Experiment on automatic data duplication in all-optical holographic memory

Mitsuru Toishi; Atsushi Okamoto; Kunihiro Sato; Hisatoshi Funakoshi

doi:10.1117/12.447108

30 October 2001 Experiment on automatic data duplication in all-optical holographic memory

Mitsuru Toishi, Atsushi Okamoto, Kunihiro Sato, Hisatoshi Funakoshi

Proceedings Volume 4598, Photonics Technology in the 21st Century; (2001) https://doi.org/10.1117/12.447108
Event: International Symposium on Photonics and Applications, 2001, Singapore, Singapore

Abstract

In this report, we study the automatic data duplication function in an all-optical fault tolerant holographic memory with two photorefractive crystals. In this memory, when a partial data are dropout, the dropout event is detected and the dropout data are restored automatically without any electronic device. We analyze the dependency of the data restoring performance on the frequency of dropout event. We calculate the MTTR (Mean Time To Recovery), in case the data in one crystal are dropout, then the data in another crystal are also lost before the dropout data haven't been completely yet. On the assumption that the data in one of the crystal are dropout, we conduct the experiment in the data recovery on this memory to examine the performance of restoring the data. We achieve that the MTTR is 1seconds and the data are continuously readout over 550 seconds when the stored data in one of the crystal are lost.

Citation Download Citation

Mitsuru Toishi, Atsushi Okamoto, Kunihiro Sato, and Hisatoshi Funakoshi "Experiment on automatic data duplication in all-optical holographic memory", Proc. SPIE 4598, Photonics Technology in the 21st Century, (30 October 2001); https://doi.org/10.1117/12.447108

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available