Title :
Fault-tolerant holographic memory with two photrefractive crystals
Author :
Toishi, M. ; Okamoto, A. ; Honma, S. ; Bunsen, M.
Author_Institution :
Res. Group of Comput. & Commun. Syst., Hokkaido Univ., Sapporo, Japan
Abstract :
We propose an all-optical fault-tolerant holographic memory with two photorefractive crystals. The memory system call automatically detect "dropout" data and rewrite a corresponding data from the back up crystal. We analyze the temporal response of the memory, and show how the dropout data are restored automatically.
Keywords :
holographic storage; optical phase conjugation; optical pumping; photorefractive materials; back up crystal; dropout data; fault-tolerant holographic memory; memory system; photorefractive crystals; refractive crystals all-optical fault-tolerant holographic memory; temporal response; Crystals; Fault tolerance; Geometrical optics; Gratings; Holographic optical components; Holography; Image restoration; Numerical analysis; Optical pumping; Photorefractive materials;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.970858
