Improving spatial light modulator performance through phase compensation

Jamie L. Harriman; Anna Linnenberger; Steve A. Serati

doi:10.1117/12.563394

12 October 2004 Improving spatial light modulator performance through phase compensation

Jamie L. Harriman, Anna Linnenberger, Steve A. Serati

Proceedings Volume 5553, Advanced Wavefront Control: Methods, Devices, and Applications II; (2004) https://doi.org/10.1117/12.563394
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

High-resolution, liquid-crystal spatial light modulators (SLMs) are being used as dynamic phase screens^1,2 for testing optical systems and as optical wavefront compensators^3,4 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.

Citation Download Citation

Jamie L. Harriman, Anna Linnenberger, and Steve A. Serati "Improving spatial light modulator performance through phase compensation", Proc. SPIE 5553, Advanced Wavefront Control: Methods, Devices, and Applications II, (12 October 2004); https://doi.org/10.1117/12.563394

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