Integrated multi-operand electro-optic logic gates for optical computing

Integrated optical computing has the potential to enhance the computation abilities in terms of computing speed and power consumption during the post-Moore's law era. As one of the widely investigated approaches, electro-optic logic uses electro-optic switches as the building blocks to achieve...

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Bibliographic Details
Published in:Applied physics letters 2019-10, Vol.115 (17)
Main Authors: Ying, Zhoufeng, Feng, Chenghao, Zhao, Zheng, Soref, Richard, Pan, David, Chen, Ray T.
Format: Article
Language:English
Subjects:
Applied physics
Computation
Field programmable gate arrays
Gates (circuits)
Insertion loss
Logic circuits
Moore's law
Optics
Power consumption
Switches
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Summary:Integrated optical computing has the potential to enhance the computation abilities in terms of computing speed and power consumption during the post-Moore's law era. As one of the widely investigated approaches, electro-optic logic uses electro-optic switches as the building blocks to achieve complex functions. In this paper, we propose and experimentally demonstrate a multioperand electro-optic logic gate that contains multiple active regions in a single gate to further increase the versatility of gates. Thus, one gate can be controlled by several electrical inputs simultaneously. The ability of multioperand logic gates is thoroughly explored. The detailed comparison shows that the proposed gate can largely improve the circuit performance in terms of the area, latency, power, and insertion loss. We believe the multioperand logic gate has the potential to contribute to a more compact and power-efficient integrated optical computing system.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.5126517