1. MAD: practical implementation of MCAO concepts
- Author
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Jacopo Farinato, Andrea Baruffolo, Carmelo Arcidiacono, Joana Santos, Bernard Delabre, R. Brast, E. Vernet, Enrico Marchetti, Roberto Ragazzoni, Matteo Lombini, Johann Kolb, Christoph Frank, Enrico Fedrigo, Jean-Louis Lizon, Emiliano Diolaiti, Paolo Bagnara, Sebastien Tordo, Miska Le Louarn, Roland Reiss, Fernando Quiros-Pacheco, Rob Donaldson, Norbert Hubin, and Sylvain Oberti
- Subjects
Wavefront ,Physics ,Very Large Telescope ,business.industry ,General Engineering ,Ground layer ,Energy Engineering and Power Technology ,Deformable mirror ,Overwhelmingly Large Telescope ,Optics ,Observatory ,Instrumentation (computer programming) ,business ,Adaptive optics ,Computer hardware - Abstract
The European Southern Observatory (ESO) together with external research institutes have built a Multi-Conjugate Adaptive Optics (MCAO) Demonstrator (MAD) to perform wide field-of-view adaptive optics correction (2′ in K band). The aim of MAD is to demonstrate the on-sky feasibility of the MCAO technique and to evaluate its critical aspects in the framework of both the 2nd generation instrumentation for the Very Large Telescope (VLT) and the Overwhelmingly Large Telescope (OWL). The MAD module will be installed on the VLT to perform on-sky observations. MAD comprises two deformable mirrors and two different multi-reference wavefront sensors with natural guide stars. In this article we present the MAD design, some aspects of the MAD calibration and the first closed-loop results in the laboratory in Single Conjugated Adaptive Optics (SCAO) and Ground Layer Adaptive Optics (GLAO) configurations. To cite this article: E. Marchetti et al., C. R. Physique 6 (2005).
- Published
- 2005
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