Laser wavelength control apparatus
US4975919A · kind A · utility
78Cited by
2References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 1988 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Nov 17, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/225
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to present invention, the central wavelength of the central wave of the output laser beam, and the sideband wave power or central wave power of the output laser beam are detected, and the wavelength selective characteristics of wavelength selective elements disposed between a laser chamber and a rear mirror are controlled such that the detected central wavelength falls within a desired allowable range and that the detected power becomes minimum or maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.