Laser device
US9071034B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 2012 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Jul 19, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/041
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention relates to a laser device comprising at least three linear laser gain volumes (12) for a gas to be excited, connecting elements (20) for connecting adjacent laser gain volumes, the laser gain volumes being mechanically coupled to other, and forming a common volumetric space, excitation means (50) for the laser gain volumes for exciting the gas in the laser gain volumes for generating a laser light, mirrors (22) arranged in the connecting elements for reflecting laser light between the laser gain volumes, a totally reflecting rear mirror (44), and a partially reflecting output coupler (42) for coupling out a laser beam. The laser gain volumes are arranged in the shape of an open or closed ring surrounding a free central space (8) between them. The invention also relates to a method for marking an object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.