Patent ID: 8055133

Claim:
A time division multiplex (TDM)/wavelength division multiple access (WDMA) passive optical network (PON) device comprising: a base station terminal comprising: a transmitter electrically-time-division-multiplexing a plurality of downstream signals into a single high-speed electrical signal, modulating a plurality of wavelengths simultaneously with the single high-speed electrical signal, and outputting a plurality of optical signals corresponding to the plurality of wavelengths; an optical circulator transmitting the optical signals received from the transmitter to an optical distribution network and transmitting optical signals received from the optical distribution network; and a receiver demultiplexing wavelength division multiplexed upstream signals from the optical distribution network through the optical circulator, converting the demultiplexed upstream signal into a plurality of electrical signals, and delivering the electrical signals to an upper layer; a wavelength splitter splitting the downstream signals from the base station terminal to subscriber ports corresponding to wavelengths and multiplexing the optical signals received from each of the subscriber ports to the base station terminal; and a subscriber terminal optical transceiver receiving the downstream signals from the wavelength splitter and remodulating the received downstream signals to upstream signals.