Patent · US Active

Method and arrangement for generating a laser beam having a differing beam profile characteristic by means of a multi-clad fiber

US8781269B2 · kind B2 · utility

60Cited by

15References

15Claims

0Family size

Assignee

TRUMPF LASER- UND SYSTEMTECHNIK GMBH · DE

Inventors

Rudolf Huber · Spaichingen, DE
Wolfgang Andreasch · Landgut Burg, DE
Martin Huonker · Rottweil, DE

Key dates

Filing date	Apr 8, 2011
Grant date	Jul 15, 2014
Priority date	—
Expiry date	Jul 8, 2031

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K2103/06
WIPO fieldOptics
WIPO sectorInstruments

Abstract

The invention concerns a method for generating a laser beam (3) with different beam profile characteristics, whereby a laser beam (2) is coupled into one fiber end (1a) of a multi-clad fiber (1), in particular a double-clad fiber, and emitted from the other fiber end (1b) of the multi-clad fiber (1) and whereby, to generate different beam profile characteristics of the output laser beam (3), the input laser beam (2) is electively coupled either at least into the inner fiber core (4) of the multi-clad fiber (1) or at least into at least one outer ring core (6) of the multi-clad fiber (1), as well as a corresponding arrangement (10).

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