Abstract

The cross-talk noise in hologram memory is analyzed with hybrid multiplexing of the Hadamard phase code and wavelength. The minimum wavelength differences required for obtaining a given signal-to-noise ratio are calculated, as well as the optimum angle between the signal and reference beams for this hybrid multiplexing scheme. Hybrid multiplexing with sufficient wavelength difference is a good method for memory extension in the case of limited-pixel-number spatial light modulators.

© 1999 Optical Society of America

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