Photonic convolutional accelerator and neural network in the Tera-OPs regime based on Kerr microcombs

  • Xingyuan Xu
  • , Mengxi Tan
  • , Bill Corcoran
  • , Jiayang Wu
  • , Andreas Boes
  • , Thach G. Nguyen
  • , Sai T. Chu
  • , Brent E. Little
  • , Damien G. Hicks
  • , Roberto Morandotti
  • , Arnan Mitchell
  • , David J. Moss*
  • *Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We report a photonic RF arbitrary waveform generator and phase encoded signal generator using a soliton crystal micro-comb source with a free spectral range (FSR) of 48.9 GHz, that provides 80 wavelengths. We achieve arbitrary waveform shapes including square waveforms with a tunable duty ratio from 10% to 90%, sawtooth waveforms with a slope ratio of 0.2 to 1, and a symmetric concave quadratic chirp waveform with an instantaneous frequency of sub GHz. The phase encoded signal generator achieves a high pulse compression ratio of 30 and phase encoding rates from 2 to 6 Gb/s This work verifies the effectiveness of using microcombs for high-performance, broad bandwidth, nearly user-defined RF waveform generation.

Original languageEnglish
Title of host publicationIntegrated Optics
Subtitle of host publicationDevices, Materials, and Technologies XXV
EditorsSonia M. Garcia-Blanco, Pavel Cheben
PublisherSPIE
ISBN (Electronic)9781510642133
DOIs
StatePublished - 2021
Externally publishedYes
EventIntegrated Optics: Devices, Materials, and Technologies XXV 2021 - Virtual, Online, United States
Duration: 6 Mar 202111 Mar 2021

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11689
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceIntegrated Optics: Devices, Materials, and Technologies XXV 2021
Country/TerritoryUnited States
CityVirtual, Online
Period6/03/2111/03/21

Keywords

  • Optical neural networks
  • convolutional accelerator
  • microcomb
  • neuromorphic processor

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