Dr. Laurent Ravera Profile

Dr. Laurent Ravera

Project Manager at Institut de Recherche en Astrophysique et Planétologie

SPIE Involvement:

Author

Publications (25)

Proceedings Article | 21 August 2024 Poster + Paper

The DEMUX module of the ATHENA/X-IFU digital readout electronics demonstration model

D. Murat, L. Ravera, Y. Parot, T. Camus, O. Coeur-Joly, C. Guerin

Proceedings Volume 13093, 130934H (2024) https://doi.org/10.1117/12.3020045

KEYWORDS: Field programmable gate arrays, Equipment, X-rays, Time division multiplexing, Digital electronics, Design, Crosstalk, Analog to digital converters

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Proceedings Article | 21 August 2024 Presentation + Paper

The detection chain for Athena X-IFU: a status on the design and demonstrations

H. Geoffray, B. Jackson, S. Bandler, S. Smith, W. Doriese, M. Durkin, J. van der Kuur, P. van der Hulst, M. Kiviranta, D. Prêle, M. Gonzalez, L. Ravera, Yann Parot, R. Den Hartog, E. Taralli, D. Vaccaro, H. van Weers, J. Adams, J. Chervenak, S. Hull, K. Sakai, N. Wakeham, C. Reintsema, J. Ullom, S. Beaumont, F. Brachet, C. Cenac-Morthe, E. Cucchetti, C. Daniel, P. Peille, J. Soucek, A. Argan, C. Macculi

Proceedings Volume 13093, 130930W (2024) https://doi.org/10.1117/12.3020011

KEYWORDS: Design, Multiplexers, Time division multiplexing, Crosstalk, X-rays

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Proceedings Article | 31 August 2022 Presentation + Paper

Design of the detection chain for Athena X-IFU

H. Geoffray, B. Jackson, S. Bandler, S. Smith, W. Doriese, M. Durkin, J. van der Kuur, B.-J. van Leeuwen, M. Kiviranta, D. Prêle, L. Ravera, Y. Parot, H. van Weers, J. W. den Herder, J. Adams, J. Chervenak, C. Reintsema, J. Ullom, F. Brachet, A. Ledot, P. Peille, D. Barret

Proceedings Volume 12181, 121810M (2022) https://doi.org/10.1117/12.2629960

KEYWORDS: Amplifiers, Electronics, Multiplexers, Staring arrays, Time division multiplexing, Sensors, X-rays, Multiplexing, Connectors, Switching

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Proceedings Article | 31 August 2022 Poster + Paper

A 50 mK test bench for demonstration of the readout chain of Athena/X-IFU

Florent Castellani, Sophie Beaumont, François Pajot, Gilles Roudil, Joseph Adams, Simon Bandler, James Chervenak, Christophe Daniel, Edward Denison, W. Bertrand Doriese, Michel Dupieux, Malcolm Durkin, Hervé Geoffray, Gene Hilton, David Murat, Yann Parot, Philippe Peille, Damien Prêle, Laurent Ravera, Carl Reintsema, Kazuhiro Sakai, Robert Stevens, Joel Ullom, Leila Vale, Nicholas Wakeham

Proceedings Volume 12181, 1218144 (2022) https://doi.org/10.1117/12.2630323

KEYWORDS: Electronics, Time division multiplexing, X-rays, Prototyping, Photons, Multiplexing, Linear filtering

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Proceedings Article | 24 June 2021 Poster + Paper

A test platform for the detection and readout chain for the Athena X-IFU

Gabriele Betancourt-Martinez, François Pajot, Gilles Roudil, Joseph Adams, Simon Bandler, Sophie Beaumont, Bernard Bertrand, Florent Castellani, Edoardo Cucchetti, Michel Dupieux, Hervé Geoffray, Philippe Peille, Laurent Ravera, Doreen Wernicke, Aurélien Ledot

