Abstract

Multi-segment liquid crystal spatial light modulators have received much attention recently for use as high-precision wavefront control devices for use in astronomical and non-astronomical applications. They act much like piston only segmented deformable mirrors. In this paper we investigate the use of these devices in conjunction with a Shack-Hartmann wave-front sensor. Previous investigators have considered Zernike modal control algorithms. In this paper we consider a zonal algorithm in order to take advantage of high speed matrix multiply hardware which we have in hand.

©1997 Optical Society of America

Theory and laboratory demonstrations on the use of a nematic liquid-crystal phase modulator for controlled turbulence generation and adaptive optics

David C. Dayton, Stephen L. Browne, Steven P. Sandven, John D. Gonglewski, and Alexis V. Kudryashov
Appl. Opt. 37(24) 5579-5589 (1998)

Control of laser heating in clusters through variation in temporal pulse shape

K. J. Mendham, J. W. G. Tisch, M. B. Mason, N. Hay, and J. P. Marangos
Opt. Express 11(12) 1357-1364 (2003)

Wave-front reconstruction using a Shack–Hartmann sensor

R. G. Lane and M. Tallon
Appl. Opt. 31(32) 6902-6908 (1992)

Comparison of curvature-based and Shack–Hartmann-based adaptive optics for the Gemini telescope

Françcois Rigaut, Brent L. Ellerbroek, and Malcolm J. Northcott
Appl. Opt. 36(13) 2856-2868 (1997)

Iteratively weighted centroiding for Shack-Hartmann wave-front sensors

K. L. Baker and M. M. Moallem
Opt. Express 15(8) 5147-5159 (2007)