一、发掘光纤的潜在带宽能力现在人们正面临信息时代的到来，对于通信的需求量迅速增长。虽然电话仍是基本的通信方式，然而近年来众多用户对信息业务的需求远远不止于此。用户终端不仅安装了电话机，还可能有个人计算机。用户不仅需要计算机数据通信，而且需要图像和可视通信? First, explore the potential bandwidth capabilities of optical fiber People are now facing the arrival of the information age, the rapid growth in demand for communications. Although the phone is still the basic means of communication, but in recent years many users demand for information business goes far beyond this. The user terminal not only has a telephone but also a personal computer. Not only do users need computer data communications, but also image and visual communications?