Proceedings Volume 11444, 1144444 (2021) https://doi.org/10.1117/12.2561281

KEYWORDS: Staring arrays, Sensors, Magnetism, Fused deposition modeling, Electronics, Magnetic sensors, X-rays, Time division multiplexing, Superconductors, Temperature metrology

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Proceedings Article | 13 December 2020 Poster + Presentation + Paper

Warm front end electronic modelization for the X-IFU ATHENA readout chain simulation

Damien Prêle, Si Chen, Alexis Coleiro, Peggy Varniere, Philippe Peille, Laurent Ravera, Christian Kirsch

Proceedings Volume 11444, 114443U (2020) https://doi.org/10.1117/12.2560367

KEYWORDS: Fused deposition modeling, Amplifiers, Multiplexing, Modulation, X-rays, Space observatories, Cryogenics, Superconductors, Temperature metrology, Signal generators

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Proceedings Article | 13 December 2020 Presentation

Conceptual design of the detection chain for the X-IFU on Athena

Hervé Geoffray, Brian Jackson, Simon Bandler, W. Bertrand Doriese, Mikko Kirivanta, Damien Prêle, Laurent Ravera, Andrea Argan, Marco Barbera, Jan van der Kuur, Bert Joost van Leeuwen, Henk van Weers, Ruud Hoogeveen, Jan-Willem den herder, Stephen Smith, Joe Adams, James Chervenak, Malcom Durkin, Carl Reintsema, Joel Ullom, Yann Parot, Didier Barret, Claudio Macculi, Luigi Piro, Frank Brachet, Aurélien Ledot

Proceedings Volume 11444, 114440X (2020) https://doi.org/10.1117/12.2563628

KEYWORDS: Sensors, Detector arrays, Electronics, Environmental sensing, Aerospace engineering, Multiplexing, Fused deposition modeling

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Proceedings Article | 31 July 2018 Presentation + Paper

The ATHENA X-ray Integral Field Unit (X-IFU)

Didier Barret, Thien Lam Trong, Jan-Willem den Herder, Luigi Piro, Massimo Cappi, Juhani Houvelin, Richard Kelley, J. Miguel Mas-Hesse, Kazuhisa Mitsuda, Stéphane Paltani, Gregor Rauw, Agata Rozanska, Joern Wilms, Simon Bandler, Marco Barbera, Xavier Barcons, Enrico Bozzo, Maria Teresa Ceballos, Ivan Charles, Elisa Costantini, Anne Decourchelle, Roland den Hartog, Lionel Duband, Jean-Marc Duval, Fabrizio Fiore, Flavio Gatti, Andrea Goldwurm, Brian Jackson, Peter Jonker, Caroline Kilbourne, Claudio Macculi, Mariano Mendez, Silvano Molendi, Piotr Orleanski, François Pajot, Etienne Pointecouteau, Frederick Porter, Gabriel Pratt, Damien Prêle, Laurent Ravera, Kosuke Sato, Joop Schaye, Keisuke Shinozaki, Tanguy Thibert, Luca Valenziano, Véronique Valette, Jacco Vink, Natalie Webb, Michael Wise, Noriko Yamasaki, Françoise Douchin, Jean-Michel Mesnager, Bernard Pontet, Alice Pradines, Graziella Branduardi-Raymont, Esra Bulbul, Mauro Dadina, Stefano Ettori, Alexis Finoguenov, Yasushi Fukazawa, Agnieszka Janiuk, Jelle Kaastra, Pasquale Mazzotta, Jon Miller, Giovanni Miniutti, Yael Naze, Fabrizio Nicastro, Salavtore Scioritino, Aurora Simonescu, Jose Miguel Torrejon, Benoit Frezouls, Hervé Geoffray, Philippe Peille, Corinne Aicardi, Jérôme André, Christophe Daniel, Antoine Clénet, Christophe Etcheverry, Emilie Gloaguen, Gilles Hervet, Antoine Jolly, Aurélien Ledot, Irwin Paillet, Roseline Schmisser, Bruno Vella, Jean-Charles Damery, Kevin Boyce, Mike Dipirro, Simone Lotti, Denis Schwander, Stephen Smith, Bert-Joost Van Leeuwen, Henk van Weers, Nicolas Clerc, Beatriz Cobo, Thomas Dauser, Christian Kirsch, Edoardo Cucchetti, Megan Eckart, Philippe Ferrando, Lorenzo Natalucci

