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Proceedings Paper

Optoelectronic approach to optical parallel processing based on the photonic parallel memory
Author(s): Kenichi Matsuda; Jun Shibata
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Paper Abstract

A photonic parallel memory (PPM), an array of optoelectronic bistable switches, was proposed for application to optical parallel processing. Each of the switch consists of a heterojunction phototransistor (HPT) and a light-emitting diode (LED). In addition to the electrically erased PPM having only switches, an optically erasable PPM (OE-PPM) with functions of optical write-in, read-out and erasing was fabricated. The optical reset function was attained by an additional HPT connected to the switch electrically in parallel. The PPM can be used not only as a memory but as a logic gate. An optical parallel logic gate executing exclusive OR (EOR) was proposed as an application of the OE-PPM. The EOR operation with optical input and output was implemented.

Paper Details

Date Published: 1 December 1991
PDF: 9 pages
Proc. SPIE 1562, Devices for Optical Processing, (1 December 1991); doi: 10.1117/12.50767
Show Author Affiliations
Kenichi Matsuda, Matsushita Electric Industrial Co., Ltd. (Japan)
Jun Shibata, Matsushita Electric Industrial Co., Ltd. (Japan)

Published in SPIE Proceedings Vol. 1562:
Devices for Optical Processing
Debra M. Gookin, Editor(s)

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