啁啾光学格子中非局域空间光孤子的传输特性研究

The spatial optical solitons in optical lattices have become one of the hot research topics for its potential application value in the all-optical control. Especially after the advent of the optically-induced technique, different types of new optical lattices have been realized experimentally. Among them, transverse amplitude and (or) frequency modulated chirped optical lattices provide novel opportunities for the control of solitons. On the other hand, as a member of the spatial optical soliton family, the nonlocal spatial optical soliton has a lot of unusual properties which can bring about a revolutionary new technique to control light. In this project, we intend to study the propagation properties of the nonlocal spatial optical solitons in chirped optical lattices by combining together the two respects. We will reveal the new propagation phenomena and rules of the nonlocal spatial optical solitons that different types of chirped lattices support and analyse the relation between the lattice parameters and the soliton propagation behaviour, by designing these lattices. We will also explore the effect of the nonlocality on the propagation process of the nonlocal spatial optical solitons in chirped lattices. The anticipated achievement of this project can be used in the studies on many domains including the optical switches, the optical trapping, and the soliton induction waveguides. It is of great referential value for the design and preparation of the photonic information processing devices.

光学格子（光格）中的空间光孤子由于在全光控制等方面具有潜在的应用价值，成为当前国内外的研究热点之一。特别是光诱导技术出现后，各种新型光格得以在实验上实现。其中，沿横向振幅和（或）频率调制的啁啾光格为孤子的操控提供了新奇的机会。另一方面，作为种类繁多的空间光孤子家族中的一员，非局域空间光孤子具有许多奇异的性质，有望导致产生全新的操纵光的技术。本项目计划结合这两方面的性质研究啁啾光学格子中非局域空间光孤子的传输特性。设计多种啁啾格子，揭示其所支持的非局域空间光孤子传输的新现象和新规律，分析格子参数与孤子传输行为之间的的关系。探讨非局域效应对啁啾格子中非局域空间光孤子传输过程的影响。本项目的预期成果可应用于光开关、光捕获、孤子感应波导等领域的研究，对设计和制备光子信息处理器件具有重要的参考价值。