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Proceedings Paper

Testing the analytical model of the pyramid wavefront sensor with high-order aberrations on the optical bench
Author(s): Matthias Rosensteiner; Jean-Pierre Véran
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Paper Abstract

The pyramid wavefront sensor (PWFS) is generally considered a better alternative to the widely used Shack-Hartmann wavefront sensor (SHWFS), due to the theoretically higher sensibility and increased resistance to aliasing. These properties, which stem from the duality of the PWFS as a slope/phase sensor, are very desirable, since they can lead to increased performance and higher sky coverage in AO systems. We have tried to verify these properties experimentally by using a 32×32 MEMS deformable mirror to create Fourier modes, which were presented to a prototype PWFS.

Paper Details

Date Published: 21 July 2014
PDF: 7 pages
Proc. SPIE 9148, Adaptive Optics Systems IV, 914853 (21 July 2014); doi: 10.1117/12.2056895
Show Author Affiliations
Matthias Rosensteiner, NRC - Herzburg Institute of Astrophysics (Canada)
Jean-Pierre Véran, NRC - Herzburg Institute of Astrophysics (Canada)

Published in SPIE Proceedings Vol. 9148:
Adaptive Optics Systems IV
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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