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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The ratio e of the optical energy emitted in the O pulse state to that emitted during
a 1 pulse is called the extinction ratio : ( 7 - 77 ) The extinction ratio as defined
here thus varies between 0 and 1 . Note : Equation ( 7 - 77 ) is not a universal ...
For large optical signals incident on a pin photodiode , the quantum noise
associated with the signal detection process dominates , so that s m ? l , _ m - R ,
P , ( 7 - 107 ) Ñ - 49B 49B Since the signal - to - noise ratio in this case is
In specifying the performance of an optical coupler , one usually indicates the
percentage division of optical power between the output ports by means of the
splitting ratio or coupling ratio . Referring to Fig . 10 - 4 , with Po being the input
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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