Optical amplifier in return path of coherent lidar system
US11073618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2018 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Jan 9, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A coherent lidar system includes a light source to output a continuous wave, and a modulator to modulate a frequency of the continuous wave and provide a frequency modulated continuous wave (FMCW) signal. The system also includes an aperture lens to obtain a receive beam resulting from a reflection of an output signal obtained from the FMCW signal, and an optical amplifier in a path of the receive beam to output an amplified receive beam. A method of fabricating the system includes arranging a light source to output a continuous wave, and disposing elements to modulate the continuous wave and provide the FMCW signal. The method also includes arranging an aperture to obtain a receive beam resulting from a reflection of an output signal obtained from the FMCW signal, and disposing an optical amplifier in a path of the receive beam to output an amplified receive beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.