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Optical Fiber Telecommunications VB, 5th Edition
book

Optical Fiber Telecommunications VB, 5th Edition

by Ivan Kaminow, Tingye Li, Alan E. Willner
July 2010
Intermediate to advanced content levelIntermediate to advanced
928 pages
33h 42m
English
Academic Press
Content preview from Optical Fiber Telecommunications VB, 5th Edition
8.1 ROADMs—A KEY COMPONENT IN THE
EVOLUTION OF OPTICAL SYSTEMS
Since optical transmission systems were first deployed there has been a constant push
to improve system reach and capacity. A high-level overview of the evolution of
optical transmission systems is shown in Figure 8.1. The development of wave length-
division multiplexing (WDM) and optical amplifiers, such as the erbium-doped
fiber amplifier (EDFA), has led to cost-effective long-haul, high-capacity systems.
Optical t ransmission has been realized over distances greater than the longest
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Publisher Resources

ISBN: 9780123741721