Adaptive optics for the SALT

Details Adaptive optics for the SALT Adaptive optics for the SALT

Jul 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008spie.7015e.168k&link_type=abstract

Adaptive Optics Systems. Edited by Hubin, Norbert; Max, Claire E.; Wizinowich, Peter L. Proceedings of the SPIE, Volume 7015

Physics

Optics

Scientific paper

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.

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