Simulations of extreme AO: a comparison between Shack-Hartmann and pyramid-based systems

Details Simulations of extreme AO: a comparison between Shack-Hartmann and pyramid-based systems Simulations of extreme AO: a comparison between Shack-Hartmann and pyramid-based systems

Oct 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004spie.5490.1177v&link_type=abstract

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

Physics

Optics

2

Scientific paper

End-to-End simulations of high strehl Adaptive Optics systems based on Shack-Hartmann and Pyramid wave-front sensors are presented. We limit our study to high temporal bandwidth, in order to focus on the problem of aliasing and detection noise propagation. In particular the effect of spatial filtering is investigated. Some particular features concerning both sensors are highlighted. We analyze the results in terms of residual phase power spectrum.

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