Passive Optical Networks

List of Figures

Figure 1.1 Development trend of Ethernet technologies. 9

Figure 2.1 Generic structure of a modern telecommunication

network. 20

Figure 2.2 FTTx alternatives (from [1]). 21

Figure 2.3 Architecture of (a) TDM-PON and (b) WDM-PON. 22

Figure 2.4 Single-mode fiber (SMF) vs multimode fiber (MMF). 23

Figure 2.5 Dispersion coefficient as a function of wavelengths for

various types of optical fibers. 24

Figure 2.6 Loss in an optical fiber at different wavelengths. 25

Figure 2.7 (a) One-fiber single-wavelength bidirectional

transmission. (b) Near-end cross talk (NEXT). 27

Figure 2.8 Wavelength division duplex uses 1:3=1:5-mm coarse

WDM coupler (diplexer) ...