Optical coupler for LIDAR sensor
US11906667B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 17, 2022 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Aug 17, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2006/12147
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A LIDAR device for a vehicle includes an integrated chip. The integrated chip includes a substrate layer, a cladding layer, a waveguide, a scattering array, and a reflector layer. The cladding layer is disposed on the substrate layer to form an interface with the substrate layer. The waveguide is disposed within the cladding layer and configured to route an infrared optical field. The scattering array is disposed within the cladding layer between the waveguide and the interface and perturbs the infrared optical field and scatters the infrared optical field into a first beam propagating toward a surface of the cladding layer and into a second beam propagating towards the interface. The reflector layer is disposed within the cladding layer between the waveguide and the surface of the cladding layer to reflect the first beam towards the interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.