Le Louarn, Miska (ESO), Madec, Pierre-Yves (ESO), Oberti, Sylvain (ESO), Paufique, Jerome (ESO), Sarazin, Marc (ESO), Stroebele, Stefan (ESO), Esselborn, Michael (ESO)
In this paper, we present the latest AO simulation results done at ESO in the context of the E-ELT. We present an analysis of a potential failure mode (a broken concentrator, which tilts a group of 7 segments). We look at the behavior of a cascaded AO system, where a low order system is fed into a high order AO system, in the context of PCS, the future planet finder system for the E-ELT. We then investigate what happens if we do not use modulation at all an infra-red pyramid sensor (in the framework of METIS). Finally, some very preliminary points are investigated about natural guide star sensing in a tomographic AO system.
10.26698/AO4ELT5.0119- Proceeding PDF