Theoretical and experimental aspects of optical storage of information via refreshing by inverse seeding in a photorefractive Ba0.77Ca0.23TiO3 crystal (BCT)

被引：3
|
作者：
Matusevich, V [1 ]
Kiessling, A [1 ]
Kowarschik, R [1 ]
机构：
[1] Univ Jena, Inst Appl Opt, D-07743 Jena, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2001年 / 72卷 / 06期
关键词：
D O I：
10.1007/s003400100565
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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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收藏
页码：775 / 780
页数：6
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