Proceedings Volume 10699, 106991G (2018) https://doi.org/10.1117/12.2312409

KEYWORDS: Spectral resolution, X-rays, Sensors, Cryogenics, Optical filters, Wind energy, Electronics, X-ray astronomy, Mirrors, X-ray sources

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Proceedings Article | 6 July 2018 Paper

Performance of a state-of-the-art DAC system for FDM readout

R. den Hartog, B.-J. van Leeuwen, P. Peille, J. van der Kuur, L. Ravera, D. van Loon, B. Jackson, J.-W. den Herder

Proceedings Volume 10699, 106994Q (2018) https://doi.org/10.1117/12.2312793

KEYWORDS: Instrument modeling, Performance modeling, Sensors, X-ray detectors, X-rays, Multiplexing, Interference (communication), Device simulation

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Proceedings Article | 6 July 2018 Paper

Numerical simulation and validation of ATHENA/X-IFU/digital readout electronics

Paul Gumuchian, François Pajot, Laurent Ravera, Etienne Pointecouteau, Antoine Clénet, Bertrand Bernard, Christophe Oziol

Proceedings Volume 10699, 106994W (2018) https://doi.org/10.1117/12.2313536

KEYWORDS: Monte Carlo methods, Signal detection, Electronics, Sensors, Device simulation, Signal to noise ratio, Computer architecture, Electronic filtering, Modulation, Interference (communication)

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Proceedings Article | 6 July 2018 Paper

ATHENA X-ray Integral Field Unit on-board event processor: analysis of performance of two triggering algorithms

Beatriz Cobo, María Teresa Ceballos, Philippe Peille, Jean-Michel Mesnager, Joern Wilms, Thomas Dauser, Christian Kirsch, Frédéric Pinsard, Christophe Cara, Michel Gros, Laurent Ravera, Simon Bandler, Frederick Porter, Caroline Kilbourne, Kazuhiro Sakai

Proceedings Volume 10699, 106994S (2018) https://doi.org/10.1117/12.2313268

KEYWORDS: Detection and tracking algorithms, Photons, Beryllium, X-rays, Algorithm development, Reconstruction algorithms, Optimal filtering

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Proceedings Article | 6 July 2018 Paper

First results of the ATHENA/X-IFU digital readout electronics prototype

Laurent Ravera, Paul Gumuchian, Antoine Clénet, Bernard Bertrand, David Murat, Christophe Oziol, Thierry Camus, Etienne Pointecouteau, Didier Barret

Proceedings Volume 10699, 106994V (2018) https://doi.org/10.1117/12.2313519

KEYWORDS: Prototyping, Digital electronics, Electronics, Sensors, Computer simulations, Integrated circuits, Field programmable gate arrays, Digital signal processing

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Proceedings Article | 17 August 2016 Paper

The Athena X-ray Integral Field Unit (X-IFU)

