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Q: What's the difference between multimode fiber and singlemode fiber?

A: Multimode fiber comes in 62.5 and 50-micron diameters. It is used for shorter runs, under a couple thousand feet. The light travels down the glass along multiple pathways or modes. It can accommodate up to 10 gigabit Ethernet. Singlemode has a diameter 8-microns. It is intended for longer lengths (miles). It requires a laser light since it has only one mode for the light to travel down. Singlemode has a higher transmission capacity than multimode.

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