Reconfigurable all-optical nonlinear activation functions

Aashu Jha, Chaoran Huang, Paul R. Prucnal

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations


We experimentally demonstrate all-optical reconfigurable nonlinear activation functions in a cavity-loaded machzehnder interferometer device utilizing free-carrier dispersion effect in silicon. Our device can be flexibly programmed to generate the following functions: clamped-ReLU, sigmoid, radial-basis and softplus, which can be employed in various neuromorphic tasks. nonlinear optics, neuromorphic photonics.

Original languageEnglish (US)
Title of host publication2020 IEEE Photonics Conference, IPC 2020 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728158914
StatePublished - Sep 2020
Event2020 IEEE Photonics Conference, IPC 2020 - Virtual, Vancouver, Canada
Duration: Sep 28 2020Oct 1 2020

Publication series

Name2020 IEEE Photonics Conference, IPC 2020 - Proceedings


Conference2020 IEEE Photonics Conference, IPC 2020
CityVirtual, Vancouver

All Science Journal Classification (ASJC) codes

  • Artificial Intelligence
  • Computer Networks and Communications
  • Signal Processing
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Atomic and Molecular Physics, and Optics


  • neuromorphic photonics
  • nonlinear optics


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