Paper
7 December 1998 Control loop analysis for a nematic liquid crystal spatial light modulator used in an adaptive optics system
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Abstract
We discuss the use of Liquid Crystal Phase Modulators (LCPM) as a repeatable test source for use with adaptive optics systems. LCPMs have the potential to induce controlled, repeatable, dynamic aberrations into optical system at low cost, low complexity, and high flexibility. Since they are programmable, and can be operate as transmissive elements, they can easily be inserted into the optical path of an adaptive optics system and used to generate a disturbance test source. Laboratory experiments with a Meadowlark liquid crystal phase modulator are presented.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
David Charles Dayton, Stephen L. Browne, and John D. Gonglewski "Control loop analysis for a nematic liquid crystal spatial light modulator used in an adaptive optics system", Proc. SPIE 3494, Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing II, (7 December 1998); https://doi.org/10.1117/12.332414
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KEYWORDS
Adaptive optics

Liquid crystals

Turbulence

Deformable mirrors

Modulators

Control systems

Refractive index

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