2020•Unpublished venueRequires access
First results of laboratory tests of a three-sided pyramid wavefront sensor
Lauren Schatz, Jared R. Males, Johanan L. Codona, Weslin Pullen, Michael Hart, Jennifer Lumbres, Benoît Neichel, Carlos Correia, Thierry Fusco, Vincent Chambouleyron, Pierre Janin-Poitron, Kyle Van Gorkom, Mala Mateen, Joseph D. Long, Chris Bohlman, Olivier Favarque
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Abstract
Within the next decade the Extremely Large Telescopes [ELTs] with diameters up to 40m will see first light. To optimize a high contrast pyramid wavefront sensor for an ELT extreme adaptive optics system, we are developing the theoretical framework of a three-sided pyramid wavefront sensor (3PWFS). The 3PWFS should have a higher photon efficiency and therefore be more sensitive to wavefront aberrations than the traditional four-sided pyramid wavefront sensor (4PWFS) in the presence of noise. In this paper we present results from end-to-end simulations, and from test benches at the Laboratoire d’Astrophysique de Marseille, and the University of Arizona.