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Symmetry breaking and manipulation of nonlinear optical modes in an asymmetric double-channel waveguide

Li, Rujiang; Lv, Fei; Li, Lu; Xu, Zhiyong


We study light-beam propagation in a nonlinear coupler with an asymmetric double-channel waveguide and derive various analytical forms of optical modes. The results show that the symmetry-preserving modes in a symmetric double-channel waveguide are deformed due to the asymmetry of the two-channel waveguide, yet such a coupler supports the symmetry-breaking modes. The dispersion relations reveal that the system with self-focusing nonlinear response supports the degenerate modes, while for...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Physical Review A: Atomic, Molecular and Optical Physics
DOI: 10.1103/PhysRevA.84.033850


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