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Proceedings Paper

MANU-CHAO: a laboratory ground-layer adaptive optics experiment
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Paper Abstract

We present a laboratory setup of a Ground-Layer Adaptive Optics system. This system is a scaled-down version of the MCAO system of MAD (a MCAO system for the VLT) / LINC-NIRVANA (a Fizeau Imager for the LBT) and measures the wavefront aberrations with 4 pyramids in a layer-oriented fashion with optical co-addition. The laboratory setup contains besides the wavefront-sensing unit a telescope-simulator, a dynamic turbulence generator and a Deformable Mirror for the wavefront correction. We describe the overall system and its single components, open- and closed-loop measurements of the characteristics of a system working in GLAO mode and first results when using a Kalman filter for the control of the wavefront reconstruction process.

Paper Details

Date Published: 28 June 2006
PDF: 12 pages
Proc. SPIE 6272, Advances in Adaptive Optics II, 62724X (28 June 2006); doi: 10.1117/12.671608
Show Author Affiliations
Sebastian E. Egner, Max-Planck-Institute for Astronomy (Germany)
Wolfgang Gaessler, Max-Planck-Institute for Astronomy (Germany)
Roberto Ragazzoni, INAF, Osservatorio Astrofisico di Padova (Italy)
Brice LeRoux, INAF, Osservatorio Astrofisico di Arcetri (Italy)
T. M. Herbst, Max Planck Institute for Astronomy (Germany)
J. Farinato, INAF, Osservatorio Astrofisico di Padova (Italy)
E. Diolaiti, INAF, Osservatorio Astrofisico di Bologna (Italy)
C. Arcidiacono, INAF, Osservatorio Astrofisico di Padova (Italy)

Published in SPIE Proceedings Vol. 6272:
Advances in Adaptive Optics II
Brent L. Ellerbroek; Domenico Bonaccini Calia, Editor(s)

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