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Closed-loop control of a woofer-tweeter adaptive optics system using wavelet-based phase reconstruction

Hampton, Peter J; Agathoklis, Pan; Conan, Rodolphe; Bradley, Colin


A novel closed-loop control technique for adaptive optics (AO) systems based on a wavelet-based phase reconstruction technique and a woofer-tweeter controller is presented. The wavelet-based reconstruction technique is based on obtaining a Haar decomposition of the phase screen directly from gradient measurements and has been extended here with the use of a Poisson solver to improve performance. This method is O(N) (i.e., a linear computation cost as number of actuators increases) and is the...[Show more]

CollectionsANU Research Publications
Date published: 2010-11-01
Type: Journal article
Source: Journal of the Optical Society of America. A, Optics, image science, and vision
DOI: 10.1364/JOSAA.27.00A145


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