“八五”国家重点科技攻关项目———光通信成果简介邮电部科技司姜涌光纤通信是世界各国竞相发展的高新技术产业．８０年代末，国际上光通信领域技术正朝着高速率、密集型波分复用方向发展．特别是同步数字系列（ＳＤＨ）光通信技术的出现，把光通信概念从点到点通信延伸... Brief Introduction of Achievements in Optical Communication of the Eighth Five-Year Plan Period ---- Achievements in Optical Communication Jiang Yong, Ministry of Science and Technology, Ministry of Posts and Telecommunications, is a high-tech industry competing in various countries in the world. In the late 1980s, the technology in the field of optical communication in the world was moving towards high-rate and intensive wavelength division multiplexing. Especially the emergence of Synchronous Digital Hierarchy (SDH) optical communication technology extends the concept of optical communication from point to point ...