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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optimized so that a given signal-to-noise ratio is maintained. The power signal-to-
noise ratio S/N at the output of an optical receiver is defined by S _ signal power
from photocurrent TV photodetector noise power + amplifier noise power The ...
For large optical signals incident on a pin photodiode, the quantum noise
associated with the signal detection process dominates, so that S _ m2Ip _ m2®
0Pr (7-107) N 4qB 4qB Since the signal-to-noise ratio in this case is independent
of the ...
9.2 CARRIER-TO-NOISE RATIO In analyzing the performance of analog systems,
one usually calculates the ratio of rms ... The analysis for analog signals is more
complex, since it sometimes depends on user perception of the signal quality, ...
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
12 other sections not shown