Linear and nonlinear light propagation at the interface of two homogeneous waveguide arrays
Publication date
2011-01
Document type
Research article
Author
Organisational unit
Scopus ID
Pubmed ID
Series or journal
Optics express
Periodical volume
19
Periodical issue
2
First page
1158
Last page
1167
Part of the university bibliography
✅
Abstract
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.
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