"Introduction". In: Fiber-Optic Communication Systems
42 CHAPTER 2. OPTICAL FIBERS Figure 2.10: Total dispersionDand relative contributions of material dispersionDMand wave- guide di ...
2.3. DISPERSION IN SINGLE-MODE FIBERS 43 Figure 2.11: Typical wavelength dependence of the dispersion parameterDfor standard, di ...
44 CHAPTER 2. OPTICAL FIBERS Table 2.1 Characteristics of several commercial fibers Fiber Type and Aeff λZD D(C band) SlopeS Tra ...
2.4. DISPERSION-INDUCED LIMITATIONS 45 frequency component associated with an optical pulse through the entire fiber length is t ...
46 CHAPTER 2. OPTICAL FIBERS width is dominated by the spectrum of the optical source. In general, the extent of pulse broadenin ...
2.4. DISPERSION-INDUCED LIMITATIONS 47 whereA ̃( 0 ,∆ω)≡B ̃( 0 ,ω)is the Fourier transform ofA( 0 ,t). By calculating∂A/∂zand no ...
48 CHAPTER 2. OPTICAL FIBERS The spectral half-width (at 1/eintensity point) is given by ∆ω 0 =( 1 +C^2 )^1 /^2 T 0 −^1. (2.4.14 ...
2.4. DISPERSION-INDUCED LIMITATIONS 49 Figure 2.12: Variation of broadening factor with propagated distance for a chirped Gaussi ...
50 CHAPTER 2. OPTICAL FIBERS condition is not always satisfied in practice. To account for the source spectral width, we must tr ...
2.4. DISPERSION-INDUCED LIMITATIONS 51 where Eq. (2.3.13) was used to relateβ 3 to the dispersion slopeS. The output pulse width ...
52 CHAPTER 2. OPTICAL FIBERS Figure 2.13: Limiting bit rate of single-mode fibers as a function of the fiber length forσλ=0, 1, ...
2.4. DISPERSION-INDUCED LIMITATIONS 53 Figure 2.14: Dispersion-limitedBLproduct as a function of the chirp parameter for Gaussia ...
54 CHAPTER 2. OPTICAL FIBERS provides the frequency response and is called thetransfer function. In general,|H(f)| falls off wit ...
2.5. FIBER LOSSES 55 The limiting bit rate can be related tof3dBby using Eq. (2.4.28) and is given by B≤ 0. 574 f3dB. Again, the ...
56 CHAPTER 2. OPTICAL FIBERS Figure 2.15: Loss spectrum of a single-mode fiber produced in 1979. Wavelength dependence of severa ...
2.5. FIBER LOSSES 57 Dispersion Conventional Fiber Dry Fiber Figure 2.16: Loss and dispersion of the AllWave fiber. Loss of a co ...
58 CHAPTER 2. OPTICAL FIBERS where the constantCis in the range 0.7–0.9 (dB/km)-μm^4 , depending on the con- stituents of the fi ...
2.6. NONLINEAR OPTICAL EFFECTS 59 wavelength. Many other sources of optical loss exist in a fiber cable. These are related to sp ...
60 CHAPTER 2. OPTICAL FIBERS viewed as scattering of the pump wave from this acoustic wave, resulting in creation of a new wave ...
2.6. NONLINEAR OPTICAL EFFECTS 61 Figure 2.17: Brillouin-gain spectra measured using a 1.525-μm pump for three fibers with dif- ...
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