Fiber Optics
By: Ben Tackett
Fiber Optics
Fiber optics are long, thin strands of very pure glass about the diameter of a human hair. They are arranged in bundles called optical cables and used to transmit light signals over long distances.
How They Work
The light in a fiber-optic cable travels through the core by constantly bouncing from the cladding (mirror-lined walls), a principle called total internal reflection. Because the cladding does not absorb any light from the core, the light wave can travel great distances at the speed of light.
Works Cited
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- Tech terms. (n.d.). Retrieved from http://www.techterms.com/definition/fiberopticcable