TITLE

Ultrafast all-optical switching in AlGaAs photonic crystal waveguide interferometers

AUTHOR(S)
Szymanski, D. M.; Jones, B. D.; Skolnick, M. S.; Fox, A. M.; O'Brien, D.; Krauss, T. F.; Roberts, J. S.
PUB. DATE
October 2009
SOURCE
Applied Physics Letters;10/5/2009, Vol. 95 Issue 14, p141108
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have demonstrated ultrafast all-optical switching with photonic crystals integrated into AlGaAs Mach–Zehnder interferometers. The nonlinearity is induced by optical excitation of carriers into one arm of the interferometer, and switching times as short as 3 ps are achieved by surface recombination at the air holes in the photonic crystal. The fast recombination times and high nonlinearities of the AlGaAs material make this design suitable for high speed all-optical switching applications.
ACCESSION #
44539728

 

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