中文摘要：

光交换系统是波长路由、中心数据传输中的核心部分，目前光网络的发展方向是实现高速、多端口数和大容量光交换。采用 AWG（阵列波导光栅）的波长路由技术结合高速波长可调激光器，是实现大规模光交换系统中纳秒级开关时间的最有效的技术方案。文章分别从 AWGR（阵列波导光栅路由器）的周期性、串联、并联以及串并联等4个方面，对不同的架构方案进行了阐述。

英文摘要：

Optical switching system is the core part of the wavelength routing and central data transmission in the optical net-work,which is currently developing towards high-rate,multiport and high-capacity optical switching.This paper explains that the router technology of Arrayed Waveguide Grating （AWG）combined with high-rate tunable lasers is the most effective scheme for realizing ns-grade switching time in a large-scale optical switching system.Furthermore,it describes schemes with different architectures of AWGR in four aspects,i.e.cyclicity,series,parallel,series-parallel.