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US 2021/0278742 A1Published application
Reconfigurable optical grating/coupler
AssigneeGlobalFoundries U.S. Inc.
InventorsYusheng Bian, Ajey Poovannummoottil Jacob
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Abstract
One illustrative device disclosed herein includes a lower waveguide structure and an upper body structure positioned above at least a portion of the lower waveguide structure. In this example, the device also includes a grating structure positioned in the upper body structure, wherein the grating structure comprises a plurality of grating elements that comprise a tunable material whose index of refraction may be changed by application of energy to the tunable material.
Claims20
A device, comprising:
- a lower waveguide structure;
- an upper body structure positioned above at least a portion of the lower waveguide structure;
- and
- a grating structure positioned in the upper body structure, the grating structure comprising a plurality of grating elements, the grating elements comprising a tunable material whose index of refraction may be changed by application of energy to the tunable material.
1 more element
A device, comprising:
- a lower waveguide structure;
- an upper body structure positioned above at least a portion of the lower waveguide structure;
- at least one layer of insulating material positioned between the lower waveguide structure and the upper body structure;
- and
- a grating structure positioned in the upper body structure, the grating structure comprising a plurality of grating elements, the grating elements comprising a tunable material whose index of refraction may be changed by application of energy to the tunable material and wherein, when viewed from above, at least a portion of the grating structure is positioned vertically above at least a portion of the lower waveguide structure.
2 more elements
A method for providing a reconfigurable optical grating/coupler device, comprising:
- providing a lower waveguide structure;
- providing an upper body structure positioned above at least a portion of the lower waveguide structure;
- and
- providing a grating structure positioned in the upper body structure, the grating structure comprising a plurality of grating elements, the grating elements comprising a tunable material whose index of refraction may be changed by application of energy to the tunable material.
1 more element
Dependencies are inferred from the claim text.