Optical multi-stable set-reset functions of optoelectronic integrated device composed of six heterojunction phototransistors over two laser diodes

An optoelectronic integrated device composed of six heterojunction phototransistors epitaxially integrated over two buried crescent laser diodes is developed. The integrated device provides internal electro-optical coupling among constituent components. The coupling has an important role to achieve...

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Bibliographic Details
Published in:Solid-state electronics 1995, Vol.38 (3), p.551-556
Main Authors: Ahmadi, Vahid, Noda, Susumu, Shibata, Kimitaka, Sasaki, Akio
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Miscellaneous
Optical and optoelectronic circuits
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Summary:An optoelectronic integrated device composed of six heterojunction phototransistors epitaxially integrated over two buried crescent laser diodes is developed. The integrated device provides internal electro-optical coupling among constituent components. The coupling has an important role to achieve several optical functions quite appropriate for the fields of neural network and optical information processing. With a proper combination of the constituent devices, the integrated device exhibits tetra-stable set-reset function (extendable to penta-stable set-reset function) when external optical pulses are incident to the device. Physics and mechanism of the device operation are discussed in detail and the experimental results are presented.
ISSN:0038-1101
1879-2405
DOI:10.1016/0038-1101(94)00135-3