Laser-driven light source with electrodeless ignition
US11784037B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 30, 2023 |
| Grant date | Oct 10, 2023 |
| Priority date | — |
| Expiry date | Jan 30, 2043 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An electrodeless laser-driven light source includes a laser source that generates CW sustaining light. A pump laser generates pump light. A Q-switched laser crystal is positioned to receive the pump light and generates pulsed laser light in response to the generated pump light that propagates to a breakdown region in a gas filled bulb comprising an ionizing gas. A detector detects plasma light generated by a CW plasma located at least partly in a CW plasma region in the gas filled bulb comprising the ionizing gas and generates a detection signal. A controller generates control signals that control the pump light to the Q-switched laser crystal so as to extinguish the pulsed laser light within a time delay after the detection signal exceeds a threshold level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.