在全球信息载体方面，光技术已占有优势。为了满足社会需求，未来的网络将以光通信为中心。例如，光技术对传送任何类型业务，带宽基本上不受限制，在终端上就能扩大容量的全透明性和灵活性的信道路由等，这些都是不能被其它技术所替代的一些关键特性。总之，对这些网络的所有必要的部件均已进行试验，并已快速推向应用领域。当步入２０００～３０００年，这将使通信性质发生变化。 Optical technology has advantages in the global information carrier. In order to meet the needs of society, the future of the network will be optical communications as the center. For example, optical technologies have virtually unlimited bandwidth for delivering any type of service, and are capable of expanding the capacity of full transparency and flexible channel routing at the terminals, all of which are key features that can not be superseded by other technologies. In summary, all the necessary components of these networks have been tested and are rapidly being used in applications. As we move into 2000-3000, this will change the nature of communications.