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Dynamic photorefractive optical memory

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Abstract

We investigate an architectural approach to dynamic three-dimensional volume storage that circulates holograms between two photorefractive crystals. Introduction of an optical amplifier into the system increases the effective write–erase asymmetry of the crystals and permits the amplification of the recalled images. This memory architecture is experimentally shown to provide write–erase storage with robustness to multiple optical readouts.

© 1991 Optical Society of America

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