WDM PON

Thought by many to be the next thing in FTTH, WDM PON (Wave Division Multiplexing Passive Optical Network) provides the dedicated bandwidth of a point-to-point network with the fiber sharing inherent in PON networks. Not a standard today, WDM PON is not yet fully defined, but carriers and vendors expect up to 32 subscribers to be served by a single WDM PON access fiber.
The WDM PON architecture is identical to that of EPON and GPON (and their 10G versions) FTTH architectures. However, instead of a splitter, WDM PON has an Arrayed WaveGuide (AWG) filter that separates the wavelengths for individual delivery to subscriber ONTs....more