Dark solitons on an intense parabolic background in nonlinear waveguides

Li L., Zhao X., BOZKURT M.

PHYSICAL REVIEW A, vol.78, no.6, 2008 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 78 Issue: 6
  • Publication Date: 2008
  • Doi Number: 10.1103/physreva.78.063833
  • Journal Name: PHYSICAL REVIEW A
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: nonlinear equations, optical planar waveguides, optical self-focusing, optical solitons, Schrodinger equation, SELF-SIMILAR PROPAGATION, SCHRODINGER-EQUATION, OPTICAL SIMILARITONS, FIBER, DISPERSION, PULSES, BRIGHT, COMPRESSION, GENERATION, INDEX
  • Ankara University Affiliated: Yes

Abstract

We address the dynamics of fundamental and higher-order dark solitons on the intense parabolic background in a planar graded-index waveguide with self-defocusing nonlinearity. It is shown that dark solitons on the parabolic background can propagate stably, and feature the properties similar to dark solitons for standard nonlinear Schrodinger equation. We present an approximate solution for dark soliton on a parabolic background, and discuss its motion trajectory. In addition, the interaction between neighboring dark solitons on parabolic background is investigated.