Publications of the MPIfR Optical & Infrared Interferometry Group

Egner, Sebastian E.; Gaessler, Wolfgang; Herbst, Tom M.; Ragazzoni, Roberto; Stuik, Remko; Andersen, D. A.; Arcidiacono, C.; Baumeister, H.; Beckmann, U.; Behrend, J.; Bertram, T.; Bizenberger, P.; Boehnhardt, H.; Diolaiti, E.; Driebe, T.; Eckhardt, A.; Farinato, J.; Kuerster, M.; Laun, W.; Ligori, S.; Naranjo, Vianak; Nußbaum, E.; Rix, H.-W.; Rohloff, R.-R.; Salinari, Piero; Soci, R.; Straubmeier, C.; Vernet-Viard, E.; Weigelt, Gerd P.; Weiss, R.; Xu, W.

LINC-NIRVANA: the single arm MCAO experiment

Advancements in Adaptive Optics Proceedings of SPIE Volume 5490.
Edited by Domenico Bonaccini Calia, Brent L. Ellerbroek, Roberto Ragazzoni,: The International Society for Optical Engineering, 2004., p.924-933

Abstract
LINC-NIRVANA is an imaging interferometer for the Large Binocular Telescope (LBT) and will make use of multi-conjugated adaptive optics (MCAO) with two 349 actuators deformable mirrors (DM), two 672 actuator deformable secondary mirrors and a total of 4 wavefront sensors (WFS) by using 8 or 12 natural guide stars each. The goal of the MCAO is to increase sky coverage and achieve a medium Strehl-ratio over the 2 arcmin field of view. To test the concepts and prototypes, a laboratory setup of one MCAO arm is being built. We present the layout of the MCAO prototype, planned and accomplished tests, especially for the used Xinetics DMs, and a possible setup for a test on sky with an existing 8m class telescope.

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