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:10.1117/12.298060

15 January 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 3219, Optics in Atmospheric Propagation and Adaptive Systems II; (1998) https://doi.org/10.1117/12.298060
Event: Aerospace Remote Sensing '97, 1997, London, United Kingdom

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.

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 3219, Optics in Atmospheric Propagation and Adaptive Systems II, (15 January 1998); https://doi.org/10.1117/12.298060

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