Didier Barret, Thien Lam Trong, Jan-Willem den Herder, Luigi Piro, Xavier Barcons, Juhani Huovelin, Richard Kelley, J. Miguel Mas-Hesse, Kazuhisa Mitsuda, Stéphane Paltani, Gregor Rauw, Agata Rożanska, Joern Wilms, Marco Barbera, Enrico Bozzo, Maria Teresa Ceballos, Ivan Charles, Anne Decourchelle, Roland den Hartog, Jean-Marc Duval, Fabrizio Fiore, Flavio Gatti, Andrea Goldwurm, Brian Jackson, Peter Jonker, Caroline Kilbourne, Claudio Macculi, Mariano Mendez, Silvano Molendi, Piotr Orleanski, François Pajot, Etienne Pointecouteau, Frederick Porter, Gabriel Pratt, Damien Prêle, Laurent Ravera, Etienne Renotte, Joop Schaye, Keisuke Shinozaki, Luca Valenziano, Jacco Vink, Natalie Webb, Noriko Yamasaki, Françoise Delcelier-Douchin, Michel Le Du, Jean-Michel Mesnager, Alice Pradines, Graziella Branduardi-Raymont, Mauro Dadina, Alexis Finoguenov, Yasushi Fukazawa, Agnieszka Janiuk, Jon Miller, Yaël Nazé, Fabrizio Nicastro, Salvatore Sciortino, Jose Miguel Torrejon, Hervé Geoffray, Isabelle Hernandez, Laure Luno, Philippe Peille, Jérôme André, Christophe Daniel, Christophe Etcheverry, Emilie Gloaguen, Jérémie Hassin, Gilles Hervet, Irwin Maussang, Jérôme Moueza, Alexis Paillet, Bruno Vella, Gonzalo Campos Garrido, Jean-Charles Damery, Chantal Panem, Johan Panh, Simon Bandler, Jean-Marc Biffi, Kevin Boyce, Antoine Clénet, Michael DiPirro, Pierre Jamotton, Simone Lotti, Denis Schwander, Stephen Smith, Bert-Joost van Leeuwen, Henk van Weers, Thorsten Brand, Beatriz Cobo, Thomas Dauser, Jelle de Plaa, Edoardo Cucchetti

Proceedings Volume 9905, 99052F (2016) https://doi.org/10.1117/12.2232432

KEYWORDS: X-rays, Sensors, Spectral resolution, Stars, Electronics, Galactic astronomy, Iron, Calibration, Signal to noise ratio, Staring arrays

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Proceedings Article | 28 August 2014 Paper

The DCU: the detector control unit for SPICA-SAFARI

Antoine Clénet, Laurent Ravera, Bernard Bertrand, Roland den Hartog, Brian Jackson, Bert-Joost van Leeuven, Dennis van Loon, Yann Parot, Etienne Pointecouteau, Anthony Sournac

Proceedings Volume 9143, 914346 (2014) https://doi.org/10.1117/12.2055740

KEYWORDS: Sensors, Multiplexing, Fused deposition modeling, Feedback signals, Signal processing, Phase shifts, Digital signal processing, Digital electronics, Control systems, Data processing

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IRAP is developing the warm electronic, so called Detector Control Unit" (DCU), in charge of the readout of the SPICA-SAFARI's TES type detectors. The architecture of the electronics used to readout the 3 500 sensors of the 3 focal plane arrays is based on the frequency domain multiplexing technique (FDM). In each of the 24 detection channels the data of up to 160 pixels are multiplexed in frequency domain between 1 and 3:3 MHz. The DCU provides the AC signals to voltage-bias the detectors; it demodulates the detectors data which are readout in the cold by a SQUID; and it computes a feedback signal for the SQUID to linearize the detection chain in order to optimize its dynamic range. The feedback is computed with a specific technique, so called baseband feedback (BBFB) which ensures that the loop is stable even with long propagation and processing delays (i.e. several µs) and with fast signals (i.e. frequency carriers at 3:3 MHz). This digital signal processing is complex and has to be done at the same time for the 3 500 pixels. It thus requires an optimisation of the power consumption. We took the advantage of the relatively reduced science signal bandwidth (i.e. 20 - 40 Hz) to decouple the signal sampling frequency (10 MHz) and the data processing rate. Thanks to this method we managed to reduce the total number of operations per second and thus the power consumption of the digital processing circuit by a factor of 10. Moreover we used time multiplexing techniques to share the resources of the circuit (e.g. a single BBFB module processes 32 pixels). The current version of the firmware is under validation in a Xilinx Virtex 5 FPGA, the final version will be developed in a space qualified digital ASIC. Beyond the firmware architecture the optimization of the instrument concerns the characterization routines and the definition of the optimal parameters. Indeed the operation of the detection and readout chains requires to properly define more than 17 500 parameters (about 5 parameters per pixel). Thus it is mandatory to work out an automatic procedure to set up these optimal values. We defined a fast algorithm which characterizes the phase correction to be applied by the BBFB firmware and the pixel resonance frequencies. We also defined a technique to define the AC-carrier initial phases in such a way that the amplitude of their sum is minimized (for a better use of the DAC dynamic range).

