Fiberoptics

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interactive video conferencing and other business multimedia uses" (Inman News Features 1). It's becoming possible to transmit audio, video and data signals over great distances using these fibers of pure glass or plastic.
Today, fiber optic technology has almost become a necessity in everyday business. Because fiber optics can simultaneously transmit two audio signals across a single fiber optics cable without interfering with each other (Nelson, Garat, Wong 1), many companies have changed, or are in the process of changing their connections to fiber optic cables rather than copper cables. Fiber optic cables are lighter, take up less space and are less expensive than the cumbersome copper cable that has been used previously by telephone companies and the military. Telephone companies have created international connections using optical fibers. A fiber optics communication link provides a virtually noise free medium for transporting complex signals without distortion and ...

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system of relaying messages through "optical telegraphy" was used to transmit an important message over a relay of towers 230 kilometers long (about 144 miles). (Industrial Fiber Optics 3). After optical telegraphy came the electrical telegraph. It was more cost-efficient and was, unlike the optical telegraph, effective regardless of weather and the time of day. After this advance, the idea of optical data transmission was forgotten, but not for long.
From this time until 1880, no word of optical data transmission was heard. Alexander Graham Bell changed this when he demonstrated a "Photophone". It wasn't practical, but it illustrated means of using voice (audio) to modulate a ...

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