Volume holographic storage demonstrator based on phase-coded multiplexing

Author

Denz, Cornelia ; Müller, Kai-Oliver ; Heimann, Thorsten ; Tschudi, Theo

Author_Institution

Inst. of Appl. Phys., Tech. Univ. Darmstadt, Germany

Volume

4

Issue

5

fYear

1998

Firstpage

832

Lastpage

839

Abstract

We present the design and realization of a compact volume holographic memory based on phase-coded multiplexing. Due to the use of nonmechanical reference beam changes in this multiplexing technique, rapid access of the stored data pages is achieved. Our system can reach a maximum storage capacity up to 480 data pages with a resolution of 640×480 pixels in a single interaction region of a photorefractive LiNbO₃ crystal. We present the implementation of the system and first experimental results of both, high-resolution analog image storage and digital data storage. The storage of 180 data pages is demonstrated as well as the application of the system to real-time optical image processing

Keywords

holographic storage; lithium compounds; multiplexing; phase coding; photorefractive materials; 480 pixel; 640 pixel; LiNbO₃; analog image storage; data page; digital data storage; nonmechanical reference beam; optical storage; phase coded multiplexing; photorefractive LiNbO₃ crystal; real-time optical image processing; volume holographic memory; High speed optical techniques; Holographic optical components; Holography; Image processing; Image storage; Memory; OFDM; Photorefractive materials; Real time systems; Storage automation;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/2944.735769

Filename

735769