Optical storage of information via refreshing by inverse seeding (OSIRIS)

In this paper we discuss the possibility for realizing an optical memory using dynamic refreshment. Using phase-correct back coupling by means of nonlinear optical phase conjugation the information stored in a photorefractive crystal is continuously read out, transmitted into an auxiliary memory and from this back into the crystal again and is, in this way, refreshed. Practical realizations and first results are presented.