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.
Nous discutons l'effet sur la complexité des systèmes d'optique 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 d'avoir recours à de nouveaux concepts et empêchent une simple mise à l'échelle des systèmes existants. Nous étudions finalement l'effet de l'augmentation de diamètre du télescope sur la densité spectrale de puissance du système, en distinguant les cas de l'optique adaptative « couche au sol » et multiconjuguée.
Mots-clés : Optique adaptative multi-conjuguée, Télescopes extrêmement grands
Roberto Ragazzoni 1; Brice Le Roux 1; Carmelo Arcidiacono 1
@article{CRPHYS_2005__6_10_1081_0,
author = {Roberto Ragazzoni and Brice Le Roux and Carmelo Arcidiacono},
title = {Multi-Conjugate {Adaptive} {Optics} for {ELTs:} constraints and limitations},
journal = {Comptes Rendus. Physique},
pages = {1081--1088},
publisher = {Elsevier},
volume = {6},
number = {10},
year = {2005},
doi = {10.1016/j.crhy.2005.12.007},
language = {en},
}
TY - JOUR AU - Roberto Ragazzoni AU - Brice Le Roux AU - Carmelo Arcidiacono TI - Multi-Conjugate Adaptive Optics for ELTs: constraints and limitations JO - Comptes Rendus. Physique PY - 2005 SP - 1081 EP - 1088 VL - 6 IS - 10 PB - Elsevier DO - 10.1016/j.crhy.2005.12.007 LA - en ID - CRPHYS_2005__6_10_1081_0 ER -
Roberto Ragazzoni; Brice Le Roux; Carmelo Arcidiacono. Multi-Conjugate Adaptive Optics for ELTs: constraints and limitations. Comptes Rendus. Physique, Multi-Conjugate Adaptive Optics for very large telescopes, Volume 6 (2005) no. 10, pp. 1081-1088. doi : 10.1016/j.crhy.2005.12.007. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2005.12.007/
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