Abstract
Holographic digital data storage has been accomplished for over 16,000 bits per page in a page-organized hologram memory, but without a page composer. Instead, data is input sequentially as it arrives at the memory inputs, one bit at a time, and with random access to any bit address within the page. To do this, a new kind of page synthesizer was developed, and excellent results have been obtained using it to record page arrays of data in Fe-doped LiNbO3. In addition, certain interesting and surprising effects of recording and reading out data in this material by page synthesis will be described, including a discrete, step by step erasure effect unlike the expected gradual erasure of data by successive multiple exposures.
© 1974 Optical Society of America
Full Article | PDF ArticleMore Like This
Gordon R. Knight
Appl. Opt. 13(4) 904-912 (1974)
L. d’Auria, J. P. Huignard, C. Slezak, and E. Spitz
Appl. Opt. 13(4) 808-818 (1974)
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)