Patent ID: 8515285

Claim:
A communications device comprising: a transmitter device comprising an optical source configured to generate an optical carrier signal, and a modulator coupled to said optical source and configured to modulate the optical carrier signal with an input signal having a first frequency; an optical waveguide coupled to said transmitter device; and a receiver device coupled to said optical waveguide and comprising an optical splitter, a first waveguide path coupled to said optical splitter and configured to filter at least one sideband from the modulated optical carrier signal, a second waveguide path coupled to said optical splitter in parallel with said first waveguide path and configured to filter a carrier frequency band from the modulated optical carrier signal, phase modulate the carrier frequency band with a reference signal for generating a plurality of selectable sidebands, and filter a selected sideband from the plurality of selectable sidebands to generate the selected sideband from the plurality of selectable sidebands based upon the modulated optical carrier signal, and an optical-to-electrical converter coupled to said first and second waveguide paths and configured to generate an output signal comprising a replica of the input signal at a second frequency based upon the selected sideband.