Optical Fiber CommunicationsThe 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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Page 119
Radiance is the optical power radiated into a solid angle per unit emitting surface
area and is generally specified in terms of watts per square centimeter per
steradian . Since the optical power which can be coupled into a fiber depends on
the ...
Radiance is the optical power radiated into a solid angle per unit emitting surface
area and is generally specified in terms of watts per square centimeter per
steradian . Since the optical power which can be coupled into a fiber depends on
the ...
Page 127
20 a = 25 um 1 10 20 30 4050 Emitting area diameter ( um ) Figure 5 - 7
Theoretical coupling efficiency for a surface - emitting LED as a function of the
emitting diameter . Coupling is to a fiber with NA = 0 . 20 and radius a = 25 um .
coupling ...
20 a = 25 um 1 10 20 30 4050 Emitting area diameter ( um ) Figure 5 - 7
Theoretical coupling efficiency for a surface - emitting LED as a function of the
emitting diameter . Coupling is to a fiber with NA = 0 . 20 and radius a = 25 um .
coupling ...
Page 141
For example , optical power will be lost because of area mismatches if an
emitting fiber has a larger core diameter than the receiving fiber . 2 . The
waveguide characteristics of the fibers . For example , if an emitting fiber has a
larger numerical ...
For example , optical power will be lost because of area mismatches if an
emitting fiber has a larger core diameter than the receiving fiber . 2 . The
waveguide characteristics of the fibers . For example , if an emitting fiber has a
larger numerical ...
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Contents
Structures and Waveguiding | 12 |
Signal Degradation in Optical Fibers | 48 |
Optical Sources | 80 |
Copyright | |
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absorption active addition amplifier angle aperture applications approximately assume attenuation avalanche band bandwidth bias cable carrier characteristics cladding communication components condition consider constant core coupling defined density depends detector determined device dispersion distance distortion effects efficiency electric Electron emitting energy equal equation example expression factor field Figure frequency function gain given gives glass graded-index guided IEEE important increases input laser diodes length less light limit loss material measured mechanical method modes modulation noise occurs operating optical fiber optical power optical source output parameter percent photodetector photodiode photon propagation pulse quantum range ratio receiver referred reflection refractive region respectively response rise shown in Fig signal spectral surface technique temperature transmission transmitter values various voltage wave waveguide wavelength width York