The paper describes the basic concepts underlying the design of Multi-Conjugate Adaptive Optics systems. The paper takes into account mainly three papers. The first paper, published in 1988, is due to J. Beckers and it introduces the currently used multi-conjugation concept and quantifies the increase in FoV achieved applying this concept with respect to the single conjugate adaptive system. The second paper considered is due to M. Tallon and R. Foy. This paper, published in 1990, provides a quantitative method to estimate the 3D map of the atmospheric phase perturbation. This is the needed information to properly control the multi-conjugate system introduced by J. Beckers. Finally a third paper, published in 2000 and due to R. Ragazzoni et al. is considered, where the Layer Oriented scheme is described opening the multi-conjugate adaptive system field to natural guide stars. These three papers stimulated a lot of other contributions from several people and some of them are briefly discussed in the paper.
Cet article présente les notions de base qui gouvernent le dimensionnement des systèmes d'optique adaptative multi-conjuguée [OAMC]. La synthèse présentée ici reprend principalement les résultats de trois articles. Le premier, publié en 1988 par J. Beckers, introduit le concept de multi-conjugaison and évalue le gain attendu en champ de vue par rapport à l'optique adaptative classique. Le deuxième article fondateur est celui de M. Tallon and R. Foy. Ce travail, publié en 1990, propose une méthode pour estimer quantitativement la carte 3D des perturbations de phase atmosphériques. Cette information est essentielle pour commander les systèmes multi-conjugués introduits par J. Beckers. Un troisième article majeur, publié en 2000 par R. Ragazzoni et al., décrit le principe de l'analyse de front d'onde dite « Layer Oriented ». Cette technique permet d'ouvrir le domaine de l'OAMC vers l'utilisation d'étoiles naturelles pour l'analyse de front d'onde. Ces trois articles ont bien sûr stimulé un grand nombre d'autres contributions émanant de divers instituts, l'essentiel de ces travaux est discuté dans le texte qui suit.
@article{CRPHYS_2005__6_10_1039_0,
author = {Simone Esposito},
title = {Introduction to {Multi-Conjugate} {Adaptive} {Optics} systems},
journal = {Comptes Rendus. Physique},
pages = {1039--1048},
publisher = {Elsevier},
volume = {6},
number = {10},
year = {2005},
doi = {10.1016/j.crhy.2005.11.016},
language = {en},
}
Simone Esposito. Introduction to Multi-Conjugate Adaptive Optics systems. Comptes Rendus. Physique, Multi-Conjugate Adaptive Optics for very large telescopes, Volume 6 (2005) no. 10, pp. 1039-1048. doi : 10.1016/j.crhy.2005.11.016. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2005.11.016/
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