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

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

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000spie.4007..142c&link_type=abstract

Proc. SPIE Vol. 4007, p. 142-148, Adaptive Optical Systems Technology, Peter L. Wizinowich; Ed.

Physics

Optics

Scientific paper

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.).

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