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Proceedings Paper

Design of the extreme AO system for SPHERE, the planet finder instrument of the VLT
Author(s): T. Fusco; C. Petit; G. Rousset; J.-F. Sauvage; K. Dohlen; D. Mouillet; J. Charton; P. Baudoz; M. Kasper; E. Fedrigo; P. Rabou; P. Feautrier; M. Downing; P. Gigan; J.-M. Conan; J.-L. Beuzit; N. Hubin; F. Wildi; P. Puget
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Paper Abstract

The SPHERE system aims at the detection of extremely faint sources (giant extra-solar planet) in the vinicity of bright stars. Such a challenging goal automatically requires the use of a coronagraphic device to cancel out the flux coming from the star and smart imaging technics which have to be added to reach the required contrast for exo-planet detection (typically 10-6 - 10-7 in contrast). In this frame of the SPHERE project a global system study has demonstrated the feasibility of an AO system for the direct exoplanets detection. A detailed description of this system is proposed in this paper. The main trade-offs are discussed and justified and all the subsystems briefly presented. The realization phase has begun in 2006 and we foresee to obtain a first light at the VLT in 2010.

Paper Details

Date Published: 27 June 2006
PDF: 11 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62720K (27 June 2006); doi: 10.1117/12.670794
Show Author Affiliations
T. Fusco, ONERA (France)
C. Petit, ONERA (France)
G. Rousset, LESIA, Observatoire de Paris (France)
ONERA (France)
J.-F. Sauvage, ONERA (France)
K. Dohlen, LAM, Observatoire de Marseille (France)
D. Mouillet, LAOG, Observatoire de Grenoble (France)
J. Charton, LAOG, Observatoire de Grenoble (France)
P. Baudoz, LESIA, Observatoire de Paris (France)
M. Kasper, ESO (Germany)
E. Fedrigo, ESO (Germany)
P. Rabou, LAOG, Observatoire de Grenoble (France)
P. Feautrier, LAOG, Observatoire de Grenoble (France)
M. Downing, ESO (Germany)
P. Gigan, LESIA, Observatoire de Paris (France)
J.-M. Conan, ONERA (France)
J.-L. Beuzit, LAOG, Observatoire de Grenoble (France)
N. Hubin, ESO (Germany)
F. Wildi, HES-SO (Switzerland)
P. Puget, LESIA, Observatoire de Paris (France)


Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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