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Proceedings Paper

ELPOA: data processing of chromatic differences of the tilt measured with a polychromatic laser guide star
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Paper Abstract

In this paper we present an experiment for measuring the chromatic differences of the tilt used for polychromatic laser guide star, a suitable solution to overcome the monochromatic laser guide star limitation: the tilt indetermination. A comparative study between two types of data processing is done: the classical estimation of angle of arrival by the image center of gravity, and a new one: an estimation of tilts by fitting a phase map in the polychromatic case. From these studies, expected precision is derived and comparison between simulations and data is done.

Paper Details

Date Published: 7 July 2000
PDF: 8 pages
Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000); doi: 10.1117/12.390341
Show Author Affiliations
Jerome Vaillant, Ctr. de Recherche Astronomique de Lyon (France)
Eric Thiebaut, Ctr. de Recherche Astronomique de Lyon (France)
Michel Tallon, Ctr. de Recherche Astronomique de Lyon (France)

Published in SPIE Proceedings Vol. 4007:
Adaptive Optical Systems Technology
Peter L. Wizinowich, Editor(s)

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