Sky-projected Shack-Hartmann laser guide star

Timothy Butterley; David F. Buscher; Gordon D. Love; Tim J. Morris; Richard M. Myers; Richard W. Wilson

doi:10.1117/12.551142

25 October 2004 Sky-projected Shack-Hartmann laser guide star

Timothy Butterley, David F. Buscher, Gordon D. Love, Tim J. Morris, Richard M. Myers, Richard W. Wilson

Proceedings Volume 5490, Advancements in Adaptive Optics; (2004) https://doi.org/10.1117/12.551142
Event: SPIE Astronomical Telescopes + Instrumentation, 2004, Glasgow, United Kingdom

Abstract

We describe SPLASH (Sky Projected Laser Array Shack-Hartmann) which is a method of laser guide star (LGS) wavefront sensing with reduced focal anisoplanatism (FA). We present the results of a semi-theoretical analysis and a semi-geometrical simulation of SPLASH, allowing a direct comparison between SPLASH and a conventional laser guide star system. We show that SPLASH is significantly less susceptible to focal anisoplanatism than a conventional LGS.

Citation Download Citation

Timothy Butterley, David F. Buscher, Gordon D. Love, Tim J. Morris, Richard M. Myers, and Richard W. Wilson "Sky-projected Shack-Hartmann laser guide star", Proc. SPIE 5490, Advancements in Adaptive Optics, (25 October 2004); https://doi.org/10.1117/12.551142

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