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Soliton formation near topological defects in waveguide arrays

: Heinrich, M.; Keil, R.; Szameit, A.; Dreisow, F.; Nolte, S.; Tünnermann, A.


Heisterkamp, A.; Joseph Neev; Stefan Nolte; Rick P. Trebino ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Frontiers in ultrafast optics: biomedical, scientific, and industrial applications X : 24 - 26 January 2010, San Francisco, California, United States; SPIE Photonics West
Bellingham, WA: SPIE, 2010 (Proceedings of SPIE 7589)
ISBN: 978-0-8194-7985-3
Paper 75890V
Conference "Frontiers in Ultrafast Optics - Biomedical, Scientific, and Industrial Applications" <10, 2010, San Francisco/Calif.>
Photonics West Conference <2010, San Franciso/Calif.>
Conference Paper
Fraunhofer IOF ()

We report on the impact of topological defects on the formation of discrete spatial solitons in waveguide arrays. The influence of defects, i.e. waveguides with detuned effective refractive index, is well understood within such systems. They have been shown to support linear bound states and thus influence the formation of spatial solitons in the surrounding sites. We show numerically and demonstrate experimentally how the presence of topological defects caused by junctions within the otherwise periodical system similarly has a strong influence on the surrounding sites.