Patent · US Active

Laser amplifier

US7711025B2 · kind B2 · utility

5Cited by

4References

20Claims

0Family size

Assignee

TRUMPF Laser GmbH + Co. KG · DE

Inventors

Christian Schmitz · Wilrijk, BE
Andreas Voss · Essen, DE

Key dates

Filing date	Dec 6, 2005
Grant date	May 4, 2010
Priority date	—
Expiry date	Dec 29, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/1643
WIPO fieldOptics
WIPO sectorInstruments

Abstract

In a solid-state laser amplifier including at least two laser-active media in a common laser radiation field, the laser-active media do not form a hard aperture for the laser radiation field. Each of the laser-active media define a plane that is penetrated by the laser radiation field. The laser amplifier includes at least one focusing optical element disposed in the laser radiation field between two adjacent laser-active media. A focal length and a distance of the focusing optical element from the planes of the two adjacent laser-active media are selected such that the planes of the laser-active media are approximately mapped onto each other by a near-field far-field transformation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.