You hear about fiber-optic cables whenever people talk about the telephone system, the cable TV system or the Internet. Fiber-optic lines are strands of optically pure glass as thin as a human hair that carry digital information over long distances. They are also used in medical imaging and mechanical engineering inspection.
Parts of a single optical fiber
In this article, we will show you how these tiny strands of glass transmit light and the fascinating way that these strands are made.
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