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US 2026/0227572 A1Published application
Optical bus comprising a planar waveguide
AssigneeYeda Research and Development Co. Ltd.
InventorUlf LEONHARDT
Life of this patent
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Abstract
Provided herein are planar waveguides comprising a plurality of unit cells (81) or an array of unit cells which have a particular refractive index profile. This grid of unit cells, together with a reflecting structure (93) enables light to be reflected and redirected along a path within the waveguide. An optical bus is provided for multi-core processing. Methods of fabricating an array of unit cells for a planar waveguide involving depositing photoresist and thermal oxidation are also provided.
Claims22
An optical bus comprising:
- a planar waveguide comprising a light-propagating layer comprising a plurality of unit cells, wherein said unit cells have a non-uniform refractive index profile;
- a set of illumination ports configured to direct light into said light-propagating layer;
- a plurality of reflectors configured to change the direction of light propagating in the light-propagating layer at least once;
- and
- a light management system configured to selectively activate one or more illumination ports of a set of light emitters and simultaneously activate one or more illumination ports of a set of photodetectors.
2 more elements
(canceled)
21-30. (canceled)
Dependencies are inferred from the claim text.