光纤通信──信息社会的一个重要支柱北京邮电大学教授顾畹仪在世界范围内，一场迈向信息时代的革命正在进行。随着生产的发展和社会的进步，人们越来越迫切地要求迅速地、方便地获得和传送包括话音、图像和数据在内的各种信息，人们的生产和社会活动也正在由物质型为主向... Fiber Optic Communications ─ ─ an important pillar of the Information Society Professor Gu Guiyi of Beijing University of Posts and Telecommunications In the world, a revolution toward the information age is under way. With the development of production and social progress, there is an ever-increasing demand for quick and easy access to and transmission of various kinds of information, including voice, images and data. People’s production and social activities are also being transformed from material forms Main direction ...