Beam distributor of laser apparatus capable of efficiently introducing pumping beam into laser medium
US6697409B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 21, 2000 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Mar 1, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/09408
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A laser apparatus comprises a beam distributor to distribute a pumping beam over a laser medium. The beam distributor comprises a beam conductor having an incident surface and an intermediate surface smaller than the incident surface. The beam conductor conducts the pumping beam received by the incident surface to the intermediate surface. A main body is connected to the intermediate surface and has a plurality of surfaces and confines the pumping beam introduced through the intermediate surface by repeating total internal reflection at the surfaces. When the intermediate surface becomes small, quantity of the pumping beam escaping from the intermediate surface becomes small. The main body distributes the pumping beam confined therein over the laser medium where the laser medium is in contact with the surfaces of the main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.