Proceedings Article | 29 July 2014 Paper

The SIRIUS mixed analog-digital ASIC developed for the LOFT LAD and WFM instruments

A. Cros, D. Rambaud, E. Moutaye, L. Ravera, D. Barret, P. Caïs, R. Clédassou, P. Bodin, J. Y. Seyler, A. Bonzo, M. Feroci, C. Labanti, Y. Evangelista, Y. Favre

Proceedings Volume 9144, 914463 (2014) https://doi.org/10.1117/12.2056712

KEYWORDS: Sensors, Capacitors, Analog electronics, Californium, Capacitance, Prototyping, Neodymium, Ions, Amplifiers, Silicon

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Proceedings Article | 25 July 2014 Paper

Requirements for the detectors and read-out of ATHENA X-IFU

R. den Hartog, D. Barret, L. Gottardi, J.-W. den Herder, B. Jackson, P. de Korte, J. van der Kuur, B.-J. van Leeuwen, D. van Loon, A. Nieuwenhuizen, L. Ravera

Proceedings Volume 9144, 91445Q (2014) https://doi.org/10.1117/12.2056434

KEYWORDS: Sensors, Resistance, Image resolution, Photons, Modulation, X-ray detectors, X-rays, Multiplexing, Radon, Detector arrays

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Proceedings Article | 24 July 2014 Paper

The X-ray Integral Field Unit (X-IFU) for Athena

Laurent Ravera, Didier Barret, Jan Willem den Herder, Luigi Piro, Rodolphe Clédassou, Etienne Pointecouteau, Philippe Peille, Francois Pajot, Monique Arnaud, Claude Pigot, Lionel Duband, Christophe Cara, Roland den Hartog, Luciano Gottardi, Hiroki Akamatsu, Jan van der Kuur, Henk van Weers, Jelle de Plaa, Claudia Macculi, Simone Lotti, Guido Torrioli, Flavio Gatti, Luca Valenziano, Marco Barbera, Xavier Barcons, María Teresa Ceballos, Lourdes Fàbrega, José Miguel Mas-Hesse, Mathew Page, Phillip Guttridge, Richard Willingale, Stéphane Paltani, Ludovic Genolet, Enrico Bozzo, Gregor Rauw, Etienne Renotte, Jörn Wilms, Christian Schmid

Proceedings Volume 9144, 91442L (2014) https://doi.org/10.1117/12.2055884

KEYWORDS: Sensors, X-rays, Electronics, Particles, Electroluminescent displays, Spectral resolution, Image resolution, X-ray detectors, Photons, Digital electronics

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Proceedings Article | 24 July 2014 Paper

The DRE: the digital readout electronics for ATHENA X-IFU

Laurent Ravera, Christophe Cara, María Teresa Ceballos, Xavier Barcons, Didier Barret, Rodolphe Clédassou, Antoine Clénet, Beatriz Cobo, Eric Doumayrou, Roland den Hartog, Bert-Joost van Leeuwen, Dennis van Loon, José Miguel Mas-Hesse, Claude Pigot, Etienne Pointecouteau

Proceedings Volume 9144, 91445T (2014) https://doi.org/10.1117/12.2055750

KEYWORDS: Electronics, Digital electronics, X-rays, Sensors, Data processing, Fused deposition modeling, Signal detection, Multiplexing, Spectral resolution, Digital signal processing

