Content-addressable data storage by use of volume holograms

被引:65
作者
Burr, GW [1 ]
Kobras, S [1 ]
Hanssen, H [1 ]
Coufal, H [1 ]
机构
[1] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA
关键词
D O I
10.1364/AO.38.006779
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Data stored as volume holograms-optical interference patterns imprinted into a photosensitive storage material-can be accessed both by address and by content. An optical correlation-based search compares each input query against all stored records simultaneously, a massively parallel but inherently noisy analog process. With data encoding and signal postprocessing we demonstrate a holographic content-addressable data-storage system that searches digital data with high search fidelity. (C) 1999 Optical Society of America OCIS codes: 200.4540, 210.2860.
引用
收藏
页码:6779 / 6784
页数:6
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