Patent ID: 7421168

Claim:
A signal channelizer comprising: an input waveguide that carries an inputted signal having a plurality of wavelengths including at least one desired wavelength; the input waveguide having an input port; a plurality of ring resonators for wavelength selection arranged in parallel and coupled along the input waveguide for receiving the inputted signal, the plurality of ring resonators passing a selected wavelength signal to an output end; an output waveguide; the output waveguide being tapped with couplers for providing a desired unmodulated carrier wave (CW) to feed the output end of the ring resonators with the desired signal; and, a detector associated with the output end of corresponding ring resonators for producing the desired channelized RF output signal representative of the desired RF band; whereby the ring resonators provide desired wavelength filtering of the inputted signal and the detectors in conjunction with optical mixing provide the channelizing of the output signal into desired RF components.