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一、光缆的传输优点、应用方式与传输系统的组成1.光纤的传输优点光纤是由石英玻璃特制而成,并以传输光信号为目的的一种介质。光纤由于传输损耗低、带宽大、重量轻、容易铺设和材料来源丰富等特点,而成为通信、广播电视领域最重要的传输介质。自从光纤传输技术渗透到有线电视领域后,得到了普及和应用。用光纤光缆取代传统的同轴电缆作超干线、干线、支干线后,使有线电视信号高质量地传送得更远。与传统的电缆传输方式相比,光纤传输具有很多独特的优
First, the optical cable transmission advantages, applications and transmission system components 1. Optical fiber transmission advantages Optical fiber is made of quartz glass specially, and to transmit optical signals for the purpose of a medium. Due to its low transmission loss, large bandwidth, light weight, easy laying and rich material sources, optical fiber has become the most important transmission medium in the field of communications and radio and television. Since the optical fiber transmission technology has penetrated into the field of cable television, it has been popularized and applied. With optical fiber cable to replace the traditional coaxial cable for the trunk line, trunk, branch line, the cable television signal to send high quality farther. Compared with the traditional cable transmission, optical fiber transmission has many unique advantages