中文摘要：

随着人类社会步入高速信息时代，高速的通讯信息系统对材料性能提出了更高要求。详细分析了全光开关器件对非线性光学材料性能的要求，综述了硫系玻璃作为全光开关器件用材料性能方面的优势，并总结了近年来人们对硫系玻璃在全光开关应用方面的研究成果。

英文摘要：

Advanced properties of medium have been required by ultra - fast communication system, as human being is stepping into the information era. The required performances of non - linear optical materials for all - optical switching devices were described in details, and the advantages of chalcogenide glasses used for optical switching devices are illustrated. The research achievements on recent apphcation of chalcogenide glasses to switching devices are also summarized.