Azimuthons in weakly nonlinear waveguides of different symmetries
Date
2010-12-20
Authors
Zhang, Yiqi
Skupin, Stefan
Maucher, Fabian
Pour, Arpa Galestian
Lu, Keqing
Królikowski, Wieslaw
Journal Title
Journal ISSN
Volume Title
Publisher
Optical Society of America
Abstract
We show that weakly guiding nonlinear waveguides support stable propagation of rotating spatial solitons (azimuthons). We investigate the role of waveguide symmetry on the soliton rotation. We find that azimuthons in circular waveguides always rotate rigidly during propagation and the analytically predicted rotation frequency is in excellent agreement with numerical simulations. On the other hand, azimuthons in square waveguides may experience spatial deformation during propagation. Moreover, we show that there is a critical value for the modulation depth of azimuthons above which solitons just wobble back and forth, and below which they rotate continuously. We explain these dynamics using the concept of energy difference between different orientations of the azimuthon.
Description
Keywords
computer simulation, computer-aided design, equipment design, equipment failure analysis, light, mesons, nonlinear dynamics, refractometry, scattering, radiation, models, theoretical
Citation
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Source
Optics Express
Type
Journal article
Book Title
Entity type
Access Statement
Open Access