Optical Fiber Communications
The third edition of this popular text and reference book presents the fundamental principles for understanding and applying optical fiber technology to sophisticated modern telecommunication systems.
Optical-fiber-based telecommunication networks have become a major information-transmission-system, with high capacity links encircling the globe in both terrestrial and undersea installations. Numerous passive and active optical devices within these links perform complex transmission and networking functions in the optical domain, such as signal amplification, restoration, routing, and switching. Along with the need to understand the functions of these devices comes the necessity to measure both component and network performance, and to model and stimulate the complex behavior of reliable high-capacity networks.
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TABLE 12 - 6 Maximum nominal optical power per wavelength channel based on
the total optical power being + 17 dBm ( see ITU - T Recommendation G . 692 ,
Oct . 1998 , Ref . 178 ) Number of wavelengths ( channels ) Nominal power per ...
To see the effects of SRS , consider a WDM system that has N channels equally
spaced in a 30 - nm band centered at 1545 nm . Channel 0 , which is at the
lowest wavelength , is affected the worst since power gets transferred from this ...
12 - 28 for systems with four and eight wavelength channels . The curves show
the maximum power per channel as a function of the number of wavelengths for
three different channel spacings ( recall that a 125 - GHz frequency ...
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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