Philippe Berger, Mouna Salhi, Pierre Demolon, Karine Rousselet-Perraut, Fabien Malbet, Pierre Kern

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551863

KEYWORDS: Waveguides, Integrated optics, Beam propagation method, Interferometry, Wave propagation, Silica, Silicon, Information operations, Stellar interferometry, Nulling interferometry

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Proceedings Article | 20 October 2004 Paper

The Michigan Infrared Combiner (MIRC): IR imaging with the CHARA Array

John Monnier, Jean-Philippe Berger, Rafael Millan-Gabet, Theo ten Brummelaar

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.550804

KEYWORDS: Infrared imaging, Infrared radiation, Telescopes, Spectroscopy, Integrated optics, Stellar interferometry, Single mode fibers, Singular optics, Calibration, Synthetic apertures

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Proceedings Article | 20 October 2004 Paper

Comparison of integrated optics concepts for a near-infrared multi-telescope beam combiner

Jean-Baptiste LeBouquin, Jean-Philippe Berger, Pierre Labeye, Eric Tatulli, Fabien Malbet, Karine Rousselet-Perraut, Pierre Kern

Proceedings Volume 5491, (2004) https://doi.org/10.1117/12.551170

KEYWORDS: Modulation, Information operations, Integrated optics, Visibility, Signal to noise ratio, Telescopes, Spectral resolution, Interferometry, Waveguides, Atmospheric optics

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Proceedings Article | 21 February 2003 Paper

Reconfigurable electronics at the IOTA interferometer

Ettore Pedretti, Rafael Millan-Gabet, John Monnier, S. Morel, Wesley Traub, Nathaniel Carleton, Jean-Philippe Berger, P. Schloerb, Michael Brewer, Sam Ragland, Marc Lacasse

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459339

KEYWORDS: Clocks, Cameras, Sensors, Stars, Electronics, Data conversion, Bridges, Control systems, Telescopes, Logic

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Proceedings Article | 21 February 2003 Paper

SMART precision interferometry at 794 nm

John Monnier, Jean-Philippe Berger, Rafael Millan-Gabet, Wesley Traub, Nathaniel Carleton, Ettore Pedretti, Charles Coldwell, Costas Papaliolios

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459696

KEYWORDS: Interferometry, Avalanche photodetectors, Visibility, Calibration, Beam splitters, Polarization, Precision measurement, Astronomical imaging, Channel projecting optics, Astronomy

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Proceedings Article | 21 February 2003 Paper

New concept for combining 3 telescopes with integrated optics: multimode interferences (MMI)

Frederic Rooms, Alain Morand, Isabelle Schanen-Duport, Jean-Emmanuel Broquin, Pierre Haguenauer, Jean-Philippe Berger, M. Martin, Taha Benyattou

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.461587

KEYWORDS: Brain-machine interfaces, Waveguides, Ion exchange, Integrated optics, Refractive index, Visibility, Ions, Telescopes, Near field, Near field optics

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Proceedings Article | 21 February 2003 Paper

JHK-band spectro-interferometry of T Cep with the IOTA interferometer

Gerd Weigelt, Udo Beckmann, Jean-Philippe Berger, Thomas Bloecker, Michael Brewer, Karl-Heinz Hofmann, Marc Lacasse, Victor Malanushenko, Rafael Millan-Gabet, John Monnier, Keiichi Ohnaka, Ettore Pedretti, Dieter Schertl, F. Peter Schloerb, Michael Scholz, Wesley Traub, Boris Yudin

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458659

KEYWORDS: Visibility, K band, Stars, Interferometers, Radium, Linear filtering, Astronomy, Prisms, Temperature metrology, Spatial frequencies

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Proceedings Article | 21 February 2003 Paper

Near-infrared IOTA interferometry of the symbiotic star CH Cyg

Karl-Heinz Hofmann, Udo Beckmann, Jean-Philippe Berger, Thomas Bloecker, Michael Brewer, Marc Lacasse, Victor Malanushenko, Rafael Millan-Gabet, John Monnier, Keiichi Ohnaka, Ettore Pedretti, Dieter Schertl, F. Peter Schloerb, Michael Scholz, Wesley Traub, Gerd Weigelt, Boris Yudin

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458904

KEYWORDS: Visibility, Stars, K band, Interferometry, Electromagnetic coupling, Linear filtering, Astronomy, Interferometers, Radium, Physics

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Proceedings Article | 21 February 2003 Paper

OHANA: representative science objectives

Olivier Lai, Stephen Ridgway, Jean-Philippe Berger, Catherine Dougados, Vincent Coude du Foresto, Olivier Guyon, Regis Lachaume, Eugene Magnier, Fabien Malbet, Francois Menard, Denis Mourard, Guy Perrin, Helene Sol, Steve Warren, Julien Woillez

