21 July 2014 CANARY phase B: on-sky open-loop tomographic LGS AO results
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CANARY is an on-sky Laser Guide Star (LGS) tomographic AO demonstrator that has been in operation at the 4.2m William Herschel Telescope (WHT) in La Palma since 2010. In 2013, CANARY was upgraded from its initial configuration that used three off-axis Natural Guide Stars (NGS) through the inclusion of four off-axis Rayleigh LGS and associated wavefront sensing system. Here we present the system and analysis of the on-sky results obtained at the WHT between May and September 2014. Finally we present results from the final ‘Phase C’ CANARY system that aims to recreate the tomographic configuration to emulate the expected tomographic AO configuration of both the AOF at the VLT and E-ELT.
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Tim Morris, Eric Gendron, Alastair Basden, Olivier Martin, James Osborn, David Henry, Zoltan Hubert, Gaetano Sivo, Damien Gratadour, Fanny Chemla, Arnaud Sevin, Matthieu Cohen, Eddy Younger, Fabrice Vidal, Richard Wilson, Tim Butterley, Urban Bitenc, Andrew Reeves, Nazim Bharmal, Henri-François Raynaud, Caroline Kulcsar, Jean-Marc Conan, Jean-Michel Huet, Denis Perret, Colin Dickson, David Atkinson, Tom Bailie, Andy Longmore, Stephen Todd, Gordon Talbot, Simon Morris, Gérard Rousset, Richard Myers, "CANARY phase B: on-sky open-loop tomographic LGS AO results", Proc. SPIE 9148, Adaptive Optics Systems IV, 91481I (21 July 2014); doi: 10.1117/12.2056279; https://doi.org/10.1117/12.2056279


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