Bistability patterns and nonlinear switching with very high contrast ratio in a 1550 nm quantum dash semiconductor laser

A. Hurtado, M. Nami, I. D. Henning, M. J. Adams, L. F. Lester

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We report on the experimental observation of optical bistability (OB) and nonlinear switching (NS) in a nanostructure laser; specifically a 1550 nm quantum dash Fabry-Perot laser subject to external optical injection and operated in reflection. Different shapes of optical bistability and nonlinear switching, anticlockwise and clockwise, with very high on-off contrast ratio (up to 180:1) between output states were experimentally measured. These results added to the potential of nanostructure lasers for enhanced performance offer promise for use in fast all-optical signal processing applications in optical networks.

Original languageEnglish
Article number161117
Number of pages5
JournalApplied Physics Letters
Issue number16
Publication statusPublished - 15 Oct 2012


  • 1550 nm
  • all-optical signal processing
  • different shapes
  • experimental observation
  • Fabry Perot lasers
  • high contrast ratio
  • nanostructure lasers
  • nonlinear switching
  • on-off contrast ratio
  • optical injection
  • quantum dashes

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