Multi-mode signal LiDAR collection methods and systems
US11762062B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2021 |
| Grant date | Sep 19, 2023 |
| Priority date | — |
| Expiry date | Jan 8, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/88
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A LiDAR system emits single mode light from a photonic integrated circuit (PIC) and is capable of receiving a different mode light, or multiple modes of light, into the PIC. Objects in the LiDAR's field of view may reflect light with a mode different from the mode of the light that illuminated the objects. Thus, in some embodiments, a single-mode optical waveguide, a single-mode-multi-mode optical junction, a multi-mode optical waveguide and an array of optical emitters on the PIC are configured to emit into free space light of a single mode from each optical emitter of the array of optical emitters. The multi-mode optical waveguide and the array of optical emitters are configured to receive from the free space light of a mode different from the single mode, or multiple modes, and to couple the light of the different mode or multiple modes into the multi-mode optical waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.