Emulation of dual-conjugate adaptive optics on an 8-m class telescope
Knutsson, Per; Owner-Petersen, Mette (2003). Emulation of dual-conjugate adaptive optics on an 8-m class telescope. Optics Express, 11, (18), 2231 - 2237
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Published
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English
Authors:
Knutsson, Per
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Owner-Petersen, Mette
Department:
Lund Observatory - Has been reorganised
Abstract:
In this article we present a downscaled laboratory setup emulating five natural guide stars, a layered static atmosphere and a 7.5-m aperture telescope equipped with dual-conjugate adaptive optics at a wavelength of 2.2 mum. Three reconstruction alternatives were evaluated; conventional adaptive optics, field-averaged conventional adaptive optics and dual-conjugate adaptive optics. The results were compared with Zemax-simulations of the setup. The expected increase of the size of the isoplanatic patch, using dual-conjugate adaptive optics, was confirmed. (C) 2003 Optical Society of America.
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