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Proceedings Paper

Testing a nonmodulated pyramid wavefront sensor
Author(s): Joana Buechler Costa; Micaela Stumpf; Markus Feldt
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Paper Abstract

The use of a pyramid wavefront sensor without any kind of modulating device, dynamical or statical, is a tempting idea that is being considered in the actual design of some wavefront sensing systems. However, such a system has not yet been fully studied, as for the effect of static non-common path aberrations, which in an extreme case would leave the system working in a saturated regime. Here we analyze the performance of a sensor, with and without modulation, working under these conditions, with two approaches: In laboratory experiments with a pyramid wavefront sensor system working in open- and closed compensation and through numerical simulations.

Paper Details

Date Published: 25 October 2004
PDF: 11 pages
Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); doi: 10.1117/12.551772
Show Author Affiliations
Joana Buechler Costa, Max-Planck-Institut fur Astronomie (Germany)
Micaela Stumpf, Max-Planck-Institut fur Astronomie (Germany)
Markus Feldt, Max-Planck-Institut fur Astronomie (Germany)

Published in SPIE Proceedings Vol. 5490:
Advancements in Adaptive Optics
Domenico Bonaccini Calia; Brent L. Ellerbroek; Roberto Ragazzoni, Editor(s)

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