Patent ID: 7016569

Claim:
A structure for unfocused guided-wave optical clock distribution, comprising: an integrated circuit device; a first cladding layer disposed on the back-side of the integrated circuit device; and a core layer disposed on the first cladding layer, the core layer including: at least one vertical-to-horizontal input diffraction grating configured to diffract a clock signal from the vertical plane to the horizontal plane in a plurality of directions, such that the clock signal is uniformly distributed through the core layer; at least one horizontal-to-horizontal diffraction grating configured to diffract the clock signal through the horizontal plane in a plurality of directions, such that the clock signal is uniformly distributed through the core layer; and at least one horizontal-to-vertical output diffraction grating configured to diffract the clock signal from the horizontal plane to the vertical plane in a plurality of directions, such that the clock signal is uniformly distributed through the core layer.