WDM-PON for FTTx

Figure 1 illustrates the general FTTx (Fiber-to-the-x) architecture using a WDM-PON (Wavelength Division Multiplexed Passive Optical Network). As can be seen in the figure, this general-purpose architecture can serve multiple applications for both the business and residential customer. This functionality is possible since each end point is connected to the central office through a dedicated bidirectional optical channel. This virtual point-to-point PON architecture enables large guaranteed bandwidths, bit rate independency, protocol transparency, graceful upgradeability, high QoS with excellent security and privacy.