MAD: practical implementation of MCAO concepts

Details MAD: practical implementation of MCAO concepts MAD: practical implementation of MCAO concepts

Dec 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005crphy...6.1118m&link_type=abstract

Comptes Rendus - Physique, Volume 6, Issue 10, p. 1118-1128.

Physics

Optics

2

Multi-Conjugate Adaptive Optics, Wavefront Sensors, Layer Oriented, Ground Layer Adaptive Optics, Optique Adaptative Multi-Conjugée, Senseurs De Front D'Onde

Scientific paper

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).

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