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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 22 — Oct. 29, 2007
  • pp: 14498–14503

Defect superlattice solitons

W. H. Chen, Y. J. He, and H. Z. Wang  »View Author Affiliations

Optics Express, Vol. 15, Issue 22, pp. 14498-14503 (2007)

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We reveal theoretically that defect superlattice solitons (DSSs) exist at the defect site in one-dimensional optical superlattices with focusing saturable nonlinearity. Solitons with some unique properties exist in superlattices with defects. For a positive defect, solitons exist at the semi-infinite gap, and solitons are stable at low power but unstable at high power. For a negative defect, most solitons exist in the first finite gap and can propagate stably. In particular, it is found that the solitons can be divided into two equal parts upon propagation in a certain regime of parameters.

© 2007 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons

ToC Category:
Nonlinear Optics

Original Manuscript: July 19, 2007
Revised Manuscript: September 3, 2007
Manuscript Accepted: September 19, 2007
Published: October 19, 2007

W. H. Chen, Y. J. He, and H. Z. Wang, "Defect superlattice solitons," Opt. Express 15, 14498-14503 (2007)

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