Sensing wavefronts on resolved sources with pyramids on ELTs

Markus Feldt; Stefan Hippler; Andreas Obereder; Remko Stuik; Thomas Bertram

doi:10.1117/12.2232601

27 July 2016 Sensing wavefronts on resolved sources with pyramids on ELTs

Markus Feldt, Stefan Hippler, Andreas Obereder, Remko Stuik, Thomas Bertram

Proceedings Volume 9909, Adaptive Optics Systems V; 990961 (2016) https://doi.org/10.1117/12.2232601
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Pyramid wavefront sensors (PWFS) have been agreed to provide a superior faint-end performance with respect to Shack-Hartmann systems (SHS) quite some time ago. However, much of the advantage relies on the fact that PWFSs exploit the full resolution limit of the telescope. ELTs will thus confront PWFSs with an unprecedented number of resolved targets. To analyze the behavior of PWFS on extended targets in detail observationally is difficult. We will present the result of simulations representing the Single-Conjugated Adaptive Optics (SCAO) system of METIS on the European ELT (E-ELT).

Citation Download Citation

Markus Feldt, Stefan Hippler, Andreas Obereder, Remko Stuik, and Thomas Bertram "Sensing wavefronts on resolved sources with pyramids on ELTs", Proc. SPIE 9909, Adaptive Optics Systems V, 990961 (27 July 2016); https://doi.org/10.1117/12.2232601

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