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Waveguide design for minimum nonlinear effective area and switching energy in AlGaAs at half the bandgap

  • A. Villeneuve
  • , J. S. Aitchison
  • , B. Vögele
  • , R. Tapella
  • , J. U. Kang
  • , C. Trevino
  • , G. I. Stegeman

Research output: Contribution to journal › Article › peer-review

Abstract

The authors report a waveguide design which has been optimised to allow efficient, all-optical switching, in AIGaAs at half the bandgap. The effective area has been reduced to 6 μm2, allowing us to observe a nonlinear phase shift of > 5π. Nonlinear directional couplers, fabricated in the same material, exhibit a critical power of 42W of energy of 31 pJ.

Original languageEnglish (US)
Pages (from-to)549-551
Number of pages3
JournalElectronics Letters
Volume31
Issue number7
DOIs
StatePublished - Mar 30 1995
Externally publishedYes

Keywords

  • Aluminium gallium arsenide
  • Optical waveguide theory
  • Photonic switching

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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