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 434
... EDFA Tap out Pump laser ( a ) Pump ΟΙ ΟΙ Signal in Signal WSC Tap EDFA Tap out ( b ) Pump laser Pump Pump ΟΙ ΟΙ Signal in Signal WSC WSC Tap Tap out EDFA Pump laser ( c ) Pump laser OI : Optical isolator WSC : Wavelength - selective ...
... EDFA Tap out Pump laser ( a ) Pump ΟΙ ΟΙ Signal in Signal WSC Tap EDFA Tap out ( b ) Pump laser Pump Pump ΟΙ ΟΙ Signal in Signal WSC WSC Tap Tap out EDFA Pump laser ( c ) Pump laser OI : Optical isolator WSC : Wavelength - selective ...
Page 561
... EDFA amplifies the signals from several different optical sources . However , since the cost and complexity of these WDM tests increase with the number of channels , a reduced - source approximation can be used for EDFA gain testing ...
... EDFA amplifies the signals from several different optical sources . However , since the cost and complexity of these WDM tests increase with the number of channels , a reduced - source approximation can be used for EDFA gain testing ...
Page 562
... EDFA output power . Thus , to measure only the signal and the ASE contribution from the EDFA , the SSE has to be eliminated from the measurement data . The three basic methods for measuring optical amplifier noise are ( 1 ) opti- cal ...
... EDFA output power . Thus , to measure only the signal and the ASE contribution from the EDFA , the SSE has to be eliminated from the measurement data . The three basic methods for measuring optical amplifier noise are ( 1 ) opti- cal ...
Contents
Overview of Optical Fiber Communications | 1 |
Structures Waveguiding and Fabrication | 25 |
Structures Waveguiding and Fabrication | 26 |
Copyright | |
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Common terms and phrases
analog attenuation avalanche photodiode band bandwidth cable carrier channel cladding components connector core coupler coupling data rate dB/km 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 modal modal noise modes modulation multimode fibers multiplexing n₁ node numerical aperture operating optical amplifiers optical fiber optical output 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 semiconductor shown in Fig signal-to-noise ratio single-mode fibers spectral width splice step-index fiber temperature transmission transmitted values voltage wave waveguide wavelength