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Proceedings Paper

Development of new concepts to minimize the impact of fast telescope vibrations seen by the E-ELT/MICADO wavefront sensors
Author(s): Alexander Keck; Jörg-Uwe Pott; Thomas Ruppel; Oliver Sawodny
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Paper Abstract

We present our recently started eort to realize feedforward vibration control loops with a full adaptive optics (AO) testbed in the laboratory. A piezo-driven tip-tilt mirror unit introduces an arbitrary, but controllable, vibration power-spectrum to simulate telescope mirror vibrations of any kind on the wavefront sensor. Our ultimate goal is to demonstrate in realistic laboratory tests, how telescope vibrations faster than atmospheric tip-tilt can be measured by accelerometers, and controlled in real-time feedforward to allow for longer and more sensitive wavefront sensor (WFS) integrations.

Paper Details

Date Published: 13 September 2012
PDF: 8 pages
Proc. SPIE 8447, Adaptive Optics Systems III, 84474W (13 September 2012); doi: 10.1117/12.927030
Show Author Affiliations
Alexander Keck, Univ. Stuttgart (Germany)
Jörg-Uwe Pott, Max-Planck-Institut für Astronomie (Germany)
Thomas Ruppel, Univ. Stuttgart (Germany)
Oliver Sawodny, Univ. Stuttgart (Germany)

Published in SPIE Proceedings Vol. 8447:
Adaptive Optics Systems III
Brent L. Ellerbroek; Enrico Marchetti; Jean-Pierre Véran, Editor(s)

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