Multi-static and bistatic coherent LIDAR with lasers locked to a reference
US11300682B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2018 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Jan 16, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V5/222
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method for a bistatic coherent LIDAR system with lasers locked to a reference. Utilizing atomic absorption lines to lock the frequency for the bistatic system provides an absolute reference, as each of the lasers in the bistatic system would have the same frequency to within the linewidth of the frequency reference. Each laser may also be additionally locked to an optical cavity for increased frequency stability. Not only does such a system provide essentially an infinite aperture, it also reduces laser power requirements because the detector platforms could be much closer to the target than the platform that contains the laser.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.