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 61
... pulse spreads out with time as it is transmitted over the fiber . The quantity we are thus interested in is the amount of pulse spreading that arises from the group delay variation . If the spectral width of the optical source is not ...
... pulse spreads out with time as it is transmitted over the fiber . The quantity we are thus interested in is the amount of pulse spreading that arises from the group delay variation . If the spectral width of the optical source is not ...
Page 71
... pulse width Injection laser Distributed feedback laser 0.01 1.6 1.8 2.0 2.2 2.4 2.6 2.8 Index gradient , a Figure 3-17 Calculated rms pulse spreading in a graded - index fiber versus the index parameter alpha at 900 nm . The uncorrected ...
... pulse width Injection laser Distributed feedback laser 0.01 1.6 1.8 2.0 2.2 2.4 2.6 2.8 Index gradient , a Figure 3-17 Calculated rms pulse spreading in a graded - index fiber versus the index parameter alpha at 900 nm . The uncorrected ...
Page 177
... pulse spreading in the optical fiber . When a pulse is transmitted in a given time slot , most of the pulse energy will arrive in the corresponding time slot at the receiver , as shown in Fig . 7-3 . However , because of pulse spreading ...
... pulse spreading in the optical fiber . When a pulse is transmitted in a given time slot , most of the pulse energy will arrive in the corresponding time slot at the receiver , as shown in Fig . 7-3 . However , because of pulse spreading ...
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