Optical device having an out-of-plane arrangement for light emission and detection
US11984526B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2020 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Dec 10, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/824
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A solid-state device, and use and formation thereof. The device includes a light emitter (102) that emits light with abeam propagation direction and includes an emitter epitaxial layer stack (940); a light routing medium (103) in optical communication with the light emitter; and a light detector (104) in optical communication with the light routing medium, which detects light emitted by the light emitter and includes a detector epitaxial stack (945). The light emitter and detector are monolithically formed on a semiconductor substrate. The emitter and detector epitaxial layer stacks include different pluralities of layers of a single epitaxial layer stack. The beam propagation direction is either in-plane with the single epitaxial layer stack and the light detector detects light out of plane with the single epitaxial layer stack, or out of plane with the single epitaxial layer stack and the light detector detects light in plane with the single epitaxial layer stack.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.