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Proceedings Paper

ASSIST: development of a test-infrastructure for the VLT AO facility
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Paper Abstract

ASSIST - The Adaptive Secondary Setup and Instrument STimulator is a test setup to verify the operation of three elements of the VLT Adaptive Optics Facility, namely the Deformable Secondary Mirror (DSM) and the two AO systems using this DSM, the AO system for the visible light integral field spectrograph MUSE (GALACSI) and the AO system for the IR wide field imager HAWK-I (GRAAL). To support the testing of these elements, ASSIST will provide both an interferometry setup for testing the DSM as well as a full atmospheric turbulence simulator and star simulator to mimic the conditions at the telescope. To test the instruments using the DSM, the output beam is matched the output beam of the VLT telescope, including the correct exit-pupil and high-quality imaging and a similar hardware interface is provided. Since one of the modes to be verified is nearly diffraction limited, also the thermal and vibrational stability are very important, with strong constraints on both the mechanical as well as the optical design.

Paper Details

Date Published: 18 September 2007
PDF: 9 pages
Proc. SPIE 6691, Astronomical Adaptive Optics Systems and Applications III, 669104 (18 September 2007); doi: 10.1117/12.736157
Show Author Affiliations
Remko Stuik, Leiden Univ. (Netherlands)
Robin Arsenault, ESO (Germany)
Atul Deep, Leiden Univ. (Netherlands)
Bernard Delabre, ESO (Germany)
Pascal Hallibert, Leiden Univ. (Netherlands)
Laurent Jolissaint, Leiden Univ. (Netherlands)
Norbert Hubin, ESO (Germany)
Sarah Kendrew, Leiden Univ. (Netherlands)
Pierre-Yves Madec, ESO (Germany)
Jerome Paufique, ESO (Germany)
Stefan Stroebele, ESO (Germany)

Published in SPIE Proceedings Vol. 6691:
Astronomical Adaptive Optics Systems and Applications III
Robert K. Tyson; Michael Lloyd-Hart, Editor(s)

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