Chip-integrated optical rotation rate sensor
US12332057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2023 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Jan 5, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An optical rotation rate sensor. The sensor includes a laser light source for generating weak light pulses, optically connected to a photonic waveguide, optically connected to a first interference coupler that includes a first input and two first outputs, optically connected to a second interference coupler that includes two second inputs and two second outputs, optically connected to at least one first sensor waveguide for showing the Sagnac effect, optically connected to a third interference coupler that includes two third inputs and two third outputs, optically connected to two photodetectors, the photonic waveguide, the first interference coupler, the second interference coupler, the third interference coupler and the sensor waveguide being integrated on a shared substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.