What limits the distance and bandwidth capability of Multi-Mode Fiber (MMF) compared to Single-Mode Fiber (SMF)?

Answer

Modal dispersion caused by light traveling multiple paths simultaneously.

MMF's wider core allows light to travel different paths (modes); the difference in travel time between these paths spreads the light pulse out, which is known as modal dispersion.

What limits the distance and bandwidth capability of Multi-Mode Fiber (MMF) compared to Single-Mode Fiber (SMF)?

#Videos

How Fiber Optics Works - YouTube

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