Optical bridge interface with evanescent coupling
AssigneeIntel Corporation
InventorsDekang Chen, Zhichao Zhang, Feifei Cheng, Ziyin Lin, Fan Fan, Cheng Li
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Abstract
Optical couplers enable communication to and/or from PIC (Photonic Integrated Circuit). The optical couplers are manufactured at wafer-scale and provide detachable coupling to an array of optical fibers. An optical coupler includes an optical bridge, where the optical bridge includes a pair of waveguides with a first pitch at a first portion of the bridge and a second pitch at a second portion of the bridge. Soft waveguides are coupled to the pair of waveguides at the first portion of the bridge by evanescent coupling.
Claims20
An assembly comprising:
- an optical bridge comprising a first pair of waveguides at a first surface of the optical bridge, the first pair of waveguides arranged at a first pitch at a first portion of the optical bridge and a second pitch at a second portion of the optical bridge, the first pitch greater than the second pitch;
- a second pair of waveguides arranged over the first pair of waveguides at the first portion of the optical bridge, the second pair of waveguides having the first pitch;
- and
- a third pair of waveguides arranged over the first pair of waveguides at the second portion of the optical bridge, the third pair of waveguides having the second pitch.
An assembly comprising:
- an optical bridge comprising a plurality of surface waveguides formed at a first surface of the optical bridge, the plurality of surface waveguides arranged at a first pitch at a first portion of the optical bridge and tapering to a second pitch at a second portion of the optical bridge, the first pitch greater than the second pitch;
- and
- a plurality of soft waveguides over the first portion of the optical bridge, wherein one of the plurality of soft waveguides is coupled to a corresponding one of the surface waveguides by evanescent coupling.
An assembly comprising:
- an optical bridge comprising a first plurality of waveguides;
- a second plurality of waveguides over a first portion of the optical bridge, wherein a first waveguide of the first plurality of waveguides is arranged relative to a second waveguide of the second plurality of waveguides for evanescent transmission of an optical signal;
- and
- a photonic component over a second portion of the optical bridge, the photonic component comprising a third plurality of waveguides.
Dependencies are inferred from the claim text.