Abstract.
We present a new experimental setup for the optical storage of information via refreshing by inverse seeding (OSIRIS), which allows a sixfold increase of the storage time of holograms in a Ba0.77Ca0.23TiO3 crystal (BCT). The setup consists of two four-wave mixing processes with common amplified signal waves and phase-conjugated (pc) waves. Temporal behaviours of the amplified and pc signal waves for the OSIRIS experiment as well as for the common four-wave mixing experiment are compared and discussed. The solutions of coupled equations under the depleted-pump approximation are obtained in order to estimate the pc reflectivities and coupling gains of gratings inside the crystal.
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Received: 13 December 2000 / Revised version: 26 January 2001 / Published online: 27 April 2001
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Matusevich, V., Kiessling, A. & Kowarschik, R. Theoretical and experimental aspects of optical storage of information via refreshing by inverse seeding in a photorefractive Ba0.77Ca0.23TiO3 crystal (BCT) . Appl Phys B 72, 775–780 (2001). https://doi.org/10.1007/s003400100565
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DOI: https://doi.org/10.1007/s003400100565