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459376

KEYWORDS: Stars, Interferometers, Telescopes, Visibility, Interferometry, K band, Signal to noise ratio, Light, Data modeling, Planets

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In this poster, we examine the science potential of an 800 meter interferometer such as the OHANA Array. The working assumptions are a K = 12 limiting magnitude, a 0.5 milliarcsecond resolution at K band, and a small (diffraction limit of individual telescope) field of view. The science cases described herein are by no means exhaustive and perhaps not even the ones that will eventually be carried out, but serve to illustrate the potential of the array. We expect that operation of the array will be proposal driven, so the actual science will come from the Mauna Kea communities. Our philosophy is that any measurement that can be made at a dedicated interferometer facility should not be a strong driver for OHANA. Therefore the science areas discussed in the poster focus on very high angular resolution measurements of faint sources. In some cases, science which can be addressed with simpler or dedicated facilities at an exploratory level can be carried to a significant new capability with OHANA. A limitng magnitude of 12 was obtained by simple computations, but first tests on the sky with the injection module (See adjacent poster on Phase I) will help narrow down this figure. At such sensitivity, Cepheid pulsations can be studied in considerable detail for a wide range of stellar parameters, leading to enhanced confidence in the accuracy of their use for distance measurement with minimal extrapolation or inferrence. The disk/star interaction zone in young stellar objects can be resolved with unprecedented detail for a range of masses and ages, providing direct information about the jet formation region, accretion rates and disk conditions. The broad line region of active galactic nuclei can be studied in a large number of sources of differing characteristics, testing specific models for AGN nuclear structure. For OHANA Phase III, a dual-star phase tracking capability is planned. With the resulting increased sensitivity, direct brown dwarf diameter measurement will provide a strong check on evolution models. Microlensing events could be resolved and provide unique new information about the lensing and the lensed objects.

Proceedings Article | 21 February 2003 Paper

OHANA and star formation: probing deep into the accretion/ejection mechanism

Francois Menard, Catherine Dougados, Regis Lachaume, Fabien Malbet, Jean-Philippe Berger

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459346

KEYWORDS: Stars, Planets, Interferometers, Interferometry, Astronomical imaging, Astronomy, Fiber optics, Telescopes, Adaptive optics, Environmental sensing

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Proceedings Article | 21 February 2003 Paper

IOTA observation of the circumstellar envelope of R CrB

Keiichi Ohnaka, Udo Beckmann, Jean-Philippe Berger, Michael Brewer, Karl-Heinz Hofmann, Marc Lacasse, Victor Malanushenko, Rafael Millan-Gabet, John Monnier, Ettore Pedretti, Dieter Schertl, F. Peter Schloerb, Victor Shenavrin, Wesley Traub, Gerd Weigelt, Boris Yudin

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.458931

KEYWORDS: Visibility, Stars, K band, Interferometry, Surface conduction electron emitter displays, Clouds, Infrared telescopes, Astronomy, Infrared radiation, Optical telescopes

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Proceedings Article | 21 February 2003 Paper

New beam-combination techniques at IOTA

Wesley Traub, Angela Ahearn, Nathaniel Carleton, Jean-Philippe Berger, Michael Brewer, Karl-Heinz Hofmann, Pierre Kern, Marc Lacasse, Fabien Malbet, Rafael Millan-Gabet, John Monnier, Keiichi Ohnaka, Ettore Pedretti, Sam Ragland, F. Peter Schloerb, Kamal Souccar, Gerd Weigelt

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459718

KEYWORDS: Telescopes, Stars, Sensors, Interferometers, Integrated optics, Mirrors, Charge-coupled devices, Visibility, Computing systems, Control systems

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Proceedings Article | 21 February 2003 Paper

Integrated-optics 3-way beam combiner for IOTA

Jean-Philippe Berger, Pierre Haguenauer, Pierre Kern, Karine Rousselet-Perraut, Fabien Malbet, Stephane Gluck, Laure Lagny, Isabelle Schanen-Duport, Emmanuel Laurent, Alain Delboulbe, Eric Tatulli, Wesley Traub, Nathaniel Carleton, Rafael Millan-Gabet, John Monnier, Ettore Pedretti, S. Ragland

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.457983

KEYWORDS: Information operations, Integrated optics, Visibility, Calibration, Optical fibers, Stars, Interferometers, Waveguides, Telescopes, Polarization

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Proceedings Article | 21 February 2003 Paper

Guided optics in interferometry

Jean-Philippe Berger

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.456972

KEYWORDS: Waveguides, Interferometry, Interferometers, Telescopes, Dispersion, Integrated optics, Single mode fibers, Wave propagation, Polarization, Cladding

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Proceedings Article | 21 February 2003 Paper

