Optimizing wavefront sensing for extreme AO

Rainer Koehler; Stefan Hippler; Markus Feldt; Raffaele Gratton; Daniel Gisler; Remko Stuik; Jorge Lima

doi:10.1117/12.550314

25 October 2004 Optimizing wavefront sensing for extreme AO

Rainer Koehler, Stefan Hippler, Markus Feldt, Raffaele Gratton, Daniel Gisler, Remko Stuik, Jorge Lima

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.550314
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

Extreme adaptive optics (XAO) systems are highly specialized systems to achieve very high Strehl numbers on comparatively small fields of view, e.g. for high-contrast applications like planet finding. We present a study of an XAO system using a pyramid wavefront sensor on telescopes of 8m aperture diameter and above. We used standard (CAOS) and custom numerical simulation tools to examine the influence of the number of basis functions in a modal correction model, the control loop frequency of the XAO system, and atmospheric conditions.

Citation Download Citation

Rainer Koehler, Stefan Hippler, Markus Feldt, Raffaele Gratton, Daniel Gisler, Remko Stuik, and Jorge Lima "Optimizing wavefront sensing for extreme AO", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); https://doi.org/10.1117/12.550314

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