In fiber optic cables, mulitmode fibers are driven by LEDs and single mode fibers are driven by lasers.

Name: In fiber optic cables, mulitmode fibers are driven by LEDs and single mode fibers are driven by lasers.
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Quizplus · Accepted Answer

Multimode fibers have a larger core diameter allowing multiple modes of light to propagate, which suits the broader light emission of LEDs. Single mode fibers, with their smaller core diameter, support a single light path and require the coherent light from lasers for optimal performance.

In Fiber Optic Cables, Mulitmode Fibers Are Driven by LEDs