Error-correcting codes for page-oriented optical memories

John F. Hutton; George A. Betzos; Maureen E. Schaffer; Pericles A. Mitkas

doi:10.1117/12.256149

1 November 1996 Error-correcting codes for page-oriented optical memories

John F. Hutton, George A. Betzos, Maureen E. Schaffer, Pericles A. Mitkas

Proceedings Volume 2848, Materials, Devices, and Systems for Optoelectronic Processing; (1996) https://doi.org/10.1117/12.256149
Event: SPIE's 1996 International Symposium on Optical Science, Engineering, and Instrumentation, 1996, Denver, CO, United States

Abstract

Parallel optical memories have been proposed to meet high speed, high capacity storage requirements for input/output intensive computer applications. This technology offers the capability for storage and retrieval of optical data in 2D pages resulting in high capacity and high throughput. CUrrent raw bit error rates of experimental systems fall significantly short of the minimum industry requirement of 10^-12 for binary data. Thus, error control techniques for 2D data are necessary in order for such memories to be commercially feasible. In this paper, we discuss several error control schemes suitable for page- oriented data and specifically applicable to page-oriented optical memories. To better interface between the memory and the electronic host computer, we propose 'smart' photo- detector array devices in which the input is optical but the output is electronic. These arrays receive the optical signal form the memory and covert it to electronic data. Utilizing the speed of VLSI technology, the arrays perform fast parallel decoding and data correction, thereby providing an efficient optoelectronic interface between the memory and the electronic computer.

Citation Download Citation

John F. Hutton, George A. Betzos, Maureen E. Schaffer, and Pericles A. Mitkas "Error-correcting codes for page-oriented optical memories", Proc. SPIE 2848, Materials, Devices, and Systems for Optoelectronic Processing, (1 November 1996); https://doi.org/10.1117/12.256149

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