Abstract

An innovative architecture for compact, integrated volume holographic memories is described. It is based on phase-conjugate readout and on a modulator–detector–memory array implemented in a silicon integrated circuit. The lensless memory module sustains dynamic read–write holograms by periodic refreshing. The integrated circuit is described and experimentally characterized. Holograms were stored in a prototype storage module that uses a 30°-cut BaTiO₃ crystal and the 90° recording geometry. As many as three angularly multiplexed holograms were periodically refreshed and subjected to $>40$% decay from exposure to the reference beam over 50 to 100 cycles. Experimental data are presented.

© 1997 Optical Society of America

Multiplexed phase-conjugate holographic data storage with a buffer hologram

Geoffrey W. Burr and Inmaculada Leyva
Opt. Lett. 25(7) 499-501 (2000)

Pure phase correlator with photorefractive filter memory

M. Duelli, A. R. Pourzand, N. Collings, and R. Dändliker
Opt. Lett. 22(2) 87-89 (1997)

Pixel size limit in holographic memories

Wenhai Liu and Demetri Psaltis
Opt. Lett. 24(19) 1340-1342 (1999)

Modulation coding for pixel-matched holographic data storage

Geoffrey W. Burr, Jonathan Ashley, Hans Coufal, Robert K. Grygier, John A. Hoffnagle, C. Michael Jefferson, and Brian Marcus
Opt. Lett. 22(9) 639-641 (1997)

Pixel-matched holographic data storage with megabit pages

R. M. Shelby, J. A. Hoffnagle, G. W. Burr, C. M. Jefferson, M.-P. Bernal, H. Coufal, R. K. Grygier, H. Günther, R. M. Macfarlane, and G. T. Sincerbox
Opt. Lett. 22(19) 1509-1511 (1997)