Optimizing wavefront sensing for extreme AO

Details Optimizing wavefront sensing for extreme AO Optimizing wavefront sensing for extreme AO

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5490..586k&link_type=abstract

Advancements in Adaptive Optics. Edited by Domenico B. Calia, Brent L. Ellerbroek, and Roberto Ragazzoni. Proceedings of the SPI

Physics

Optics

1

Scientific paper

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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