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11 September 1998 ALFA: the MPIA/MPE adaptive optics with a laser for astronomy project
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Abstract
The Max-Planck-Institutes for Astronomy and for Extraterrestrial Physics (MPE) have recently installed a laser guide star (LGS) adaptive optics (AO) system at the 3.5m telescope on Calar Alto in Spain. The AO system consists of a Shack-Hartmann sensor, a deformable mirror with 97 actuators, and a wave-front processor that allows closed loop operations of up to 1200 Hz. As a first step we closed the high order AO loop on bright natural guide stars. As a second step we closed the AO loop ALFA's design, operation, and upgrade plans.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Stefan Hippler, Andreas Glindemann, Markus E. Kasper, Paul R. Kalas, Ralf-Rainer Rohloff, Karl Wagner, Douglas P. Looze, and Wolfgang K. P. Hackenberg "ALFA: the MPIA/MPE adaptive optics with a laser for astronomy project", Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); doi: 10.1117/12.321708; https://doi.org/10.1117/12.321708
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