人类已经跨入了21世纪,进入了一个崭新的信息社会、信息化时代。其最重要的标志之一就是人们相互间的通信越来越频繁、越来越快、越来越方便了。这主要得益于光纤通信技术的诞生及快速发展。风靡全球的“信息高速公路”——即国家/全球信息基础结构(NⅡ/GⅡ)的建立和发展又促使光纤通信技术向着更高层次发展。回顾20世纪,我们非常高兴地看到,这个世纪中最重大的科技发明就是光纤通信。这一点已经得到了全球通信实践的证明。随着全球互联网和电子商 Mankind has entered the 21st century, entered a new information society and information age. One of the most important signs is that people communicate with each other more and more frequently, faster and faster, more and more convenient. This is mainly due to the birth and rapid development of optical fiber communication technology. The rise and development of the world’s “information superhighway” - that is, the nation / global information infrastructure (NII / GII) - has pushed optical fiber communication technology to a higher level. Looking back at the 20th century, we are very pleased to see that the most significant technological invention in this century is optical fiber communication. This point has been proved by the practice of global communications. With the global Internet and e-commerce