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Proceedings Article | 24 September 2012 Paper

The DCU: the detector control unit of the SAFARI instrument onboard SPICA

A. Clénet, L. Ravera, B. Bertrand, A. Cros, R. Hou, B. Jackson, B. van Leeuwen, D. Van Loon, Y. Parot, E. Pointecouteau, A. Sournac, N. Ta

Proceedings Volume 8452, 84521V (2012) https://doi.org/10.1117/12.925380

KEYWORDS: Sensors, Filtering (signal processing), Space telescopes, Digital electronics, Telescopes, Electronic filtering, Signal processing, Field programmable gate arrays, Infrared telescopes, Space operations

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Proceedings Article | 17 September 2012 Paper

The x-ray microcalorimeter spectrometer onboard Athena

J. den Herder, D. Bagnali, S. Bandler, M. Barbera, X. Barcons, D. Barret, P. Bastia, M. Bisotti, K. Boyce, C. Cara, M. Ceballos, L. Corcione, B. Cobo, L. Colasanti, J. de Plaa, M. DiPirro, W. Doriese, Y. Ezoe, R. Fujimoto, F. Gatti, L. Gottardi, P. Guttridge, R. den Hartog, I. Hepburn, R. Kelley, K. Irwin, Y. Ishisaki, C. Kilbourne, P. A. de Korte, J. van der Kuur, S. Lotti, C. Macculi, K. Mitsuda, T. Mineo, L. Natalucci, T. Ohashi, M. Page, S. Paltani, E. Perinati, L. Piro, C. Pigot, F. Porter, G. Rauw, L. Ravera, E. Renotte, J.-L. Sauvageot, C. Schmid, S. Sciortino, P. Shirron, Y. Takei, G. Torrioli, M. Tsujimoto, L. Valenziano, D. Willingale, C. de Vries, H. van Weers, J. Wilms, N. Yamasaki

Proceedings Volume 8443, 84432B (2012) https://doi.org/10.1117/12.924269

KEYWORDS: Sensors, X-rays, Spectral resolution, Multiplexing, Electronics, Image resolution, Spectroscopy, Spatial resolution, Photons, Temperature metrology

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Proceedings Article | 30 July 2010 Paper

The High Time Resolution Spectrometer (HTRS) aboard the International X-ray Observatory (IXO)

Didier Barret, Laurent Ravera, Pierre Bodin, Carine Amoros, Martin Boutelier, Jean-Michel Glorian, Olivier Godet, Guillaume Orttner, Karine Lacombe, Roger Pons, Damien Rambaud, Pascale Ramon, Souad Ramchoun, Jean-Marc Biffi, Marielle Belasic, Rodolphe Clédassou, Delphine Faye, Benjamin Pouilloux, Christian Motch, Laurent Michel, Peter Lechner, Adrian Niculae, Lothar Strueder, Giuseppe Distratis, Eckhard Kendziorra, Andréa Santangelo, Christoph Tenzer, Henning Wende, Joern Wilms, Ingo Kreykenbohm, Christian Schmid, Stéphane Paltani, Franck Cadoux, Carlo Fiorini, Luca Bombelli, Mariano Méndez, Sandro Mereghetti

Proceedings Volume 7732, 77321M (2010) https://doi.org/10.1117/12.856955

KEYWORDS: Sensors, X-rays, Analog electronics, Electronics, Monte Carlo methods, Aluminum, Silicon, Staring arrays, Field programmable gate arrays, Quantum efficiency

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Proceedings Article | 20 July 2010 Paper

The silicon drift detector for the IXO high-time resolution spectrometer

Peter Lechner, Carine Amoros, Didier Barret, Pierre Bodin, Martin Boutelier, Rouven Eckhardt, Carlo Fiorini, Eckhard Kendziorra, Karine Lacombe, Adrian Niculae, Benjamin Pouilloux, Roger Pons, Damien Rambaud, Laurent Ravera, Christian Schmid, Heike Soltau, Lothar Strüder, Christoph Tenzer, Jörn Wilms

