ALFA: the MPIA/MPE adaptive optics with a laser for astronomy project

Stefan Hippler; Andreas Glindemann; Markus E. Kasper; Paul R. Kalas; Ralf-Rainer Rohloff; Karl Wagner; Douglas P. Looze; Wolfgang K. P. Hackenberg

doi:10.1117/12.321708

11 September 1998 ALFA: the MPIA/MPE adaptive optics with a laser for astronomy project

Stefan Hippler, Andreas Glindemann, Markus E. Kasper, Paul R. Kalas, Ralf-Rainer Rohloff, Karl Wagner, Douglas P. Looze, Wolfgang K. P. Hackenberg

Author Affiliations +

Proceedings Volume 3353, Adaptive Optical System Technologies; (1998) https://doi.org/10.1117/12.321708
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

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.

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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); https://doi.org/10.1117/12.321708

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