Patent ID: 8565608
Filing Date: 2013-10-22
Classification: G02B,H04J,H04Q

Abstract:
1. A multi-chip module (MCM), comprising: integrated circuits configured to receive optical signals from a set of light sources, which have fixed carrier wavelengths, 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 one of the carrier wavelengths when 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; switchable drop filters optically coupled to the second optical waveguides and associated integrated circuits, wherein the switchable drop filters are configured to pass adjustable bands of wavelengths to receivers in the integrated circuits, and wherein a given adjustable band of wavelengths of a given switchable drop filter associated with the given integrated circuit includes one of: a given carrier wavelength and another wavelength; and control logic configured to provide a control signal to the switchable drop filters to specify the adjustable bands of wavelengths, 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.