04-02-2010, 11:23 AM
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Optical Fiber Communications
1.0 Introduction of Optical Fiber Communications
Our current age of technology is the result of many brilliant inventions and discoveries, but it is our ability to transmit information, and the media we use to do it, that is perhaps most responsible for its evolution. Progressing from the copp cable, our increasing ability to transmit more information, more quickly and over longer distances has expanded the boundaries of our technological development in all areas. An optical fiber (or fiber that carries light along its length. overlap of applied science and engineering concerned with the design and application of optical fibers. Optical fibers are widely used in fiber optic communications, which permi longer distances and at higher bandwidths high frequency than any other form of radio signal than other forms of communications. Light is kept in the core of the optical fiber by total internal reflection. This causes the fiber to act as a waveguide. Fibers are used instead of metal wires because signals travel along them with less loss, and they are also immune to electromagnetic interference, which is caused by thunderstorm. Fibers are also used for illu wrapped in bundles so they can be used to carry images, thus allowing Fiber:- copper wire of a century ago to todayâ„¢s , fiber) is a glass or plastic fiber Fiber optics is the permits transmission over (data rates) because light has . Illumination, and are er fiber optic mination, viewing in tight spaces. Specially designed fibers are used for a variety of other applications, including sensors and fiber lasers. 2.0 History of Fiber Optic Technology:- In 1870, John Tyndall, using a jet of water that flowed from one container to another and a beam of light, demonstrated that light used internal reflection to follow a specific path. As water poured out through the spout of the first container, Tyndall directed a beam of sunlight at the path of the water. The light, as seen by the audience, followed a zigzag path inside the curved path of the water
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