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- Title
Theoretical and experimental aspects of optical storage of information via refreshing by inverse seeding in a photorefractive Ba[sub 0.77] Ca[sub 0.23] TiO[sub 3] crystal (BCT).
- Authors
Matusevich, V.; Kiessling, A.; Kowarschik, R.
- Abstract
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 Ba[sub 0.77]Ca[sub 0.23]TiO[sub 3] 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.
- Subjects
OSIRIS (Electronic computer system); DOCUMENTS in optical storage; BARIUM compounds; OPTICAL phase conjugation
- Publication
Applied Physics B: Lasers & Optics, 2001, Vol 72, Issue 6, p775
- ISSN
0946-2171
- Publication type
Article
- DOI
10.1007/s003400100565