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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4 MODE COUPLING * In real systems , pulse distortion will increase less rapidly
after a certain initial length of fiber because of mode coupling and differential
mode loss45 , 46 In this initial length of fiber , coupling of energy from one mode
The theoretical coupling efficiency that can be achieved is based on energy and
radiance conservation principles . 14 This efficiency is usually determined by the
size of the fiber . For a fiber of radius a and numerical aperture NA , the ...
Input power Throughput power P — 0 Pa Pop P2Crosstalk LL Coupled power
Tapered region Coupling region Tapered region FIGURE 10 - 4 Cross - sectional
view of a fused - fiber coupler having a coupling region W and two tapered ...
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
14 other sections not shown