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Proceedings Paper

Architectures And Algorithms For Digital Optical Computing Systems With Applications To Numerical Transforms And Partial Differential Equations
Author(s): Timothy J. Drabik; Mark A. Title; Sing H. Lee
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Paper Abstract

The potential and promise of very high-performance spatial light modulators (SLMs) capable of performing logic operations has motivated the investigation of digital computing systems that possess many desirable attributes of optical systems, namely massive parallelism, global communication at high bandwidths, high reliability, many useful degrees of freedom, robustness in the presence of defects, and simplicity. The parallelism of easily realizable optical single-instruction, multiple-data (SIMD) arrays makes them a natural choice for implementation of highly structured algorithms for the numerical solution of multi-dimensional partial differential equations and the computation of fast numerical transforms. A system comprising several SLMs, an optical read/write memory, and a functional block to perform simple, space-invariant shifts on images has enough flexibility to implement the fastest known methods for partial differential equations (e.g. multi-level methods) as well as a wide variety of numerical transforms (e.g., FFT, Walsh-Hadamard transform, rapid transform), in two or more dimensions, and using either fixed or floating-point arithmetic. Performance is projected at greater than 109 floating-point operations/s using SLMs with resolution 1000 x 1000 operating at 1 MHz frame rates.

Paper Details

Date Published: 9 June 1986
PDF: 12 pages
Proc. SPIE 0625, Optical Computing, (9 June 1986); doi: 10.1117/12.963474
Show Author Affiliations
Timothy J. Drabik, University of California (United States)
Mark A. Title, University of California (United States)
Sing H. Lee, University of California (United States)

Published in SPIE Proceedings Vol. 0625:
Optical Computing
John A. Neff, Editor(s)

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