Wavefront reconstruction methods for a natural guide star adaptive optics application to the Keck Telescope

Mark H. Milman; Laura Needels; David C. Redding

doi:10.1117/12.176037

31 May 1994 Wavefront reconstruction methods for a natural guide star adaptive optics application to the Keck Telescope

Mark H. Milman, Laura Needels, David C. Redding

Proceedings Volume 2201, Adaptive Optics in Astronomy; (1994) https://doi.org/10.1117/12.176037
Event: 1994 Symposium on Astronomical Telescopes and Instrumentation for the 21st Century, 1994, Kailua, Kona, HI, United States

Abstract

This paper investigates and compares wavefront sensing options for a proposed natural guide star adaptive optics upgrade for the Keck telescope. The methods of curvature sensing and slope sensing with a Hartmann sensor are compared. A curvature sensor model is developed that includes nonlinear, diffraction, and noise effects. The analytical model is validated in simulation using the Keck optical prescription parameters. A comprehensive treatment of estimation/reconstruction is presented and used for the Hartmann sensor/curvature sensor comparisons.

Citation Download Citation

Mark H. Milman, Laura Needels, and David C. Redding "Wavefront reconstruction methods for a natural guide star adaptive optics application to the Keck Telescope", Proc. SPIE 2201, Adaptive Optics in Astronomy, (31 May 1994); https://doi.org/10.1117/12.176037

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