Ring laser cavities
US4905252A · kind A · utility
7Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1988 |
| Grant date | Feb 27, 1990 |
| Priority date | — |
| Expiry date | Sep 16, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/2036
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Diffraction limited, single narrow lobe radiation from a large area laser is achieved in a system using an external ring laser cavity to return radiation to the laser via a spatial filter and a Faraday rotator. An antireflectance coating of sufficiently small reflectivity added to the large area laser converts it into a laser amplifier which provides optical gain in a ring laser cavity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.