Curvature-based laser guide star adaptive optics system for Gemini South

Mark Richard Chun; Celine D'Orgeville; Brent L. Ellerbroek; J. Elon Graves; Malcolm J. Northcott; Francois J. Rigaut

doi:10.1117/12.390399

7 July 2000 Curvature-based laser guide star adaptive optics system for Gemini South

Mark Richard Chun, Celine D'Orgeville, Brent L. Ellerbroek, J. Elon Graves, Malcolm J. Northcott, Francois J. Rigaut

Proceedings Volume 4007, Adaptive Optical Systems Technology; (2000) https://doi.org/10.1117/12.390399
Event: Astronomical Telescopes and Instrumentation, 2000, Munich, Germany

Abstract

The Gemini Observatory and University of Hawaii are planning to install an 85-element curvature adaptive optics system with a laser guide star system on its Cerro Pachon telescope in 2001. This paper discusses the motivation, issues on implementing a laser guide star with a curvature-based system, the implementation of a laser guide star based on a commercially available 2W ring-dye laser, and the expected performance of the system. Detailed simulations show very promising results for system performance down to natural guide star magnitudes of 19 - 20th magnitude. The performance cross- over point between NGS and LGS is between 13 - 16th magnitude depending on the performance parameter of interest (e.g. Strehl, energy through a slit, etc.).

Citation Download Citation

Mark Richard Chun, Celine D'Orgeville, Brent L. Ellerbroek, J. Elon Graves, Malcolm J. Northcott, and Francois J. Rigaut "Curvature-based laser guide star adaptive optics system for Gemini South", Proc. SPIE 4007, Adaptive Optical Systems Technology, (7 July 2000); https://doi.org/10.1117/12.390399

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