The European Physical Journal D

, Volume 47, Issue 1, pp 107–112 | Cite as

All optical switching in semiconductor microresonators based on pattern selection

  • R. Kheradmand
  • M. Sahrai
  • H. Tajalli
  • G. TissoniEmail author
  • L. A. Lugiato
Nonlinear Dynamics


We present here a method for selecting optical patterns in a passive semiconductor microresonator, by using a spatial perturbation. A pattern is spontaneously generated in the system, and a switching beam causes this pattern to rotate even if the power in the switching beam is much lower than the power in the pattern. Thus, an all optical switch is realized, that operates at low light levels.


42.55.Sa Microcavity and microdisk lasers 42.79.Ta Optical computers, logic elements, interconnects, switches; neural networks 


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Copyright information

© EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2008

Authors and Affiliations

  • R. Kheradmand
    • 1
    • 2
  • M. Sahrai
    • 1
  • H. Tajalli
    • 1
  • G. Tissoni
    • 2
    Email author
  • L. A. Lugiato
    • 2
  1. 1.Research Institute for Applied Physics and Astronomy, University of TabrizTabrizIran
  2. 2.Dipartimento di Fisica e Matematica, Università dell'InsubriaINFM/CNR and CNISM ComoItaly

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