Laser resonator with changable frequency of radiation
US4852107A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 1987 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | Apr 28, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/105
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser resonator has a semitransparent outlet mirror and a first mirror, with an active element between the mirrors, all the elements arranged perpendicular to the optical axis of the resonator. A shutter is provided behind the first mirror and a second mirror is arranged behind the shutter, perpendicular to the optical axis of the resonator. The second mirror is fully reflective for radiation with stronger laser transition and the first mirror is fully reflective for radiation with weaker laser transition and fully penetrable for radiation with stronger transition. The resonator can change frequency simply by opening or closing the shutter. It can be advantageously used, for example, in the design and construction of laser scalpels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.