Study material on Optical Fiber notes( Paper Presentation Materials Projects )
An optical fiber is a thin fiber of glass or plastic that can carry light from one end to the other. The study of optical fibers is called fiber optics, which is part of applied science and engineering.Optical fibers are mainly used in telecommunications, but they are also used for lighting, sensors, toys, and special cameras for seeing inside small spaces. They are sometimes used in medicine to see inside people, like down their throat.
The main use of optical fiber is in communication (telecommunication). Fiber-optic communication transmits information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic carrier wave that is modulated to carry information. First developed in the 1970s, fiber-optic communication systems have revolutionized the telecommunications industry and have helped with the advent of the Information Age.
Early systems had short range but later ones used fibers that are more transparent. Since the light does not leak out of the fiber, the light can go a long distance before the signal gets too weak. This is used to send telephone and internet signals within and between cities. Because of its advantages over electrical transmission, optical fibers have largely replaced copper wire communications in core networks in the developed world.
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