Patent ID: 7885543

Claim:
A system comprising: a line terminal (LT) that includes: a LT transmitter that includes a first LT tunable filter that is capable of transmitting downstream optical signals at a first wavelength, and a LT receiver that includes a second LT tunable filter that is capable of receiving upstream optical signals at a second wavelength; and one or more optical network terminals (ONTs), each ONT including: an ONT receiver that includes a first ONT tunable filter that is capable of receiving the downstream optical signals at the first wavelength, and an ONT transmitter that includes a second ONT tunable filter that is capable of transmitting the upstream optical signals at the second wavelength, where the LT transmitter and the ONT transmitter each comprise a fixed comb laser that includes an operation bandwidth range of about six nanometers to about eight nanometers, and produces four to five laser pulses, where each laser pulse is modulated from more than zero gigabits per second (Gbps) to ten Gbps.