Binary phase modulation using electrically addressed transmissive and silicon backplane spatial light modulators

Clarence Augustine T.H. Tee; William A. Crossland; Tim D. Wilkinson; Anthony B. Davey

doi:10.1117/1.1287395

1 September 2000 Binary phase modulation using electrically addressed transmissive and silicon backplane spatial light modulators

Clarence Augustine T.H. Tee, William A. Crossland, Tim D. Wilkinson, Anthony B. Davey

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Optical Engineering, Vol. 39, Issue 9, (September 2000). https://doi.org/10.1117/1.1287395

The operation and performance of a 128-by-128 matrix electrically addressed ferroelectric liquid crystal (FLC) multiplexed transmissive spatial light modulator (SLM) and a 320-by-240 reflective silicon- backplane SLM are described. The two-dimensional multiplexed FLC SLM is probably the only device that exists to date optimized for ? = 1.55-?m operation. The spatial and temporal measurements of the binary phase modulation of the two devices are discussed. For the spatial measurements, a novel idea regarding the effects of the LC modulation characteristics in the interpixel deadspace of the silicon backplane on the quality of the binary phase modulation is described. For the temporal measurements, two addressing schemes for holographic beamsteering applications are described and compared experimentally with the silicon-backplane SLM. The limitation in performance for these two devices is briefly stated, and an indication given of future devices that will be possible using this rapidly advancing technology.

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Clarence Augustine T.H. Tee, William A. Crossland, Tim D. Wilkinson, and Anthony B. Davey "Binary phase modulation using electrically addressed transmissive and silicon backplane spatial light modulators," Optical Engineering 39(9), (1 September 2000). https://doi.org/10.1117/1.1287395

Published: 1 September 2000

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