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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An approximate relationship for step - index fibers can be derived from ray theory
. ... However , a simpler but highly accurate approximation can be used , based
on the principle that in a typical step - index fiber the difference between the ...
In applying these approximations , we have to make a tradeoff between
computational simplicity and accuracy of the results . The simplest method is
based on a gaussian approximation . In this method , it is assumed that , when
the sequence ...
This is the signal - to - noise ratio approximation . Although the shot noise has a
Poisson distribution , the inaccuracy resulting from the gaussian approximation is
small . ? The mean and variance of the gaussian output for a 1 pulse are bon ...
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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