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Thomas Kjellberg Jensen. Portrait.

Thomas Kjellberg Jensen

Doctoral student

Thomas Kjellberg Jensen. Portrait.

Direct on-Chip Optical Communication between Nano Optoelectronic Devices

Author

  • Vidar Flodgren
  • Abhijit Das
  • Joachim Elbeshausen Sestoft
  • David Alcer
  • Thomas Kjellberg Jensen
  • Hossein Jeddi
  • Håkan Pettersson
  • Jesper Nygård
  • Magnus Borgström
  • Heiner Linke
  • Anders Mikkelsen
Show all

Summary, in English

On-chip optical communication between individual nano optoelectronic components is important to reduce the footprint and improve energy efficiency of photonic neuromorphic solutions. Although nanoscale photon emitters and receivers have been reported separately, communication between them remains largely unexplored. We demonstrate direct on-chip directional broadcasting of light between individual InP nanowire photodiodes on silicon. The performance of multiple wire-to-wire communication circuits is mapped, demonstrating robust performance with up to 5 bit resolution as needed in biological networks and a minimum component driving power for continuous operation of 0.5 μW which is below that of conventional hardware. The results agree well with theoretical modeling that allows us to understand network performance limits and identify where significant improvements could be achieved. We estimate that an energy per operation of ∼1 fJ and signal fan-out from one emitter to hundreds of other nodes is possible. We find that the nanowire circuit performance parameters can satisfy the quantitative requirements to run the tasks of neural nodes in a bioderived neural network for autonomous navigation.

Department/s

  • LU Profile Area: Light and Materials
  • LTH Profile Area: Nanoscience and Semiconductor Technology
  • Synchrotron Radiation Research
  • NanoLund: Centre for Nanoscience
  • Department of Physics
  • Solid State Physics
  • ACT: Advanced Chip Technology
  • LTH Profile Area: Engineering Health
  • LTH Profile Area: Photon Science and Technology

Publishing year

2025-01-21

Language

English

Pages

655-665

Publication/Series

ACS Photonics

Volume

12

Issue

2

Document type

Journal article

Publisher

The American Chemical Society (ACS)

Topic

  • Nano-technology
  • Condensed Matter Physics (including Material Physics, Nano Physics)

Keywords

  • Optoelectronics
  • Nanowire
  • Communication
  • III-V
  • Neuromorphic
  • Nanophotonics
  • FDTD

Status

Published

Project

  • Development of Optically Communicating Nanowire-based III-V Devices: Optical broadcasting for artificial neural networks

ISBN/ISSN/Other

  • ISSN: 2330-4022