AbstractWe investigate numerically light propagation in a single spiraling waveguide formed in a nonlinear phot'/> Quasi-stable rotating solitons supported by a single spiraling waveguide
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Quasi-stable rotating solitons supported by a single spiraling waveguide

机译：由单螺旋波导支撑的准稳定旋转孤子

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AbstractWe investigate numerically light propagation in a single spiraling waveguide formed in a nonlinear photorefractive medium for high spatial frequency of the waveguide rotation. High here means above the frequencies that correspond to the stable rotary motion. The general procedure for finding exact fundamental solitonic solutions in the spiraling guiding structures is based on the modified Petviashvili’s iteration method. In the high frequency regime, the method gives only the solitons of low accuracy, that is, the quasi-stable solitonic solutions that radiate while propagating. Such solitons, still supported by the spiraling waveguide, perform quasi-stable rotational oscillatory motion, with inevitable soliton decay. We find that, for each set of physical parameters, there exists a beam power with minimal (in some cases practically negligible) wave radiation.
机译： Abstract 我们用数值方法研究了在非线性光折射介质中形成的单个螺旋形波导中的光传播。用于波导旋转的高空间频率。此处高表示高于对应于稳定旋转运动的频率。在螺旋形导引结构中找到精确的基本声子解的一般步骤是基于改进的Petviashvili的迭代方法。在高频状态下，该方法仅给出精度较低的孤子，即在传播时辐射的准稳定孤子解。仍然由螺旋形波导支撑的此类孤子执行准稳定的旋转振荡运动，不可避免地发生孤子衰减。我们发现，对于每组物理参数，都存在具有最小（在某些情况下几乎可以忽略）波辐射的光束功率。

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