Abstract

Photorefractive-based optical memory systems have received considerable attention in recent years [1-6] In these systems, numerous volume holograms are stored within a single photorefractive crystal, with the writing and recall selectivity generally being performed via angle [1] wavelength [2,3], or phase [4] multiplexing. As well, non-photorefractive-based optical memory systems [7,8] have been proposed. In this paper, we present a hybrid system [6] that utilizes a combination of wavelength and angle multiplexing in a photorefractive medium. Such a hybridization is driven by photonic source generation and manipulation device limitations, as well as the desire to expand information throughput rates in optical memory systems via spectral parallelism [9]. Our design is essentially the summation over wavelength of many angularly multiplexed volume memory systems. We therefore compare our system’s parameters to those of purely wavelength or angle multiplexed ones.

© 1995 Optical Society of America