Excimer-pumped four level blue-green solid state laser
US4284962A · kind A · utility
13Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1979 |
| Grant date | Aug 18, 1981 |
| Priority date | — |
| Expiry date | Jul 11, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/094038
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An efficient, four-level, blue-green, excimer-pumped laser which is opera at room temperature. The laser element includes a CaWO.sub.4 crystal which has been codoped with trivalent thulium activator ions and divalent ytterbium sensitizer ions. Energy is transferred from the absorbing Yb.sup.2+ ions to the Tm.sup.3+ ions and the laser transition is from the .sup.1 D.sub.2 multiplet to the ground .sup.3 F.sub.4 of the Tm.sup.3+ ion. This transition terminates on an excited state; therefore, the laser action is four-level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.