DataVXAIP AdvancesPaper
journal article·2022-12-01Open access

Ultrafast silicon threshold circuitry for chaotic laser time series

Kazuyuki Wada, Shinsuke Hara, Satoru Tanoi, Akifumi Kasamatsu, Yuta Otsuka, Kawori Sekine, Atsushi Uchida, Makoto Naruse

AIP Advances· Volume 12· Issue 12
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Source abstract

Abstract

Photonic computing has been intensively studied to explore the ultrahigh bandwidth of lightwaves. However, electronic support is indispensable for the post-processing and control of photonic systems owing to the difficulties encountered in all-optical processing. Herein, we demonstrate an ultrafast silicon circuitry capable of conducting thresholding operations on incoming chaotically oscillating high-bandwidth signals. Such circuits are critical elements in ultrafast random-number generators and photonic reinforcement learning that exploit chaotically oscillating time series. The circuit design, including active inductors for bandwidth expansion, and proof-of-principle fabricated device operations are demonstrated using a 180 nm silicon complementary metal–oxide–semiconductor technology node.
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Research context

Electronic materialsComposites

OpenAlex topics: Neural Networks and Reservoir Computing · Optical Network Technologies · Photonic and Optical Devices

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

School of Science and Technology, Meiji University 1 , 1-1-1 Higashimita, Tama-ku, Kawasaki, Kanagawa 214-8571, Japan

Advanced ICT Research Institute, National Institute of Information and Communications Technology 2 , 4-2-1 Nukui-kita, Koganei, Tokyo 184-8795, Japan

Department of Information and Computer Sciences, Saitama University 3 , 255 Shimo-Okubo, Sakura-ku, Saitama City, Saitama 338-8570, Japan

Department of Information Physics and Computing, Graduate School of Information Science and Technology, The University of Tokyo 4 , 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

Funding

Japan Science and Technology Agency · Japan Society for the Promotion of Science

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