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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In choosing a particular photodetector, we mainly need to determine the
minimum optical power that must fall on the photodetector to satisfy the bit-error
rate (BER) requirement at the specified data rate. In making this choice, the
designer also ...
This is found from the expression 0.7/Snrz where Anrz is the bit rate for the NRZ
signal. The calculated system rise time of 0.14 ns is shown at the bottom. The
system rise time, in this case, is dominated by the receiver and is well within the ...
8-5 of the transmission distance versus data rate of the following system. The
transmitter is a GaAlAs laser diode operating at 850 nm. The laser power coupled
into a fiber flylead is 0 dBm (I mW), and the source spectral width is 1 nm. The
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
12 other sections not shown