中文摘要：

介绍在纳米（亚微米）量级上的硅波导，包括其结构，性质，和与普通石英光纤相比的优点。再介绍在硅波导内的非线性光学过程（拉曼效应，四波混频，波长转换效应等），以及这些效应所带来的在光器件和技术上的进步。最后总结nm量级上的硅波导的研究现状以及发展潜力。

英文摘要：

In this paper we introduce silicon nano-wire waveguides＇ structure, properties and superiority compared with conventional silica fiber. Then we present the nonlinear processes in silicon waveguides such as Raman effect, four-wave mixing and wavelength conversion efficiency, as well as progresses in optical devices and technology due to these nonlinear effects. In the end, we summarize status of silicon waveguides＇ research and its future.