Optical Fiber CommunicationsThe 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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Page 143
... 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 . These two bands are separated by an energy gap , or band gap ...
... 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 . These two bands are separated by an energy gap , or band gap ...
Page 145
... band . Conduction occurs when electrons are excited from the valence band to this acceptor level ( so called because the impurity atoms have accepted electrons from the valence band ) . Correspondingly , the free - hole concentration ...
... band . Conduction occurs when electrons are excited from the valence band to this acceptor level ( so called because the impurity atoms have accepted electrons from the valence band ) . Correspondingly , the free - hole concentration ...
Page 148
... band electrons on the n side and valence - band holes on the p side are , thereby , allowed to diffuse across the junc- tion . Once across , they significantly increase the minority carrier concentrations , and the excess carriers then ...
... band electrons on the n side and valence - band holes on the p side are , thereby , allowed to diffuse across the junc- tion . Once across , they significantly increase the minority carrier concentrations , and the excess carriers then ...
Contents
Overview of Optical Fiber Communications | 1 |
Structures Waveguiding and Fabrication | 25 |
Structures Waveguiding and Fabrication | 26 |
Copyright | |
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Common terms and phrases
analog attenuation avalanche photodiode band bandwidth cable carrier channel cladding communication components connector core coupler coupling data rate dB/km density detector device dispersion EDFA effects electric emission emitting energy equation example factor fiber end fiber optic FIGURE frequency function gain given by Eq glass graded-index fiber IEEE InGaAs input laser diode lasing layer length Lett light Lightwave Tech loss material Mb/s modal modal noise modes modulation multimode fibers multiplexing n₁ node numerical aperture operating optical amplifiers optical fiber optical output optical power optical signal optical source output power parameter percent photodetector photon pin photodiode power level propagation pulse quantum efficiency Quantum Electron radius range receiver refractive index region semiconductor shown in Fig signal-to-noise ratio single-mode fibers spectral width splice star coupler step-index fiber temperature transmission transmitted values voltage wave wavelength