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Optical Engineering

Optoelectronic quotient-selected modified signed-digit division
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Paper Abstract

A novel optoelectronic quotient-selected modified signed-digit division technique is proposed. This division method generates one quotient digit per iteration involving only one shift operation, one quotient selection operation and one addition/subtraction operation. The quotient digit can be selected by observing three most significant digits of the partial remainder independent of the divisor. Two algorithms based on truth-table look-up and binary logic operations are derived. For optoelectronic implementation, an efficient shared content-addressable memory based architecture as well as compact logic array processor based architecture with an electron-trapping device is proposed. Performance evaluation of the proposed optoelectronic quotient-selected division shows that it is faster than the previously reported convergence division approach. Finally, proof-of-principle experimental results are presented to verify the effectiveness of the proposed technique.

Paper Details

Date Published: 1 February 2001
PDF: 8 pages
Opt. Eng. 40(2) doi: 10.1117/1.1336524
Published in: Optical Engineering Volume 40, Issue 2
Show Author Affiliations
Feng Qian, Shanghai Institute of Optics and Fine Mechanics (China)
Guoqiang Li, Univ. of California/San Diego (United States)
Mohammad S. Alam, Univ. of Alabama (United States)

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