Belić M, Petrović M, Jović D, Strinic Aleksandra, Arsenović D, Motzek K, Kaiser F, Jander Ph, Denz C, Tlidi M, Mandel Paul
Opt Express. 2004 Feb 23;12(4):708-16. doi: 10.1364/opex.12.000708.
We study numerically the counterpropagating vector solitons in SBN:60 photorefractive crystals. A simple theory is provided for explaining the symmetry-breaking transverse instability of these solitons. Phase diagram is produced that depicts the transition from stable counterpropagating solitons to bidirectional waveguides to unstable optical structures. Numerical simulations are performed that predict novel dynamical beam structures, such as the standing-wave and rotating multipole vector solitonic clusters. For larger coupling strengths and/or thicker crystals the beams form unstable self-trapped optical structures that have no counterparts in the copropagating geometry.
我们对SBN:60光折变晶体中的反向传播矢量孤子进行了数值研究。提供了一个简单的理论来解释这些孤子的对称性破缺横向不稳定性。绘制了相图，该相图描绘了从稳定的反向传播孤子到双向波导再到不稳定光学结构的转变。进行了数值模拟，预测了新颖的动态光束结构，如驻波和旋转多极矢量孤子簇。对于更大的耦合强度和/或更厚的晶体，光束形成不稳定的自陷光学结构，这在同向传播几何结构中不存在对应物。
