A method for producing a laser guide star wavefront sensor for adaptive optics with reduced focal anisoplanatism is presented. A theoretical analysis and numerical simulations have been carried out and the results are presented. The technique, named SPLASH (Sky-Projected Laser Array Shack-Hartmann), is shown to suffer considerably less from focal anisoplanatism than a conventional laser guide star system. The method is potentially suitable for large telescope apertures (~8m), and possibly for extremely large telescopes.
@article{arxiv.astro-ph/0602238,
title = {A Shack-Hartmann wavefront sensor projected onto the sky with reduced focal anisoplanatism},
author = {T. Butterley and G. D. Love and R. W. Wilson and R. M. Myers and T. J. Morris},
journal= {arXiv preprint arXiv:astro-ph/0602238},
year = {2009}
}
Comments
8 pages, 5 figures, accepted for publication in MNRAS