Increasing the imaging capabilities of the VLTI using integrated optics

Pierre Kern, Fabien Malbet, Jean-Philippe Berger, Pierre Haguenauer, Isabelle Schanen-Duport, Pierre Labeye, Karine Perraut-Rousselet, Brahim Arezki, Alain Delboulbe, Laurent Jocou, Christian Perrier-Bellet, Wesley Traub, Rafael Millan-Gabet, John Monnier, Ettore Pedretti, Andreas Glindemann, Pierre Kervella, Emmanuel di Folco, Philippe Gitton

Proceedings Volume 4838, (2003) https://doi.org/10.1117/12.459074

KEYWORDS: Telescopes, Integrated optics, Interferometers, Interferometry, Stars, Visibility, Image quality, Waveguides, Polarization, Spatial resolution

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Proceedings Article | 18 June 2002 Paper

Design of a three-telescope interferometer using a multimode interference waveguide

Frederic Rooms, Alain Morand, Isabelle Schanen-Duport, Jean-Philippe Berger, Pierre Benech

Proceedings Volume 4640, (2002) https://doi.org/10.1117/12.431634

KEYWORDS: Waveguides, Beam propagation method, Interferometry, Polarization, Wave propagation, Telescopes, Ions, Interferometers, Spatial filters, Glasses

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Proceedings Article | 5 July 2000 Paper

New insights into the nature of the circumstellar environment of FU Ori

Jean-Philippe Berger, Fabien Malbet, M. Mark Colavita, Damien Segransan, Rafael Millan-Gabet, Wesley Traub

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390259

KEYWORDS: Visibility, Calibration, Interferometers, Stars, Infrared telescopes, Infrared radiation, Ions, Tin, Observatories, K band

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Proceedings Article | 5 July 2000 Paper

Probing the inner part of protoplanetary disks with the VLTI

Fabien Malbet, Regis Lachaume, Jean-Louis Monin, Jean-Philippe Berger

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390214

KEYWORDS: Visibility, Stars, Tin, Binary data, Imaging spectroscopy, Chlorine, Interferometry, Infrared radiation, Spatial resolution, Physics

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Proceedings Article | 5 July 2000 Paper

Combining up to eight telescope beams in a single chip

Jean-Philippe Berger, Pierre Benech, Isabelle Schanen-Duport, Ghislaine Maury, Fabien Malbet, Francois Reynaud

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390177

KEYWORDS: Telescopes, Integrated optics, Waveguides, Visibility, Birefringence, Phase measurement, Computer programming, Interferometers, Interferometry, Beam splitters

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Proceedings Article | 5 July 2000 Paper

Planar optics three-telescope beam combiners for astronomical interferometry

Pierre Haguenauer, Marco Severi, Isabelle Schanen-Duport, Karine Perraut-Rousselet, Jean-Philippe Berger, Yann Duchene, Matthieu Lacolle, Pierre Kern, Fabien Malbet, Pierre Benech

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390193

KEYWORDS: Interferometry, Integrated optics, Telescopes, Optics manufacturing, Visibility, Phase measurement, Waveguides, Astronomical interferometry, Polarization, Geometrical optics

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Proceedings Article | 5 July 2000 Paper

Qualification of IONIC (integrated optics near-infrared interferometric camera)

Karine Perraut-Rousselet, Pierre Haguenauer, Panayoti Petmezakis, Jean-Philippe Berger, Denis Mourard, Sam Ragland, Guillaume Huss, Francois Reynaud, Etienne LeCoarer, Pierre Kern, Fabien Malbet

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390185

KEYWORDS: Integrated optics, Cameras, Interferometry, Telescopes, Prototyping, Visibility, Optical fibers, K band, Astronomy, Interferometers

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Proceedings Article | 5 July 2000 Paper

Planar integrated optics contribution to instrumention for interferometry

Pierre Kern, Jean-Philippe Berger, Pierre Haguenauer, Fabien Malbet, Karine Perraut-Rousselet

Proceedings Volume 4006, (2000) https://doi.org/10.1117/12.390178

KEYWORDS: Interferometry, Integrated optics, Telescopes, Interferometers, Sensors, Ion exchange, Modulation, Wave propagation, Glasses, Atmospheric optics

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Proceedings Article | 24 July 1998 Paper

Integrated optics components for interferometric beam combination

Jean-Philippe Berger, Karine Rousselet-Perraut, Pierre Kern, Fabien Malbet, Isabelle Schanen-Duport, Laurent Nabias, Pierre Benech

Proceedings Volume 3350, (1998) https://doi.org/10.1117/12.317158

KEYWORDS: Integrated optics, Interferometry, Waveguides, Calibration, Infrared radiation, Dispersion, Birefringence, Telescopes, Wave propagation, Sensors

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