Fiber Communication essays

Fiber Communication essays Fiber communications research mainly deals with the relationship among system architecture, technology and applications. Current activities have included sub-carrier multiplexing and coding techniques for raising the bit rate limitations of multimode fiber systems; new modulation techniques to offset the effects of dispersion and non-linearity in long distance systems; and architectures for survivable communications. Problems concerned with broadband access and interfaces between fiber systems and wireless are given specific attention at present. (Communications) The finest way to surmount distance limitations presented by copper cabling is to deploy fiber. Fiber offers many benefits to Ethernet and Fast Ethernet networks. Surmounting the restrictions of coaxial and twisted-pair copper These distances can be increased to 2,000 meters by multimode fiber and to five kilometers by single-mode fibers in half-duplex environments, and much more extension is possible in full-duplex installations. But, fiber-optic cabling is not a universal remedy. Cost of termination is one of its most important challenges. To protect the optical characteristics, splices and connections must be cautiously cut and then polished to satisfy the need for perfect connections. Legacy equipment and some critical networking equipment does not give a fiber interface is the second problem. Those that give are prohibitively expensive. Fiber can be connected to almost any legacy environment, desktop computer or networking equipment, by using copper-to-fiber media converters. The distance problems existing in copper can be prevailed over by fiber runs between the media converters and the chassis. (Media converters troubleshoot network: technology gives Internet access provider flexibility, p.45) For next generation ...