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 a negative - index waveguide , the central region of the active layer has a
lower refractive index than the outer regions . At the dielectric boundaries , part of
the light is reflected and the rest is refracted into the surrounding material and is
the active - layer thickness , since about half the light travels in the confining
layers . Such lasers can operate reliably only up to continuous - wave ( CW )
output powers of 3 – 5 mW . Here , the transverse and lateral half - power beam
VCSELs is of critical importance , since maximum reflectivity is needed for
efficient operation . 40 Figure 4 - 27 shows one mirror system that consists of a
semiconductor material , such as Si / SiO2 , as one material and an oxide layer ,
such as ...
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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