Fiber-optic cables can carry information over long distances because they have:
Less attenuation: (signal loss) Information travels roughly 10 times further before it needs amplifying—which makes fiber networks simpler and cheaper to operate and maintain.
No interference: Unlike with copper cables, there’s no “crosstalk” (electromagnetic interference) between optical fibers, so they transmit information more reliably with better signal quality
Higher bandwidth: As we’ve already seen, fiber-optic cables can carry far more data than copper cables of the same diameter.
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