Tsopelas Ilias, Kominis Yannis, Hizanidis Kyriakos
School of Electrical and Computer Engineering, National Technical University of Athens, Zographou 15773, Greece.
Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Oct;76(4 Pt 2):046609. doi: 10.1103/PhysRevE.76.046609. Epub 2007 Oct 22.
The dynamics of dark spatial soliton beams and their interaction under the presence of a continuous wave (CW), which dynamically induces a photonic lattice, are investigated. It is shown that appropriate selection of the characteristic parameters of the CW result in controllable steering of a single soliton as well as controllable interaction between two solitons. Depending on the CW parameters, the soliton angle of propagation can be changed drastically, while two-soliton interaction can be either enhanced or reduced, suggesting a reconfigurable soliton control mechanism. Our analytical approach, based on the variational perturbation method, provides a dynamical system for the dark soliton evolution parameters. Analytical results are shown in good agreement with direct numerical simulations.
研究了暗空间孤子光束在连续波（CW）存在下的动力学特性及其相互作用，连续波会动态诱导形成光子晶格。结果表明，适当选择连续波的特征参数可实现单个孤子的可控转向以及两个孤子之间的可控相互作用。根据连续波参数，孤子的传播角度可发生显著变化，而两孤子相互作用可增强或减弱，这表明存在一种可重构的孤子控制机制。我们基于变分微扰法的分析方法为暗孤子演化参数提供了一个动力学系统。分析结果与直接数值模拟结果吻合良好。
