Patent ID: 8606113

Claim:
A multi-chip module (MCM), comprising: integrated circuits configured to receive optical signals from a set of tunable light sources, wherein a given integrated circuit includes: a transmitter configured to modulate at least one of the optical signals when transmitting information to at least another of the integrated circuits; and a receiver configured to receive at least one modulated optical signal having a given carrier wavelength associated with the given integrated circuit during a time of receiving information from at least the other of the integrated circuits; first optical waveguides, optically coupled to the integrated circuits, to convey modulated optical signals from transmitters in the integrated circuits; second optical waveguides, optically coupled to the first optical waveguides, to convey the modulated optical signals to receivers in the integrated circuits; and control logic configured to provide a control signal to the set of tunable light sources to specify carrier wavelengths in the optical signals output by the set of tunable light sources, thereby defining routing of at least the one of the optical signals in the MCM during communication between at least a pair of the integrated circuits.