Proceedings Volume 7742, 77420W (2010) https://doi.org/10.1117/12.857260

KEYWORDS: Sensors, X-rays, Spectroscopy, Silicon, Capacitance, Electrons, Electronics, Analog electronics, Amplifiers, Field effect transistors

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Proceedings Article | 12 July 2008 Paper

The Herschel-Heterodyne Instrument for the Far-Infrared (HIFI): instrument and pre-launch testing

7010-5Thijs de Graauw, Nick Whyborn, Frank Helmich, Pieter Dieleman, Peter Roelfsema, Emmanuel Caux, Tom Phillips, Jürgen Stutzki, Douwe Beintema, Arnold Benz, Nicolas Biver, Adwin Boogert, Francois Boulanger, Sergey Cherednichenko, Odile Coeur-Joly, Claudia Comito, Emmanuel Dartois, Albrecht de Jonge, Gert de Lange, Ian Delorme, Anna DiGiorgio, Luc Dubbeldam, Kevin Edwards, Michael Fich, Rolf Güsten, Fabrice Herpin, Netty Honingh, Robert Huisman, Herman Jacobs, Willem Jellema, Jon Kawamura, Do Kester, Teun Klapwijk, Thomas Klein, Jacob Kooi, Jean-Michel Krieg, Carsten Kramer, Bob Kruizenga, Wouter Laauwen, Bengt Larsson, Christian Leinz, Rene Liseau, Steve Lord, Willem Luinge, Anthony Marston, Harald Merkel, Rafael Moreno, Patrick Morris, Anthony Murphy, Albert Naber, Pere Planesas, Jesus Martin-Pintado, Micheal Olberg, Piotr Orleanski, Volker Ossenkopf, John Pearson, Michel Perault, Sabine Phillip, Mirek Rataj, Laurent Ravera, Paolo Saraceno, Rudolf Schieder, Frank Schmuelling, Ryszard Szczerba, Russell Shipman, David Teyssier, Charlotte Vastel, Huib Visser, Klaas Wildeman, Kees Wafelbakker, John Ward, Roonan Higgins, Henri Aarts, Xander Tielens, Peer Zaal

Proceedings Volume 7010, 701004 (2008) https://doi.org/10.1117/12.788659

KEYWORDS: Spectrometers, Astronomy, Acousto-optics, Switches, Stars, Oscillators, Calibration, Heterodyning, Spectral resolution, Signal processing

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Proceedings Article | 28 July 2000 Paper

Wideband high-resolution versatile spectrometer proposed for FIRST-HIFI

Laurent Ravera, Philippe Cais, Martin Giard, Alain Baudry, Dennis Lagrange, Guy Montignac, Jean Noullet, Emmanuel Caux, Alain Cros, J. Desbats, Jean Begueret, D. Navarro, N. Lavigne

Proceedings Volume 4013, (2000) https://doi.org/10.1117/12.393987

KEYWORDS: Spectroscopy, Optical correlators, Clocks, Prototyping, Gallium arsenide, Telescopes, Silicon, Diodes, Digital image correlation, Digital imaging

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Proceedings Article | 31 July 1998 Paper

Wideband digital autocorrelator for FIRST

Laurent Ravera, Martin Giard, Dennis Lagrange, Emmanuel Caux, Alain Cros, G. Serra, Jean Noullet, A. Ferreira, Philippe Cais, Alain Baudry, J. Desbat, A. Escobar, Guy Montignac, Marc Torres, J. Mayvial

Proceedings Volume 3357, (1998) https://doi.org/10.1117/12.317397

KEYWORDS: Spectroscopy, Gallium arsenide, Clocks, Prototyping, Optical correlators, Imaging spectroscopy, Telescopes, Logic, Space telescopes, Signal analyzers

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