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Proceedings Paper

Multidimensional partial response for parallel readout optical memories
Author(s): Brita H. Olson; Sadik C. Esener
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Paper Abstract

We extend a serial communication technique, Partial Response (PR) precoding, to two and three dimensions to increase the capacity and signal separation in parallel readout optical memory systems. We also develop expressions for optimal 2D equalizers that improve signal separation by reshaping reconstructed pixels. We simulate and experimentally verify the performance of various forms of PR precoding in a coherent imaging readout system using 2D arrays of binary phase storage pixels. However, the techniques presented here may be applied to other readout systems and other storage values. With an equalizer, PR precoding yields a factor of two improvements in worst case signal separation over a system without precoding.

Paper Details

Date Published: 29 September 1994
PDF: 14 pages
Proc. SPIE 2297, Photonics for Processors, Neural Networks, and Memories II, (29 September 1994); doi: 10.1117/12.187303
Show Author Affiliations
Brita H. Olson, Univ. of California/San Diego (United States)
Sadik C. Esener, Univ. of California/San Diego (United States)

Published in SPIE Proceedings Vol. 2297:
Photonics for Processors, Neural Networks, and Memories II
Joseph L. Horner; Bahram Javidi; Stephen T. Kowel, Editor(s)

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