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Extremely fast focal-plane wavefront sensing for extreme adaptive optics

Keller, Christoph U; Korkiakoski, Visa; Doelman, Niek; Fraanje, Rufus; Andrei, Raluca M; Verhaegen, Michel


We present a promising approach to the extremely fast sensing and correction of small wavefront errors in adaptive optics systems. As our algorithm's computational complexity is roughly proportional to the number of actuators, it is particularly suitable to systems with 10,000 to 100,000 actuators. Our approach is based on sequential phase diversity and simple relations between the point-spread function and the wavefront error in the case of small aberrations. The particular choice of phase...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Conference paper
Source: Proceedings of SPIE - The International Society for Optical Engineering
DOI: 10.1117/12.926725
Access Rights: Open Access


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