光纤电缆的物理特性与传输原理

The Physical Properties and Transmission Principle

在当今的网络系统中，特别是在大型网络系统的主干或多媒体网络应用系统中，几乎都采用光导纤维（简称光纤）作为网络传输介质。相对于其他传输介质，低损耗、高带宽和高抗干扰性是光纤的最主要的特点。在网络传输介质中，光纤的发展是最为迅速的，也将是最有前途的网络传输介质。

In today＇s network systems,especially in large backbone network system or multimedia network applications,almost all use optical fiber （referred to as fiber） as the network transmission medium.Compared to other transmission medium,low loss,high bandwidth and high noise immunity is the most important characteristics of the fiber.In the network transmission medium,optical fiber is the most rapid development,it will be the most promising network transport medium.