Ultrafast optical integration and pattern classification for neuromorphic photonics based on spiking VCSEL neurons

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Abstract

In today’s data-driven world, the ability to process large data volumes is crucial. Key tasks, such as pattern recognition and image classification, are well suited for artificial neural networks (ANNs) inspired by the brain. Neuromorphic computing approaches aimed towards physical realizations of ANNs have been traditionally supported by micro-electronic platforms, but recently, photonic techniques for neuronal emulation have emerged given their unique properties (e.g. ultrafast operation, large bandwidths, low cross-talk). Yet, hardware-friendly systems of photonic spiking neurons able to perform processing tasks at high speeds and with continuous operation remain elusive. This work provides a first experimental report of Vertical-Cavity Surface-Emitting Laser-based spiking neurons demonstrating different functional processing tasks, including coincidence detection and pattern recognition, at ultrafast rates. Furthermore, our approach relies on simple hardware implementations using off-the-shelf components. These results therefore hold exciting prospects for novel, compact and high-speed neuromorphic photonic platforms for future computing and Artificial Intelligence systems.
Original languageEnglish
Article number6098
Number of pages8
JournalScientific Reports
Volume10
Issue number1
Early online date8 Apr 2020
DOIs
Publication statusE-pub ahead of print - 8 Apr 2020

Keywords

  • image classification
  • pattern recognition
  • vertical cavity surface emitting laser

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