Fiber Optics Tutorial
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From Technicians Guide to Fiber Optics, 3rd edition by D. J. Sterling. ã 2000. Reprinted with permission of Delmar Publishers, a division of Thomson Learning. Fax 800 730-2215.
The text has graciously been made available to and edited by IBSEN.
Fiber optics is an enabling technology in extending the capabilities of communications. Most importantly, it offers greater efficiencies in transmitting voice and data than the copper-cable technology it replaces. Quite simply, it carries more information farther than can be practically achieved with copper cable. An optical fiber is a hair-thin strand of glass that can propagate light for tens or hundreds of kilometers. The light can be encoded with information—data or voice. While a copper wire can be used to transmit hundreds of voice calls simultaneously, the optical fiber can carry millions. It is this impressive information-carrying capacity that makes fiber optics such an important medium of communications.
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