Solid state laser rod for optimizing efficiency and minimizing wave front distortion
US4912713A · kind A · utility
9Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1988 |
| Grant date | Mar 27, 1990 |
| Priority date | — |
| Expiry date | Jul 22, 2008 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/2333
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
To alleviate the adverse thermal effects of the pumping power and to increase the efficiency of the laser, a solid state laser rod is formed of a polygonal cross-section having flat, internally reflecting side surfaces extending parallel to the rod axis. A light beam applied to one end surface describes an angluar helical path within the rod to a second end surface. By passing the light beam through diverse areas of the rod, compensation for radial temperature gradients is obtained. A plurality of laser beams may traverse the rod.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.