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Proceedings Paper

Adaptive optics prototype system for infrared astronomy: I. System description
Author(s): Gerard Rousset; Jean-Claude Fontanella; Pierre Y. Kern; Pierre J. Lena; Pierre Gigan; Francois J. Rigaut; Jean-Paul Gaffard; Corinne Boyer; Pascal Jagourel; Fritz Merkle
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Paper Abstract

This paper is a presentation of the so-called COME-ON adaptive optics prototype system developed jointly by four European institutions. This system has been tested on the 1.52m telescope of the Observatoire de Haute Provence on October 12 to 23 and November 13 to 24, 1989. Diffraction-limited infrared imaging has been achieved during these first tests. The adaptive optics system consists of a 19 actuator deformable mirror and a Hartmann-Shack type wavefront sensor. In this instrument the wavefront sensing is performed at visible wavelengths while the correction is performed for near infrared imaging (1.2 to 5 rim). Specialized computers drive the deformable mirror and a tip-tilt mirror. The bandwidth of the servo-loop is 9 Hz at 0 dB point in open-loop. The results obtained with this instrument will be very useful for the design of the future adaptive optics system for the ESO Very Large Telescope (VLT).

Paper Details

Date Published: 1 August 1990
PDF: 9 pages
Proc. SPIE 1237, Amplitude and Intensity Spatial Interferometry, (1 August 1990); doi: 10.1117/12.19305
Show Author Affiliations
Gerard Rousset, Office National d'Etudes et de Recherches Aerospatiales (France)
Jean-Claude Fontanella, Office National d'Etudes et de Recherches Aerospatiales (France)
Pierre Y. Kern, Univ. de Paris 7 and Observatoire de Paris (France)
Pierre J. Lena, Univ. de Paris 7 and Observatoire de Paris (France)
Pierre Gigan, Univ. de Paris 7 and Observatoire de Paris (France)
Francois J. Rigaut, Univ. de Paris 7 and Observatoire de Paris (United States)
Jean-Paul Gaffard, Laserdot (France)
Corinne Boyer, Laserdot (United States)
Pascal Jagourel, Laserdot (France)
Fritz Merkle, European Southern Observatory (Germany)

Published in SPIE Proceedings Vol. 1237:
Amplitude and Intensity Spatial Interferometry
James B. Breckinridge, Editor(s)

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