How Does Light Travel Through Fiber Optic Cable at Traveling

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How Does Light Travel Through Fiber Optic Cable. Although i know that the light is slowed down somewhat because it's not going through air, i've always wondered about another factor: Light travels from one end to the other of an optical fibre by total internal reflection, even when the fibre is bent.

Data communication medium (fiber optic cable) Torongo
Data communication medium (fiber optic cable) Torongo from torongoprime.com

Light travels down a fiber optic cable by bouncing off the walls of the cable repeatedly. And even though researchers are getting closer and closer to building fiber optic networks that approach the speed of light, the electromagnetic radiation traveling through undersea cables has been foiled by glass again. The light beam travels down the core of the cable.

Data communication medium (fiber optic cable) Torongo

The central part of the cable—in the middle—is called the core and that is where light travels through. Fiber cables are mostly crafted from silica, in which light travels slower. Examples of how they propagate light are shown in figure 5. An enormous amount of data can be sent.