The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2008
Filed:
Dec. 05, 2006
Maite Kumkar, Schramberg, DE;
Andreas Voss, Stuttgart, DE;
Maite Kumkar, Schramberg, DE;
Andreas Voss, Stuttgart, DE;
Trumpf Laser GmbH + Co. KG, Schramberg, DE;
Abstract
A high-power fiber laser amplifier with a laser wavelength of about 1060 to 1100 nm and an average laser power of more than about 500 W and an almost diffraction-limited beam quality (M<1.5) comprises a double-clad laser fiber that has a separate, laser-active fiber core with an outer diameter of at least 20 μm and a pump core that surrounds the fiber core and has an outer diameter of at least 50 μm, and ytterbium-doped solid state laser that emits pump light with a wavelength of approximately 1030 nm, a beam quality of M< of approximately 30 and a laser power of at least approximately 600 watts, for pumping the double-clad laser fiber.