Fourier transform-wavefront reconstruction for the pyramid wavefront sensor

F. Quirós-Pacheco; C. Correia; S. Esposito

doi:10.1051/ao4elt/201007005

Open Access

Issue		2010


Article Number		07005
Number of page(s)		6
Section		Real-time control
DOI		https://doi.org/10.1051/ao4elt/201007005
Published online		24 February 2010

1st AO4ELT conference, 07005 (2010)

Fourier transform-wavefront reconstruction for the pyramid wavefront sensor

F. Quirós-Pacheco¹^a, C. Correia² and S. Esposito¹

¹ INAF - Osservatorio Astroﬁsico di Arcetri, Italy.
² ONERA, France.

^a e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

The application of Fourier-transform reconstruction techniques to the pyramid wavefront sensor has been investigated. A preliminary study based on end-to-end simulations of an adaptive optics system with ≈40x40 subapertures and actuators shows that the performance of the Fourier-transform reconstructor (FTR) is of the same order of magnitude than the one obtained with a conventional matrix-vector multiply (MVM) method.