Patent · US Active

Pump radiation arrangement and method for pumping a laser-active medium

US9331451B2 · kind B2 · utility

0Cited by

5References

16Claims

0Family size

Assignee

TRUMPF LASER GMBH · DE

Inventors

Dirk Sutter · Mountain View, US
Alexander Killi · Trossingen, DE
Jochen Kleinbauer · Deißlingen, DE
Yufeng Li · Morrisville, US

Key dates

Filing date	Sep 30, 2014
Grant date	May 3, 2016
Priority date	—
Expiry date	Sep 30, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01S5/146
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The disclosure relates to a pump radiation arrangement comprising: a pump radiation source for producing pump radiation, a means for stabilizing the wavelength of the pump radiation source and a laser-active medium through which the pump radiation passes in a bidirectional manner. The pump radiation arrangement also has a retro-reflector for reflecting pump radiation which is not absorbed by the laser-active medium back to the pump radiation source and a wavelength-selective element for preventing a wavelength destabilization of the pump radiation source by filtering out undesirable spectral portions of pump radiation which is not absorbed by the laser-active medium. The invention also relates to an associated method for pumping a laser-active medium.

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