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 conduction properties can be interpreted with the aid of the energy - band
diagrams shown in Fig . 4 - la . In a pure crystal at low temperatures , the
conduction band is completely empty of electrons and the valence band is
completely full .
electron concentration in the conduction band , as shown in Fig . 4 - 26 . Since in
this type of material the current is carried by ( negative ) electrons ( because the
electron concentration is much higher than that of holes ) , it is called n - type ...
Conduction - band electrons on the n side and valence - band holes on the p
side are , thereby , allowed to diffuse across the junction . Once across , they
significantly increase the minority carrier concentrations , and the excess carriers
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
14 other sections not shown