Compact holographic data storage system
A holographic data storage system having high recording density and compact memory architecture is disclosed. The system includes a laser light source, a spatial light modulator ( 40 ) for data input, a beam splitter ( 50 ) for separating out part of the parallel laser beams as reference beam, and a...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A holographic data storage system having high recording density and compact memory architecture is disclosed. The system includes a laser light source, a spatial light modulator (
40
) for data input, a beam splitter (
50
) for separating out part of the parallel laser beams as reference beam, and a beam steering system (
60
). Parallel laser beams passing through the spatial light modulator (
40
) form a two-dimensional signal beam carrying digital data. Unique patterns are then generated from interference of the signal beam and the reference beam, which can be recorded into the volume holographic medium (
10
) with unique incident position {grave over ()} angle and cross sectional phase distribution of reference beam. |
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