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 particle nature arises from the observation that light energy is always emitted
or absorbed in discrete units called quanta or photons. In all experiments used to
show the existence of photons, the photon energy is found to depend only on ...
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
These three processes are represented by the simple two-energy-level diagrams
in Fig. 4-17, where E\ is the ground-state energy and Ei is the excited-state
energy. According to Planck's law, a transition between these two states involves
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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