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some television channels or thousands of telephone
5ПОСОБИЕ ИИТиК Федорова,Мезина, Хамис 20144some television channels or thousands of telephone
5conversations in the same time. Fiber-optic technology
6have replaced copper wires for most transoceanic routes
7and in areas where large amounts of datum are sent. This
8technology uses laser transmitters for send pulses of light
9via hair-thin strands of special prepared glass fibers.
10New improvements promises cables that can transmit
11millions of telephone calls over an single fiber. Already
12fiber optic cables provides the high capacity "backbone"
13links necessary to carry from the enormous and growing
14volume to telecommunications and Internet traffic.
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