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光导纤维为什么要用包层
更新时间: 2020-11-03 00:00:00  

光导纤维包层能满足了纤芯高折射率全反射的条件,也避免了黄油那种不靠谱的抹法,也能保护纤芯在使用过程中全反射的条件不被破坏掉。光纤是光导纤维的简称。光纤实际是指由透明材料作成的纤芯和在它周围采用比纤芯的折射率稍低的材料作成的包层所被覆,并将射入纤芯的光信号,经包层界面反射,使光信号在纤芯中传播前进的媒体。

关键词: 光导纤维 为什么

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