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 384
+P,d FIGURE 10-3 Basic star coupler concept for combining or splitting optical
powers. cores of the N output fibers through evanescent power coupling in the
fused region. Any size star coupler can be made, in principle, provided that all
fibers ...
+P,d FIGURE 10-3 Basic star coupler concept for combining or splitting optical
powers. cores of the N output fibers through evanescent power coupling in the
fused region. Any size star coupler can be made, in principle, provided that all
fibers ...
Page 387
2x2 coupler is a directional coupler. That is, no energy can be coupled into a
wave traveling backward in the negative-z direction in the driven waveguide.
Figure 10-56 shows how k varies with wavelength for the final 15-mm-long
coupler.
2x2 coupler is a directional coupler. That is, no energy can be coupled into a
wave traveling backward in the negative-z direction in the driven waveguide.
Figure 10-56 shows how k varies with wavelength for the final 15-mm-long
coupler.
Page 390
The output powers are then given by P out.l = ^out.l^utj — 5^,1 = J A) Similarly, ^
out.2 = ^out.2^ut,2 = 2^in,l = 5^*0 so that half the input power appears at each
output of the coupler. It is also important to note that when we want a large
portion ...
The output powers are then given by P out.l = ^out.l^utj — 5^,1 = J A) Similarly, ^
out.2 = ^out.2^ut,2 = 2^in,l = 5^*0 so that half the input power appears at each
output of the coupler. It is also important to note that when we want a large
portion ...
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Contents
Overview of Optical Fiber Communications | 1 |
Structures Waveguiding and Fabrication | 25 |
Signal Degradation in Optical Fibers | 91 |
Copyright | |
12 other sections not shown
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Common terms and phrases
analog attenuation avalanche photodiode band bandwidth cable carrier channel cladding communication systems components connector core coupler coupling data rate density detector device dispersion distortion EDFA effects electric emission emitting energy equation example factor fiber end fiber optic FIGURE frequency function gain Gb/s given by Eq glass graded-index fiber IEEE InGaAs input laser diode lasing layer length Lett light Lightwave Tech loss material Mb/s measured modal modal noise modes modulation multimode fibers multiplexing node nonlinear numerical aperture operating optical amplifiers optical fiber optical power optical signal optical source output power parameter percent photodetector photon pin photodiode power level propagation pulse quantum efficiency Quantum Electron radius range receiver refractive index region Reproduced with permission semiconductor shown in Fig signal-to-noise ratio simulation single-mode fibers spectral width splice step-index fiber temperature thermal noise tion transmission transmitted values voltage wave wavelength
References to this book
Bibliographic information
| Title | Optical fiber communications McGraw-Hill series in electrical and computer engineering: Communications and signal processing McGraw-Hill series in electrical and computer engineering McGraw-Hill Series in Water Resources and Environmental Engi |
| Author | Gerd Keiser |
| Edition | 3, illustrated |
| Publisher | McGraw-Hill, 2000 |
| Original from | the University of Michigan |
| Digitized | 7 Dec 2007 |
| ISBN | 0072360763, 9780072360769 |
| Length | 602 pages |
| Subjects | › › Fiber optics Optical communications Science / Physics / Optics & Light Technology & Engineering / Electrical Technology & Engineering / Electronics / General Technology & Engineering / Electronics / Optoelectronics Technology & Engineering / Engineering (General) Technology & Engineering / Fiber Optics Technology & Engineering / Imaging Systems Technology & Engineering / Optics Technology & Engineering / Telecommunications |
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