US 11,806,804 B2
Method and arrangement for generating a laser beam having a differing beam profile characteristic by a multi-clad fiber
Rudolph Huber, Aldingen-Aixheim (DE); Wolfgang Andreasch, Weinstadt (DE); and Martin Huonker, Dietingen (DE)
Assigned to TRUMPF Laser- und Systemtechnik GmbH, Ditzingen (DE)
Filed by TRUMPF Laser—und Systemtechnik GmbH, Ditzingen (DE)
Filed on Dec. 16, 2021, as Appl. No. 17/552,455.
Application 17/552,455 is a division of application No. 16/398,362, filed on Apr. 30, 2019, granted, now 11,215,761.
Application 16/398,362 is a continuation of application No. 15/279,781, filed on Sep. 29, 2016, granted, now 10,281,656, issued on May 7, 2019.
Application 15/279,781 is a continuation of application No. 14/300,138, filed on Jun. 9, 2014, granted, now 9,482,821, issued on Nov. 1, 2016.
Application 14/300,138 is a continuation of application No. 13/639,401, granted, now 8,781,269, issued on Jul. 15, 2014, previously published as PCT/EP2011/055484, filed on Apr. 8, 2011.
Claims priority of application No. 102010003750.8 (DE), filed on Apr. 8, 2010.
Prior Publication US 2022/0179153 A1, Jun. 9, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. B23K 26/064 (2014.01); B23K 26/067 (2006.01); B23K 26/073 (2006.01); G02B 6/26 (2006.01); G02B 6/35 (2006.01); G02B 6/42 (2006.01); G02B 6/036 (2006.01); G02B 6/02 (2006.01); B23K 103/06 (2006.01)
CPC B23K 26/064 (2015.10) [B23K 26/067 (2013.01); B23K 26/073 (2013.01); G02B 6/02042 (2013.01); G02B 6/03644 (2013.01); G02B 6/262 (2013.01); G02B 6/35 (2013.01); G02B 6/3508 (2013.01); G02B 6/4206 (2013.01); G02B 6/4296 (2013.01); B23K 2103/06 (2018.08)] 18 Claims
OG exemplary drawing
 
1. A system for generating a laser beam with different beam profile characteristics, comprising:
a multi-clad fiber having one inner fiber core and at least one outer ring core; and
a switchable device with at least two switch positions, the switchable device configured to couple an input laser beam into a first fiber end of the multi-clad fiber by electively coupling one of
the input laser beam into the inner fiber core of the multi-clad fiber, and
the input laser beam into the at least one outer ring core of the multi-clad fiber.