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Electronic compensation for nonideal spatial light modulator characteristics
journal contribution
posted on 2023-06-07, 20:12 authored by David M Budgett, James H Sharp, Pei C Tang, Rupert YoungRupert Young, Brian F Scott, Chris ChatwinChris ChatwinCompensation 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.
History
Publication status
- Published
Journal
Optical EngineeringISSN
0091-3286Publisher
Society of Photo-Optical Instrumentation EngineersExternal DOI
Issue
10Volume
39Page range
2601-2608ISBN
0091-3286Department affiliated with
- Engineering and Design Publications
Full text available
- No
Peer reviewed?
- Yes
Legacy Posted Date
2012-02-06Usage metrics
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