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Proceedings Paper

Improving spatial light modulator performance through phase compensation
Author(s): Jamie L. Harriman; Anna Linnenberger; Steve A. Serati
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Paper Abstract

High-resolution, liquid-crystal spatial light modulators (SLMs) are being used as dynamic phase screens1,2 for testing optical systems and as optical wavefront compensators3,4 to dynamically correct distortions. An SLM provides hundreds of waves of adjustable phase modulation across the aperture of the device. Some of this phase adjustment can be used to compensate for distortions internal to the SLM such as backplane curvature. Because of modulo-2π operation, the dynamic range of the device is not significantly decreased by adding phase compensation, as long as the phase shift over the aperture is only a few waves. In this paper, we will discuss the techniques being used to determine the correct phase compensation for SLMs and how the compensation is being applied through the SLM control software.

Paper Details

Date Published: 12 October 2004
PDF: 10 pages
Proc. SPIE 5553, Advanced Wavefront Control: Methods, Devices, and Applications II, (12 October 2004); doi: 10.1117/12.563394
Show Author Affiliations
Jamie L. Harriman, Boulder Nonlinear Systems, Inc. (United States)
Anna Linnenberger, Boulder Nonlinear Systems, Inc. (United States)
Steve A. Serati, Boulder Nonlinear Systems, Inc. (United States)

Published in SPIE Proceedings Vol. 5553:
Advanced Wavefront Control: Methods, Devices, and Applications II
John D. Gonglewski; Mark T. Gruneisen; Michael K. Giles, Editor(s)

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