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Optical Engineering

Layer-oriented wavefront sensor for a multiconjugate adaptive optics demonstrator
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Paper Abstract

Diffraction limit imaging from the ground on a 2-arcmin field of view is about to be real with the demonstration of a new generation of multiconjugate adaptive optics, to be installed at Paranal in Chile in 2006. The layer-oriented part of the multiconjugate adaptive optics demonstrator (MAD) selects up to eight natural guide stars over the field of view, allowing a uniform correction. Using the layer-oriented concept and two deformable mirrors conjugated to the ground and 8.5 km, we determine multiconjugate adaptive optics (MCAO) performance on an 8-m-class telescope. We describe initially the optical constraints, the adopted solutions, and several optomechanical approaches used to build such a system. Alignment procedures are indicated with some useful details in the last section.

Paper Details

Date Published: 1 September 2005
PDF: 9 pages
Opt. Eng. 44(9) 096601 doi: 10.1117/1.2054567
Published in: Optical Engineering Volume 44, Issue 9
Show Author Affiliations
Elise Vernet-Viard, European Southern Observatory (Germany)
Carmelo Arcidiacono, Osservatorio Astrofisico di Arcetri (Italy)
Paolo Bagnara, Osservatorio Astronomico di Padova (Italy)
Andrea Baruffolo, Osservatorio Astronomico di Padova (Italy)
Emiliano Diolaiti, Osservatorio Astronomico di Bologna (Italy)
Jacopo Farinato, Osservatorio Astrofisico di Arcetri (Italy)
Matteo Lombini, Osservatorio Astrofisico di Arcetri (Italy)
Roberto Ragazzoni, Osservatorio Astrofisico di Arcetri (Italy)

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