Laser device capable of making a temperature distribution uniform in a slab-shaped laser medium
US5034953A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1989 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Jun 29, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1026
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a laser device for producing a laser beam along a first predetermined direction by exciting a slab-shaped laser medium by an excitation member, a reciprocating motion is carried out along a second predetermined direction transverse to the first predetermined direction and is divided into a plurality of cycles which have different amplitudes. Both edge zones of the slab-shaped laser medium are excited and heated by the excitation member during a selected one of the cycles while they are not excited during the remaining cycles. Thus, heat accumulated in the edge zones is diffused and dissipated by intermittently heating the edge zones. The slab-shaped laser medium may be reciprocated relative to the excitation member. Alternatively, the excitation member may be reciprocated relative to the slab-shaped laser medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.