26 July 2016 Final two-stage MOAO on-sky demonstration with CANARY
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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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
E. Gendron, E. Gendron, T. Morris, T. Morris, A. Basden, A. Basden, F. Vidal, F. Vidal, D. Atkinson, D. Atkinson, U. Bitenc, U. Bitenc, T. Buey, T. Buey, F. Chemla, F. Chemla, M. Cohen, M. Cohen, C. Dickson, C. Dickson, N. Dipper, N. Dipper, P. Feautrier, P. Feautrier, J.-L. Gach, J.-L. Gach, D. Gratadour, D. Gratadour, D. Henry, D. Henry, J.-M. Huet, J.-M. Huet, C. Morel, C. Morel, S. Morris, S. Morris, R. Myers, R. Myers, J. Osborn, J. Osborn, D. Perret, D. Perret, A. Reeves, A. Reeves, G. Rousset, G. Rousset, A. Sevin, A. Sevin, E. Stadler, E. Stadler, G. Talbot, G. Talbot, S. Todd, S. Todd, E. Younger, E. Younger, "Final two-stage MOAO on-sky demonstration with CANARY", Proc. SPIE 9909, Adaptive Optics Systems V, 99090C (26 July 2016); doi: 10.1117/12.2231432; https://doi.org/10.1117/12.2231432


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