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 ...
Laser action is the result of three key processes : photon absorption ,
spontaneous emission , and stimulated emission . These three processes are
represented by the simple two - energy - level diagrams in Fig . 4 - 17 , where Ej
is the ground ...
In normal operation , a pump laser emitting 980 - nm photons is used to excite
ions from the ground state to the pump level , as shown by ... The energy of these
pump photons is very similar to the signal - photon energy , but slightly higher .
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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