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