RF-excited CO.sub.2 waveguide laser with extended tuning range
US4677635A · kind A · utility
2Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 10, 1985 |
| Grant date | Jun 30, 1987 |
| Priority date | — |
| Expiry date | Oct 10, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1055
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A high pressure CO.sub.2 laser waveguide having an extended tuning range. The laser cavity is bounded by a first partially reflecting member and a second partially reflecting member, the second member comprising a reflecting mirror and a diffraction grating member used in the Littrow configuration, the grating being positioned outside the laser cavity and spaced from the second reflecting mirror a predetermined distance. The combination of the mirror and grating provides an effective grating reflectivity which is sufficient to extend the tuning range of the laser to a value not previously available.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.