Final two-stage MOAO on-sky demonstration with CANARY

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

doi:10.1117/12.2231432

26 July 2016 Final two-stage MOAO on-sky demonstration with CANARY

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

Author Affiliations +

Proceedings Volume 9909, Adaptive Optics Systems V; 99090C (2016) https://doi.org/10.1117/12.2231432
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

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.

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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, and E. Younger "Final two-stage MOAO on-sky demonstration with CANARY", Proc. SPIE 9909, Adaptive Optics Systems V, 99090C (26 July 2016); https://doi.org/10.1117/12.2231432

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