Praseodymium blue-green laser system
US4167712A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1978 |
| Grant date | Sep 11, 1979 |
| Priority date | — |
| Expiry date | Jan 31, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1653
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Improvements in Praseodymium solid state YLF lasers operating in the blueeen spectral region at room temperature and providing short pulses useful for underwater communication and detection systems. A dye laser with a narrow spectral output matched to the absorption spectra of the solid state laser is provided as a laser pump. The Pr doped YLF crystal of the solid state laser is physically oriented so it can be longitudinally pumped by light polarized parallel to the c-axis of the crystal, and the solid state laser is equipped with special spectrally selective mirrors. The foregoing and other modifications of prior Pr solid state laser systems provide increased efficiency and power output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.