Laser light source and laser projector with laser light source
US12088056B2 · kind B2 · utility
0Cited by
8References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2021 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Apr 2, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A laser light source includes a nonlinear optical medium and a pump laser source configured to generate a pump laser beam to form a signal beam and an idler beam in the nonlinear optical medium by parametric down conversion. The laser light source further includes a seed light source configured to generate a seed signal beam and/or a seed idler beam having a coherence length lesser than a coherence length of the pump laser beam, and a superpositioning device configured to superposition the seed signal beam and/or the seed idler beam with the pump laser beam for joint coupling into the nonlinear optical medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.