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电信的光纤好用吗

更新时间: 2020-10-26 00:00:00     

电信的光纤宽带从各方面参考都很不错,具体特点如下:

1、通讯容量大,光载波频率为5赫兹,,光纤的带宽为几千兆赫兹甚至更高;

2、信号损耗低,目前的实用光纤均采用纯净度很高的石英材料,在光波长为1550纳米附近,衰减可降至0.2每千米,已接近理论极限;

3、不受电磁波干扰,因为光纤为非金属的介质材料,因此它不受电磁波的干扰;

4、重量轻,由于光纤的直径很小,只有0.1毫米左右,因此制成光缆后,直径要比电缆细,而且重量也轻。

关键词: 电信 光纤

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