公开(公告)号：US11331757B2

公开(公告)日：2022-05-17

申请号：US16965709

申请日：2019-02-01

申请人： Trumpf Laser UK Limited

发明人： Andrew Malinowski ,  Christophe Andre Codemard ,  Mikhail Nickolaos Zervas ,  Iain Botheroyd ,  Stephen John Keen ,  Malcolm Paul Varnham

IPC分类号： B22F3/105 ,  B23K26/06 ,  B23K26/073 ,  G02B6/14 ,  G02B6/26 ,  B23K26/342 ,  B22F3/24 ,  B23K26/38 ,  B23K26/34 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20

摘要： An apparatus for laser processing a material including an optical fibre, at least one squeezing mechanism, and a lens. The optical fibre is a multimode optical fibre in which laser radiation propagates in a first optical mode and in a second optical mode. The squeezing mechanism includes at least one periodic surface defined by a pitch. The periodic surface is located adjacent to the optical fibre. The pitch couples the first and second optical modes together. The first optical mode is defined by a first mode order. The second optical mode is defined by a second mode order which is higher than the first mode order. The squeezing mechanism squeezes the periodic surface and optical fibre together with a squeezing force thereby coupling the first optical mode to the second optical mode.

公开(公告)号：US12030134B2

公开(公告)日：2024-07-09

申请号：US16965375

申请日：2019-02-01

申请人： Trumpf Laser UK Limited

发明人： Andrew Malinowski ,  Christophe Andre Codemard ,  Mikhail Nickolaos Zervas ,  Iain Botheroyd ,  Stephen John Keen ,  Malcolm Paul Varnham

IPC分类号： B23K26/06 ,  B22F3/105 ,  B22F3/24 ,  B23K26/073 ,  B23K26/34 ,  B23K26/342 ,  B23K26/38 ,  G02B6/14 ,  G02B6/26 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20

CPC分类号： B23K26/342 ,  B22F3/105 ,  B22F3/24 ,  B23K26/0648 ,  B23K26/0734 ,  B23K26/34 ,  B23K26/38 ,  G02B6/14 ,  G02B6/268 ,  B22F2003/247 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20

摘要： Apparatus for laser processing a material (11), comprising a laser (1), an optical fibre (2), and a coupler (125), wherein: the laser (1) is connected to the optical fibre (2); the optical fibre (2) is a multimode optical fibre having a first optical mode (21) having a first mode order (24), a second optical mode (22) having a second mode order (25), and a third optical mode (23) having a third mode order (26); the third mode order (26) is higher than the second mode order (25) which is higher than the first mode order (24); the coupler (125) switches laser radiation propagating in the first optical mode (21) to laser radiation propagating in the second optical mode (22); and the coupler (125) switches the laser radiation propagating in the second optical mode (22) to laser radiation propagating in the third optical mode (23).