Fabry-Perot cavity phase modulator including a tunable core, an optical modulating device including the same, and a lidar apparatus including the optical modulating device
US11835626B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 19, 2022 |
| Grant date | Dec 5, 2023 |
| Priority date | — |
| Expiry date | Sep 19, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/30
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are an optical modulating device and a system including the optical modulating device. The optical modulating device includes a substrate, and a phase modulator formed on the substrate and including a Fabry-Perot cavity. The Fabry-Perot cavity of the phase modulator includes a first reflective layer, a second reflective layer, and a tunable core formed between the first reflective layer and the second reflective layer, wherein the tunable core is formed of a semiconductor material and is configured to modulate a phase of light corresponding to modulation of a refractive index of the tunable core according to electrical control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.