二维光子晶体波导研究进展

Research Progress of Two-Dimensional Photonic Crystal Waveguides

二维光子晶体波导具有特殊的光子能带结构、可控色散、极小的几何尺寸和极强的非线性特性,近年来在非线性光学、光学逻辑门、全光缓存、光功率分束器、光子晶体激光器以及高灵敏度传感器等领域引起了广泛的关注。介绍了二维光子晶体波导的制备方法,总结了其传输损耗、多模耦合的自成像效应和慢光效应等方面的研究进展,并特别提到基于硫系玻璃这一特殊基质的二维光子晶体波导,最后展望了二维光子晶体波导的发展前景。

Two-dimensional photonic crystal waveguides have special photonic band structure, controllable optical dispersion, small physical dimension and high nonlinearity, which draw wide attention in areas of nonlinear optics, optical logic gates, all-optical buffer, optical-power splitter, photonic-crystal lasers and high-sensitivity sensor. The fabrication technique of two-dimensional photonic crystal waveguides is introduced, the propagation loss, self-imaging effect of multi-mode coupling and slow light effect are summarized. In particular, two-dimensional photonic crystal waveguides based on chalcogenide glasses are mentioned. At last, the development prospect of two-dimensional photonic crystal waveguides is discussed.