Optical sensor chip
US10788582B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 2018 |
| Grant date | Sep 29, 2020 |
| Priority date | — |
| Expiry date | May 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/0687
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The LIDAR chip includes a utility waveguide that guides an outgoing LIDAR signal to a facet through which the outgoing LIDAR signal exits from the chip. The chip also includes a control branch that removes a portion of the outgoing LIDAR signal from the utility waveguide. The control branch includes a control light sensor that receives a light signal that includes light from the removed portion of the outgoing LIDAR signal. The chip also includes a data branch that removes a second portion of the outgoing LIDAR signal from the utility waveguide. The data branch includes a light-combining component that combines a reference light signal that includes light from the second portion of the outgoing LIDAR signal with a comparative light signal that includes light that was reflected off an object located off of the chip.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.