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 163
Gerd Keiser. Laser Diode Modes and Threshold 4.3.1 Conditions For optical fiber communication systems requiring bandwidths greater than approximately 200 MHz , the semiconductor injection laser diode is preferred over the LED . Laser diodes ...
Gerd Keiser. Laser Diode Modes and Threshold 4.3.1 Conditions For optical fiber communication systems requiring bandwidths greater than approximately 200 MHz , the semiconductor injection laser diode is preferred over the LED . Laser diodes ...
Page 181
... laser diode . A laser diode can readily be pulse - modulated since the photon lifetime is much smaller than the carrier lifetime . If the laser is completely turned off after each pulse , the spontaneous carrier lifetime will limit the ...
... laser diode . A laser diode can readily be pulse - modulated since the photon lifetime is much smaller than the carrier lifetime . If the laser is completely turned off after each pulse , the spontaneous carrier lifetime will limit the ...
Page 182
... laser diode . diodes makes the implementation of analog intensity modulation susceptible to both intermodulation and cross - modulation effects . This can be alleviated by using pulse code modulation or through special distortion ...
... laser diode . diodes makes the implementation of analog intensity modulation susceptible to both intermodulation and cross - modulation effects . This can be alleviated by using pulse code modulation or through special distortion ...
Contents
Overview of Optical Fiber Communications | 1 |
Structures Waveguiding and Fabrication | 25 |
Structures Waveguiding and Fabrication | 26 |
Copyright | |
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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