Fiber Optic Cable

An optical fiber is a flexible, transparent fiber used to transmit light or electromagnetic signal between the two places. We use it in fiber-optic communications for the transmission of information over shorter or longer distances. Fibers are used instead of metal wires. Optical fiber carries much more information than conventional copper wire. It is in general not subject to electromagnetic interference. Most telephone company long-distance lines are now made of optical fibers. The glass fiber requires more protection within an outer cable than copper. A type of fiber known as single mode fiber is used for longer distances, multimode fiber is used for shorter distances. Fiber optic cable usually consists of a core, cladding, coating, strengthening fibers, and cable jacket. The core is a single continuous strand of glass or plastic that's measured in microns by the size of its outer diameter. Cladding is a thin layer that surrounds the fiber core and serves as a boundary that contains the light waves and causes the refraction. Coating is a layer of plastic that surrounds the core and cladding to reinforce the fiber core. It provides extra protection against excessive cable bends. Next components help to protect the core against crushing forces and excessive tension. The outer layer of any cable is called cable jacket.