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Comptes Rendus Physique
Volume 6, n° 10
pages 1081-1088 (décembre 2005)
Doi : 10.1016/j.crhy.2005.12.007
Multi-Conjugate Adaptive Optics for ELTs: constraints and limitations
Optique adaptative multi-conjuguée pour les télescopes extrêmement grands (ELTs) : contraintes et limitations
 

Roberto Ragazzoni , Brice Le Roux , Carmelo Arcidiacono
Osservatorio astrofisico di Arcetri, Largo Fermi, 5, 50125 Firenze, Italy 

Corresponding author.
Abstract

We present how enlarging the size of a telescope from the current 10 meter telescope to the future 100 meter Extremely Large Telescopes increases the complexity of a classical or multiconjugate adaptive optics instrument. We point out elements or parameters of the system for which it is critical to propose new ideas as solutions and we study the effect of the increase of the diameter on the point spread function of an MCAO and a Ground Layer AO system. To cite this article: R. Ragazzoni et al., C. R. Physique 6 (2005).

The full text of this article is available in PDF format.
Résumé

Nous discutons lʼeffet sur la complexité des systèmes dʼoptique adaptative, classique ou multi-conjuguée, du passage des télescopes actuels, de 10 mètres de diamètre, aux futurs ELTs pouvant atteindre 100 mètres de diamètre. Nous mettons en évidence certains élements et paramètres cruciaux qui imposent dʼavoir recours à de nouveaux concepts et empêchent une simple mise à lʼéchelle des systèmes existants. Nous étudions finalement lʼeffet de lʼaugmentation de diamètre du télescope sur la densité spectrale de puissance du système, en distinguant les cas de lʼoptique adaptative « couche au sol » et multiconjuguée. Pour citer cet article : R. Ragazzoni et al., C. R. Physique 6 (2005).

The full text of this article is available in PDF format.

Keywords : Multiconjugate adaptive optics, Extremely Large Telescopes

Mots-clés : Optique adaptative multi-conjuguée, Télescopes extrêmement grands




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