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15 July 2008 Adaptive optics for the SALT
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Abstract
We present a cost-effective solution for adaptive optics (AO) correction on the Southern African Large Telescope (SALT), where each primary mirror segment has compensation for tip-tilt atmospheric errors and a slower, active optic loop for sensing piston and correcting for focus drift. By treating the telescope as 91 independent tip-tilt corrected units, we compute the encircled energy gains for different seeing conditions at the SALT. Finally, the optical design for a simple AO demonstrator camera is presented, using seven tip-tilt correctors to directly measure and compare closed loop and open loop performances, which will help lead a full SALT AO system design.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Matthew A. Kenworthy, Andrew Sheinis, and David A. H. Buckley "Adaptive optics for the SALT", Proc. SPIE 7015, Adaptive Optics Systems, 701563 (15 July 2008); https://doi.org/10.1117/12.789623
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