Pure Optical Parallel Array Logic System--An Optical Parallel Computing Architecture--

Tsuyoshi KONISHI  Jun TANIDA  Yoshiki ICHIOKA  

IEICE TRANSACTIONS on Electronics   Vol.E77-C   No.1   pp.30-34
Publication Date: 1994/01/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Optical Interconnection)
optical computing,  optical interconnection,  parallel processing,  spatial light modulator,  birefringence,  

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We propose an optical computing architecture called pure optical parall array logic system (P-OPALS) as an instance of sophisticated optical computing system. On the P-OPALS, high density images can be processed in parallel using the optical system with high resolving power. We point out problems on the way to develop the P-OPALS and propose logical foundation of the P-OPALS called single-input optical array logic (S-OAL) as a solution of those problems. Based on the proposed architecture, an experimental system of the P-OPALS is constructed by using three optical techniques: birefringent encoding, selectable discrete correlator, and birefringent decoding. To show processing capability of the P-OPALS, some basic parallel operations are demonstrated. The results obtained indicate that image consisting of 300 100 pixels can be processed in parallel on the experimental P-OPALS. Finally, we estimate potential capability of the P-OPALS.