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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Structures and Waveguiding
Signal Degradation in Optical Fibers
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absorption amplifier angle Appl approximately attenuation avalanche photodiode band gap bandwidth Bell Sys bias cable carrier Chap cladding coefficient communication systems components connector coupler coupling loss data rate decibels density depletion detector device distortion electric electromagnetic emission emitting energy equation fiber core fiber end fiber optic Figure frequency function given by Eq glass fibers graded-index fiber IEEE Trans input laser diodes layer Lett lifetime light source material dispersion measured method modal modulation multimode fibers numerical aperture operating optical fiber communication optical output optical power optical signal optical source optical waveguide output power parameter percent photodetector photon pin photodiode preform propagation pulse spreading quantum efficiency Quantum Electron radiation radius ratio receiver recombination refractive index refractive-index refractive-index profile region semiconductor shown in Fig silica silicon single-mode spectral width splice star coupler step-index fiber surface T-coupler technique temperature thermal noise transmitter values voltage wave wavelength