Electronic compensation for nonideal spatial light modulator characteristics

Budgett, David M, Sharp, James H, Tang, Pei C, Young, Rupert C D, Scott, Brian F and Chatwin, Christopher R (2000) Electronic compensation for nonideal spatial light modulator characteristics. Optical Engineering, 39 (10). pp. 2601-2608. ISSN 0091-3286

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Abstract

Compensation for spatial light modulator device imperfections can be achieved using digital electronics. Optical computing applications, requiring accurate phase or amplitude modulation, can then make use of low-cost, enhanced devices. Using electronic compensation, corrections can be made for a nonsquare aspect ratio in the aperture window and a nonlinear phase response—which may also be nonuniform over the aperture. The corrections for these imperfections are implemented using low-cost field programmable gate arrays. This technology enables real-time compensation and is easily adapted to suit a wide range of display devices. The performance enhancement is demonstrated using a popular Seiko-Epson liquid crystal television display operating as a phase modulating spatial light modulator. These developments greatly extend the utility of readily available, inexpensive, spatial light modulators.

Item Type: Article
Schools and Departments: School of Engineering and Informatics > Engineering and Design
Depositing User: Rupert Young
Date Deposited: 06 Feb 2012 18:29
Last Modified: 14 Sep 2012 12:21
URI: http://sro.sussex.ac.uk/id/eprint/16648
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