Multidimensional partial response for parallel readout optical memories

Brita H. Olson; Sadik C. Esener

doi:10.1117/12.187303

29 September 1994 Multidimensional partial response for parallel readout optical memories

Brita H. Olson, Sadik C. Esener

Proceedings Volume 2297, Photonics for Processors, Neural Networks, and Memories II; (1994) https://doi.org/10.1117/12.187303
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

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.

Citation Download Citation

Brita H. Olson and Sadik C. Esener "Multidimensional partial response for parallel readout optical memories", Proc. SPIE 2297, Photonics for Processors, Neural Networks, and Memories II, (29 September 1994); https://doi.org/10.1117/12.187303

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