Laser apparatus
US7161968B2 · kind B2 · utility
1Cited by
10References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2002 |
| Grant date | Jan 9, 2007 |
| Priority date | — |
| Expiry date | Oct 1, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S2301/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a solid state, optically end-pumped laser, the laser gain medium has a tapered diameter to minimize the maximum path length of barrelling amplified stimulated emission (ASE), and a roughened surface region at one end to scatter barrelling ASE out of the gain medium; thereby minimizing the negative effective of barrelling ASE's, and inhibiting the trapping of rays with a large longitudinal component, but disallowing a cyclic, i.e. repeated, pass path with specular reflections.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.