A Shack–Hartmann wavefront sensor projected on to the sky with reduced focal anisoplanatism

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 Sky-Projected Laser Array Shack–Hartmann (SPLASH),...

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Bibliographic Details
Published in:Monthly notices of the Royal Astronomical Society 2006-05, Vol.368 (2), p.837-843
Main Authors: Butterley, T., Love, G. D., Wilson, R. W., Myers, R. M., Morris, T. J.
Format: Article
Language:English
Subjects:
Astronomy
Earth, ocean, space
Exact sciences and technology
instrumentation: adaptive optics
Lasers
Mathematical models
Simulation
Stars & galaxies
Telescopes
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Summary: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 Sky-Projected Laser Array Shack–Hartmann (SPLASH), 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 (∼8 m), and possibly for extremely large telescopes.
ISSN:0035-8711
1365-2966
DOI:10.1111/j.1365-2966.2006.10160.x