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US 11,994,716 B2Granted
Waveguide heater
AssigneeRockley Photonics Limited
InventorsJames Dongyoon Oh, Jeffrey Driscoll
Life of this patent
Estimating the term…
Abstract
An optical waveguide structure. In some embodiments, the optical waveguide structure includes a semiconductor waveguide having a waveguide ridge, and a heater. The waveguide ridge may have a varying dopant concentration across its cross-section. The heater may include a first contact and a second contact, and the waveguide structure may include a conductive path from the first contact to the second contact, the conductive path extending through a doped portion of the waveguide ridge.
Claims21
An optical waveguide structure, comprising:
- a semiconductor waveguide having a waveguide ridge, and
- a heater,
- the waveguide ridge having a varying dopant concentration across its cross-section and a doped portion extending across an optical core of the waveguide ridge,
- the heater comprising a first contact and a second contact,
- the waveguide structure comprising a conductive path from the first contact to the second contact, the conductive path extending through the doped portion of the waveguide ridge,
- wherein the conductive path is such that, when a potential difference is provided between the first and second contacts, a current flows through the optical core of the waveguide ridge.
3 more elements
Dependencies are inferred from the claim text.