Asymmetrical laser-resonator having solid-state gain-medium symmetrically filled by resonator-mode
US6282223A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 1999 |
| Grant date | Aug 28, 2001 |
| Priority date | — |
| Expiry date | Aug 11, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1603
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser includes an asymmetrical laser-resonator formed between a concave maximally-reflecting mirror and a plane output-coupling mirror. The laser-resonator includes a transversely optically-pumped gain-medium rod asymmetrically located in the laser-resonator closer to the output-coupling mirror than to the maximally-reflecting mirror. Components of the laser-resonator are configured, dependent upon the thermal-lensing coefficient of the gain-medium and optical pumping power, such that the laser-resonator operates as a stable resonator generating a multimode circulating laser-beam. The beam has a width at the maximally-reflecting mirror greater than its width at the output-coupling mirror for reducing laser-damage to the maximally-reflecting mirror. The beam symmetrically fills the gain-medium thereby providing optimum laser-energy extraction from the gain-medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.