Optical Fiber Technology
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The optical fiber concept has been around for more than a century. From the early experiments by John Tyndall in the guided transmission light, through the development of light-emitting diodes and lasers, and the emergence of dense wavelength-division multiplexing, the applications for optical fiber have continued to grow. Today, optical fiber technologies permeate a variety of industries. For instance, delivering high-definition broadcast (HDTV) at resolutions of 1080p has become possible through the deployment of fiber-to-the-curb (FTTc or FTTh) networks. Satellites transporting L-Band signals over fiber do not need to be demodulated, and also suffer less attenuation.
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DBS
Abbreviation for digital broadcast system. An alternative to cable and analog satellite reception that uses a fixed 18-inch dish focused on one or more geostationary satellites. DBS units receive multiple channels of multiplexed video and audio signals as well as programming information, and related data. Also known as digital satellite system.