What is a characteristic of a multi-mode optical fiber cable?
A. Light beams travel in a straight line through the core of the cable
B. Light beams traveling through the cable tend to attenuate after 10 KM
C. Light beams traveling inside the cable tend to disperse and collide
D. Light beams projected at the center of the cable disperse at a 9 degree angle
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Multimode fiber (MMF) cable carries multiple beams of
light projected at different angles simultaneously onto the core of the cable. In an MMF
transmission, multiple light beams traveling inside the cable tend to disperse and collide. This
collision weakens the signal strength after it travels a certain distance – a process known as
modal dispersion. Due to modal dispersion, an MMF cable is typically used for short distances,
commonly within a data center.