Holography for information storage and processing

Geoffrey W. Burr

doi:10.1117/12.510404

10 November 2003 Holography for information storage and processing

Geoffrey W. Burr

Proceedings Volume 5181, Wave Optics and Photonic Devices for Optical Information Processing II; (2003) https://doi.org/10.1117/12.510404
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We review recent progress made towards two types of holographic data storage systems. The first offers the potential for simultaneous search of an entire database by performing multiple optical correlations between stored data pages and a search argument. This content-addressable retrieval produces one analog correlation score for each stored volume hologram. We review work we have performed on fuzzy encoding techniques, experimental demonstrations of hardware-level database searching, on the measurement of true inner-products, on architectures in which massively-parallel searches could be implemented, and on quantifying the inherent speed-fidelity tradeoffs. The second system offers read-write, fast-access data storage. We review systems architectures for extending this high density to high capacity using phase-conjugate readout and signal processing to relieve alignment and distortion constraints.

Citation Download Citation

Geoffrey W. Burr "Holography for information storage and processing", Proc. SPIE 5181, Wave Optics and Photonic Devices for Optical Information Processing II, (10 November 2003); https://doi.org/10.1117/12.510404

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