Patent ID: 8254784

Claim:
A light source distributor for use in a wavelength division multiplexed-passive optical network, wherein the light source distributor receives an A band and a B band injection optical signals through a single optical terminal from an injection light source for outputting both the A band and the B band injection optical signals; transmits the A band injection optical signal to a first optical multiplexer/demultiplexer of a central office and the B band injection signal to a second optical multiplexer/demultiplexer of a remote node; transmits a wavelength-locked A band optical signal received from the first optical multiplexer/demultiplexer to the second optical multiplexer/demultiplexer; and transmits a wavelength-locked B band optical signal received from the second optical multiplexer/demultiplexer to the first optical multiplexer/demultiplexer, wherein the light source distributor includes: an A-band pass/B-band reflection filter for receiving the A band and the B band injection optical signals from the injection light source, passing the A band injection optical signal toward the first optical multiplexer/demultiplexer and reflecting the B band injection optical signal toward the second optical multiplexer/demultiplexer; and an A/B band wavelength mux/demux filter having an A band terminal, a B band terminal and a common band terminal, wherein the A/B band wavelength mux/demux filter outputs the optical signal inputted from the A band terminal or the B band terminal to the common band terminal; outputs the A band optical signal inputted from the common band terminal to the A band terminal; and outputs the B band optical signal inputted from the common band terminal to the B band terminal, and wherein the A band terminal is connected to the A-band pass/B-band reflection filter; the B band terminal is connected to the second optical multiplexer/demultiplexer; and the common band terminal is connected to the first optical multiplexer/demultiplexer.