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Proceedings Paper

Efficiency of deformable and segmented mirrors for correction of turbulence-induced wavefront distortions
Author(s): Vladimir P. Lukin; Boris V. Fortes; Feodor Yu. Kanev
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Paper Abstract

The point spread function (PSF) for a ground-based telescope is calculated for two types of wave front correctors, i.e., deformable and segmented mirrors. The deformable mirror is assumed to be a thin square plate fixed at its center and deformed within a system of lateral forces applied to 20 points. The segmented corrector is a set of square segments with three degrees of freedom, the number of elements varies from 1 to 16. The wavefront distortions are of the Kolmogorov spectrum and are considered to be known for each random realization. It is shown that the PSF calculated for a 9 element segmented corrector (27 degrees of freedom) is close to that obtained for the deformable mirror with 20 degrees of freedom.

Paper Details

Date Published: 31 May 1994
PDF: 6 pages
Proc. SPIE 2201, Adaptive Optics in Astronomy, (31 May 1994); doi: 10.1117/12.176027
Show Author Affiliations
Vladimir P. Lukin, Institute of Atmospheric Optics (Russia)
Boris V. Fortes, Institute of Atmospheric Optics (Russia)
Feodor Yu. Kanev, Institute of Atmospheric Optics (Russia)

Published in SPIE Proceedings Vol. 2201:
Adaptive Optics in Astronomy
Mark A. Ealey; Fritz Merkle, Editor(s)

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