Optical system for lasers
US4050036A · kind A · utility
23Cited by
4References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 25, 1976 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Feb 25, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/095
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser configuration is disclosed wherein the active region is of annular cylindrical form. Zero mode azimuth coupling which produces an output beam of low obscuration ratio in the near field, thereby providing a single lobe in the far field, is achieved by the use of an unstable optical resonator characterized by an annular mirror defining one end of the resonator and a two stage axiconic reflector disposed optically between the opposite ends of the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.