Fiber Optic Cable - Definition
Fiber Optic Cable is a form of network cabling that transmits signals optically, rather than electrically as do coaxial and twisted-pair cable. The light-conducting heart of a fiber optic cable is a fine glass or plastic fiber called the core. This core is surrounded by a refractive layer called the cladding that effectively traps the light and keeps it bouncing along the central fiber. Outside both the core and the cladding is a final layer of plastic or plastic-like material called the coat, or jacket. Fiber optic cable can transmit clean signals at speeds as high as 2 Gbps. Because it transmits light, not electricity, it is also immune to eavesdropping.
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