Open AccessLinear and nonlinear light propagation at the interface of two homogeneous waveguide arrays
Author(s) -
A. Kanshu,
Christian E. Rüter,
Detlef Kip,
Petra P. Beličev,
Igor Ilić,
Milutin Stepić,
V. Shandarov
Publication year - 2011
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.19.001158
Subject(s) - optics , nonlinear system , homogeneous , waveguide , self phase modulation , physics , power (physics) , soliton , materials science , nonlinear optics , statistical physics , quantum mechanics , laser
We investigate linear and nonlinear light propagation at the interface of two one-dimensional homogeneous waveguide arrays containing a single defect of different strength. For the linear case and in a limited region of the defect size, we find trapped staggered and unstaggered modes. In the nonlinear case, we study the dependence of power thresholds for discrete soliton formation in different channels as a function of defect strength. All experimental results are confirmed theoretically using an adequate discrete model.