Adaptive optics using a liquid crystal phase modulator in conjunction with a Shack-Hartmann wavefront sensor and zonal control algorithm

David Charles Dayton; Steven C. Sandven; John D. Gonglewski; Stephen L. Browne; Samuel C. Rogers; Scot W. McDermott

doi:10.1117/12.321699

11 September 1998 Adaptive optics using a liquid crystal phase modulator in conjunction with a Shack-Hartmann wavefront sensor and zonal control algorithm

David Charles Dayton, Steven C. Sandven, John D. Gonglewski, Stephen L. Browne, Samuel C. Rogers, Scot W. McDermott

Author Affiliations +

Proceedings Volume 3353, Adaptive Optical System Technologies; (1998) https://doi.org/10.1117/12.321699
Event: Astronomical Telescopes and Instrumentation, 1998, Kona, HI, United States

Abstract

Multi-segment liquid crystal spatial light modulators have received much attention recently for use as high-precision wave-front 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 wavefront sensor. In this paper we consider a zonal algorithm in order to take advantage of high speed matrix multiply hardware which we have in hand.

Citation Download Citation

David Charles Dayton, Steven C. Sandven, John D. Gonglewski, Stephen L. Browne, Samuel C. Rogers, and Scot W. McDermott "Adaptive optics using a liquid crystal phase modulator in conjunction with a Shack-Hartmann wavefront sensor and zonal control algorithm", Proc. SPIE 3353, Adaptive Optical System Technologies, (11 September 1998); https://doi.org/10.1117/12.321699

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