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Proceedings Paper

Final two-stage MOAO on-sky demonstration with CANARY
Author(s): E. Gendron; T. Morris; A. Basden; F. Vidal; D. Atkinson; U. Bitenc; T. Buey; F. Chemla; M. Cohen; C. Dickson; N. Dipper; P. Feautrier; J.-L. Gach; D. Gratadour; D. Henry; J.-M. Huet; C. Morel; S. Morris; R. Myers; J. Osborn; D. Perret; A. Reeves; G. Rousset; A. Sevin; E. Stadler; G. Talbot; S. Todd; E. Younger
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Paper Abstract

CANARY is an on-sky Laser Guide Star (LGS) tomographic AO demonstrator in operation at the 4.2m William Herschel Telescope (WHT) in La Palma. From the early demonstration of open-loop tomography on a single deformable mirror using natural guide stars in 2010, CANARY has been progressively upgraded each year to reach its final goal in July 2015. It is now a two-stage system that mimics the future E-ELT: a GLAO-driven woofer based on 4 laser guide stars delivers a ground-layer compensated field to a figure sensor locked tweeter DM, that achieves the final on-axis tomographic compensation. We present the overall system, the control strategy and an overview of its on-sky performance.

Paper Details

Date Published: 26 July 2016
PDF: 17 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 99090C (26 July 2016); doi: 10.1117/12.2231432
Show Author Affiliations
E. Gendron, LESIA, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
T. Morris, Durham Univ. (United Kingdom)
A. Basden, Durham Univ. (United Kingdom)
F. Vidal, LESIA, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
D. Atkinson, Royal Observatory Edinburgh (United Kingdom)
U. Bitenc, Durham Univ. (United Kingdom)
T. Buey, LESIA, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
F. Chemla, GEPI, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
M. Cohen, GEPI, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
C. Dickson, Royal Observatory Edinburgh (United Kingdom)
N. Dipper, Durham Univ. (United Kingdom)
P. Feautrier, Institut de Planétologie et d’Astrophysique de Grenoble (France)
First Light Imaging S.A.S. (France)
J.-L. Gach, First Light Imaging S.A.S. (France)
Aix Marseille Univ., CNRS, LAM (France)
D. Gratadour, LESIA, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
D. Henry, Royal Observatory Edinburgh (United Kingdom)
J.-M. Huet, GEPI, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
C. Morel, LESIA, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
S. Morris, Durham Univ. (United Kingdom)
R. Myers, Durham Univ. (United Kingdom)
J. Osborn, Durham Univ. (United Kingdom)
D. Perret, LESIA, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
A. Reeves, Durham Univ. (United Kingdom)
G. Rousset, LESIA, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
A. Sevin, LESIA, Observatoire de Paris, CNRS, UPMC, Univ. Paris Diderot (France)
E. Stadler, Institut de Planétologie et d’Astrophysique de Grenoble (France)
First Light Imaging S.A.S. (France)
G. Talbot, Durham Univ. (United Kingdom)
S. Todd, Royal Observatory Edinburgh (United Kingdom)
E. Younger, Durham Univ. (United Kingdom)


Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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