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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 26 — Dec. 20, 2010
  • pp: 27846–27857

Azimuthons in weakly nonlinear waveguides of different symmetries

Yiqi Zhang, Stefan Skupin, Fabian Maucher, Arpa Galestian Pour, Keqing Lu, and Wieslaw Królikowski  »View Author Affiliations

Optics Express, Vol. 18, Issue 26, pp. 27846-27857 (2010)

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We show that weakly guiding nonlinear waveguides support stable propagation of rotating spatial solitons (azimuthons). We investigate the role of waveguide symmetry on the soliton rotation. We find that azimuthons in circular waveguides always rotate rigidly during propagation and the analytically predicted rotation frequency is in excellent agreement with numerical simulations. On the other hand, azimuthons in square waveguides may experience spatial deformation during propagation. Moreover, we show that there is a critical value for the modulation depth of azimuthons above which solitons just wobble back and forth, and below which they rotate continuously. We explain these dynamics using the concept of energy difference between different orientations of the azimuthon.

© 2010 Optical Society of America

OCIS Codes
(190.0190) Nonlinear optics : Nonlinear optics
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(190.6135) Nonlinear optics : Spatial solitons

ToC Category:
Nonlinear Optics

Original Manuscript: October 18, 2010
Manuscript Accepted: November 16, 2010
Published: December 17, 2010

Yiqi Zhang, Stefan Skupin, Fabian Maucher, Arpa Galestian Pour, Keqing Lu, and Wieslaw Królikowski, "Azimuthons in weakly nonlinear waveguides of different symmetries," Opt. Express 18, 27846-27857 (2010)

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