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 82
... carrier confinement and optical guiding . To achieve a high radiance and a high quantum efficiency , the LED structure must provide a means of confining the charge carriers and the stimulated optical emission to the active region of the ...
... carrier confinement and optical guiding . To achieve a high radiance and a high quantum efficiency , the LED structure must provide a means of confining the charge carriers and the stimulated optical emission to the active region of the ...
Page 87
... carriers are formed and recombine in pairs in accordance with the requirement for charge neutrality in the crystal . When carrier injection stops , the carrier density returns to the equilibrium value . In general , the excess carrier ...
... carriers are formed and recombine in pairs in accordance with the requirement for charge neutrality in the crystal . When carrier injection stops , the carrier density returns to the equilibrium value . In general , the excess carrier ...
Page 100
... carrier and photon lifetime parameters associated with the operation of the laser . These are the spontaneous ( radiative ) and stimulated carrier lifetimes and the photon lifetime . The spontaneous lifetime Tsp is discussed in Sec . 4 ...
... carrier and photon lifetime parameters associated with the operation of the laser . These are the spontaneous ( radiative ) and stimulated carrier lifetimes and the photon lifetime . The spontaneous lifetime Tsp is discussed in Sec . 4 ...
Contents
Structures and Waveguiding | 12 |
Signal Degradation in Optical Fibers | 48 |
Optical Sources | 80 |
Copyright | |
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absorption amplifier angle Appl attenuation avalanche photodiode band gap bandwidth Bell Sys bias cable carrier Chap cladding coefficient communication systems components connector coupler coupling coupling loss data rate dB/km decibels density 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 loss material dispersion measured method modal modulation multimode fibers n₁ n₂ numerical aperture operating optical output optical power optical signal optical source optical waveguide output power parameter percent photodetector photon pin photodiode preform propagation quantum efficiency radiation radius ratio receiver recombination refractive index refractive-index refractive-index profile semiconductor shown in Fig silica single-mode spectral width splice star coupler step-index fiber surface T-coupler technique temperature thermal noise transmitter values voltage wave wavelength