Solid-state laser device capable of generating a harmonic laser beam at a high conversion efficiency
US5130996A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1990 |
| Grant date | Jul 14, 1992 |
| Priority date | — |
| Expiry date | Nov 30, 2010 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1666
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a solid-state laser device comprising, as a solid-state laser medium, a nonlinear optical crystal, such as Nd.sub.x Y.sub.1-x Al.sub.3 (BO.sub.3).sub.4, which generates a primary laser beam of a fundamental wavelength and which can convert the primary laser beam into a subsidiary laser beam of a harmonic wavelength, a pair of optical elements is brought into contact with both ends of the solid-state laser medium to form a resonator for the primary laser beam. The optical elements may be composed of optical thin films or reflectors attached to the ends of the medium. At least one of the ends of the medium has a spherical surface convex outwards of the medium so as to reflect the primary laser beam into the medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.