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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^LED.step = ^(NA)2 = ^rffl0(NA)2 = ^(0.0035 cm)2[l 50 W/(cm2 • sr)](0.20)2 =
0.725 mW For the case when the fiber end-face area is smaller than the emitting
surface area, we use Eq. (5-8). Thus, the coupled power is less than the above
5.1 is based on centering a flat fiber end face directly over the light source as
close to it as possible. If the source- emitting area is larger than the fiber-core
area, then the resulting optical power coupled into the fiber is the maximum that
can be ...
If ar > a e, then all modes in the emitting fiber can be captured by the receiving
fiber. The derivations of Eqs. (5-35) to (5-37) are left as an exercise (see Probs. 5-
13 through 5-15). 5.3.3 Fiber End-Face Preparation One of the first steps that
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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