Volume holographic memories combine high storage capacity, massive transfer rates due to page-oriented access, and the ability to associatively search the entire data set in a highly parallel way. We have developed an angularly multiplexed volume holographic associative memory for storing and searching alphanumeric database records. The system uses LiNbO/sub 3/:Fe as the storage medium and operates in three modes: a) the recording mode, when data pages are loaded on the spatial light modulator (SLM) and written in the crystal, b) the addressed-based retrieval mode, when a certain page is chosen and retrieved with the reference beam incident on the crystal at a given angle (address), and c) the content-based retrieval mode.
Holographic storage and associative processing of analog and digital data
01.01.1997
208753 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Holographic Storage and Associative Processing of Analog and Digital Data
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