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We discuss thermal fixing as a solution to the volatility problem in holographic storage systems that use photorefractive materials such as LiNbO3:Fe. We present a systematic study to characterize the effect of thermal fixing on the error performance of a large-scale holographic memory. We introduce a novel, to our knowledge, incremental fixing schedule to improve the overall system fixing efficiency. We thermally fixed 10,000 holograms in a 90 degrees-geometry setup by using this new schedule. All the fixed holograms mere retrieved with no errors. (C) 1999 Optical Society of America.
Touradj Ebrahimi, Michela Testolina
Hubert Girault, Pekka Eero Peljo, Sunny Isaïe Maye