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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Electrical 3 - dB point Current ratio lout / lin Optical 3 - dB point Frequency
Electrical bandwidth 7 Optical bandwidth FIGURE 4 - 16 Frequency response of
an optical source showing the electrical and optical 3 - dB - bandwidth points .
where I ...
where Brx is the 3 - dB electrical bandwidth of the receiver and u ( t ) is the unit
step function which is 1 for 1 > 0 and 0 for 1 < 0 . The rise time trx of the receiver
is usually defined as the time interval between g ( t ) = 0 . 1 and g ( t ) = 0 . 9 . This
The wavelength resolution is determined by the bandwidth of the optical filter in
the OSA . The term resolution bandwidth describes the width of this optical filter .
Typical OSAs have selectable filters ranging from 10 nm down to 0 . 1 nm .
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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