Rapidly tuneable diode lidar
US12123830B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 2023 |
| Grant date | Oct 22, 2024 |
| Priority date | — |
| Expiry date | Oct 26, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/399
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method of operating an optical device, the method comprising tuning a first emission wavelength of a first output radiation of a laser device continuously within a first wavelength spectrum by modulating a drive current thereof with a first drive current modulation having a frequency of at least 100 KHz. The first wavelength spectrum comprises a first spectral feature associated with at least part of a gas absorption spectrum of at least one gas. The method comprises the steps of modulating the first output radiation of the laser device with a first output modulation, the first output modulation comprising a first plurality of binary pulses, scanning the first wavelength spectrum at a rate of at least 1 μm per second, projecting the first output radiation towards a first target area, receiving scattered radiation from the first target area, and processing the scattered radiation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.