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 32
... photons , the photon energy is found to depend only on the frequency v . This frequency , in turn , must be mea- sured by observing a wave property of light . The relationship between the energy E and the frequency v of a photon is ...
... photons , the photon energy is found to depend only on the frequency v . This frequency , in turn , must be mea- sured by observing a wave property of light . The relationship between the energy E and the frequency v of a photon is ...
Page 162
... photon of energy hv12 = E2 - E1 . Normally , the system is in the group state . When a photon of energy hv12 impinges on the system , an electron in state E can absorb the photon energy and be excited to state E2 , as shown in Fig . 4 ...
... photon of energy hv12 = E2 - E1 . Normally , the system is in the group state . When a photon of energy hv12 impinges on the system , an electron in state E can absorb the photon energy and be excited to state E2 , as shown in Fig . 4 ...
Page 433
... photons is very similar to the signal - photon energy , but slightly higher . The absorption of a 1480 - nm pump photon excites an electron from the ground state directly to the lightly populated top of the metastable level , as ...
... photons is very similar to the signal - photon energy , but slightly higher . The absorption of a 1480 - nm pump photon excites an electron from the ground state directly to the lightly populated top of the metastable level , as ...
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 communication components connector core coupler coupling data rate dB/km density detector device dispersion EDFA effects electric emission emitting energy equation example factor fiber end fiber optic FIGURE frequency function gain 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 star coupler step-index fiber temperature transmission transmitted values voltage wave wavelength