Solid-state laser device including uniaxial laser crystal emitting linearly polarized fundamental wave and nonlinear optical crystal emitting linearly polarized harmonic wave
US5377212A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1992 |
| Grant date | Dec 27, 1994 |
| Priority date | — |
| Expiry date | Oct 16, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/108
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A short-wavelength laser having a stable output and an optical information processing system capable of high-density recording are disclosed. A solid-state laser is used as a light source, and a nonlinear optical crystal is arranged in a resonator in order to produce a short wavelength by means of a solid-state laser. The retardation of the nonlinear optical crystal is controlled by determining the length of the nonlinear optical crystal. A solid-state laser device having a stable output with the noise removed from a pumping power light source is also provided. Further, the solid-state laser device is used as a light source for the optical information processing system, and the light of irrelevant wavelengths contained in the light from the solid-state laser device are removed by a device having the ability to select wavelengths. Thus, not only a stable light source with a short wavelength but also an optical information processing system capable of high-density recording are realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.