采用复势控制金兹堡-朗道耗散空间光孤子传输的研究

Spatial optical solitons have potential applications in optical information due to their stable wave envelope. Dissipative solitons widely exist in many systems, e.g. the Ginzburg-Landau nonlinear system. In general, the feature spectrum of dissipative solitons exhibits discrete change under the action of disturbing signal, which is important for it in applying to the all optical communication and device.. In this project, we study the dissipative soliton by use of complex potential in the Ginzburg-Landau system. We focus on analyze the effects of the depth, shape, and period of the complex potential on the dissipative soliton propagation. We will display mainly soliton properties, such as stability, surface state, drift, interaction, and vortex, from one- to three dimensional cases and from the fundamental to higher order states. These obtained results are also widely important in many physical systems, including optics, superconductivity, plasmas, Bose-Einstein condensate, etc. since the Ginzburg-Landau system occurs in them.

空间光孤子由于具有稳定波包而在光信息领域有重要应用前景。耗散空间光孤子广泛存在于金兹堡-朗道( Ginzburg-Landau）等许多重要耗散系统，其特征参量在扰动信号作用时一般体现出特征谱变化的离散性，这种现象在全光通信和全光器件方面有巨大的应用价值。. 本项目基于常见的激光腔系统— 3-5 阶非线性金兹堡- 朗道方程描述的耗散系统，研究复势控制耗散空间光孤子的传输特性。重点分析复势的强度、形状、周期等因素对耗散空间光孤子的影响，拟揭示从一维到三维、从基态到高阶的耗散空间光孤子的稳定性、表面态特性、横向移动性、相互作用性和漩涡性等特性。鉴于金兹堡-朗道耗散系统广泛存在于光学、超导、等离子体和Bose-Einstein凝聚等物理领域，故拟获得成果将具有重要而深远的意义。