二十一世纪是光子时代。实现全光网络是光纤通信技术追求的目标,目前虽然在技术上还不够成熟,经济上代价也十分昂贵,但世界领先的光通讯公司都已在这个领域开展了大量的研发工作。我国的科技工作者应该尽早进入这一高新技术领 The twenty-first century is the photon era. To achieve all-optical network is the pursuit of optical fiber communication technology goals, although the technology is not yet mature enough, the economic cost is also very expensive, but the world’s leading optical communications companies have carried out a lot of R & D work in this area. Our country’s science and technology workers should enter this high-tech collar as soon as possible