WDM-PON: a next-generation access network

We discuss wishes for next generation access networks and proposed and demonstrated WDM-PONs based on wavelength locked F-P LDs. These WDM-PONs guarantee color-free (or wavelength independent) operation of ONTs and OLT transceivers. The scalability of the WDM-PON is also investigated in terms of transmission length, split ratio, and transmission speed.