-
公开(公告)号：US20150266130A1
公开(公告)日：2015-09-24
申请号：US14688555
申请日：2013-10-21
发明人： Valentin Fomin , Anton Starovoytov , Andrey Abramov , Valentin Gapontsev , Artjom Fuchs , Ingo Schramm , Eugene Shcherbakov , Holger Mamerow , Andreas Michalzik
CPC分类号： B23K26/0096 , B23K26/032 , B23K26/082 , B23K26/142 , B23K26/22 , B23K26/24 , B23K26/705
摘要： A hand displaceable laser welding gun is configured with an elongated support column extending along a longitudinal axis and made from lightweight material. A support plate is displaceably mounted to the column while supporting thereon an optical head axially which is provided with optics. The optics is configured to direct a laser beam along a path towards a welding zone through a protective window of the optical head.The laser welding gun further is structured with a first arm mounted to the support plate and extending along a longitudinal axis of the gun diametrically opposite to the optical head. The inner surface of the displaceable arm has an inner surface defining a tunnel which is aligned with the optical head and axially traversed by the laser beam, a first axially flowing stream of pressurized gaseous medium, and a second axially flowing stream of gaseous medium. The second stream, entering the tunnel at a pressure lower than that one of the first stream in response to a pressure gradient generated in the column, does not generate vortexes within the column.The first and second streams exit through the downstream end of the tunnel next to the welding zone. As the streams flow out, they carry out welding debris flowing within the tunnel to the optical head.
摘要翻译： 手可移动激光焊枪配置有沿着纵向轴线延伸并由轻质材料制成的细长支撑柱。 支撑板可移动地安装到柱上，同时在其上轴向地支撑设置有光学元件的光学头。 光学器件被配置为沿着通过光学头的保护窗口的焊接区域的路径引导激光束。 激光焊枪还具有安装到支撑板并沿着与光学头直径相对的枪的纵向轴线延伸的第一臂。 可移动臂的内表面具有限定隧道的内表面，其与光学头对准并且被激光束轴向穿过，第一轴向流动的加压气体介质流和第二轴向流动的气体介质流。 响应于在塔中产生的压力梯度，以比第一流低的压力进入隧道的第二流不会在塔内产生涡流。 第一和第二物流通过隧道的下游端离开焊接区旁边。 当流流出时，它们将在隧道内流动的焊接碎片进行到光学头。
-
公开(公告)号：US10293432B2
公开(公告)日：2019-05-21
申请号：US14688555
申请日：2013-10-21
发明人： Valentin Fomin , Anton Starovoytov , Andrey Abramov , Valentin Gapontsev , Artjom Fuchs , Ingo Schramm , Eugene Shcherbakov , Holger Mamerow , Andreas Michalzik
IPC分类号： B23K26/00 , B23K26/03 , B23K26/22 , B23K26/24 , B23K26/70 , B23K26/082 , B23K26/142
摘要： A hand displaceable laser welding gun is configured with an elongated support column extending along a longitudinal axis and made from lightweight material. A support plate is displaceably mounted to the column while supporting thereon an optical head axially which is provided with optics. The optics is configured to direct a laser beam along a path towards a welding zone through a protective window of the optical head.The laser welding gun further is structured with a first arm mounted to the support plate and extending along a longitudinal axis of the gun diametrically opposite to the optical head. The inner surface of the displaceable arm has an inner surface defining a tunnel which is aligned with the optical head and axially traversed by the laser beam, a first axially flowing stream of pressurized gaseous medium, and a second axially flowing stream of gaseous medium. The second stream, entering the tunnel at a pressure lower than that one of the first stream in response to a pressure gradient generated in the column, does not generate vortexes within the column.The first and second streams exit through the downstream end of the tunnel next to the welding zone. As the streams flow out, they carry out welding debris flowing within the tunnel to the optical head.
-
公开(公告)号：US10906129B2
公开(公告)日：2021-02-02
申请号：US15573655
申请日：2016-05-26
IPC分类号： B23K26/067 , B23K26/06 , G02B6/04 , B23K26/24 , B23K26/22 , B23K26/32 , B23K26/322 , B23K26/21 , B23K101/18 , B23K101/00 , B23K101/34 , B23K103/04 , B23K103/10
摘要： The present invention provides a multi-fiber laser output system that delivers at least three fiber outputs arranged in a circumferential pattern or otherwise at least four distinct laser outputs from a single processing cable. The present invention allows for controlling the at least three laser modules and delivering their respective outputs in a pre-determined sequence in a single processing cable, thereby providing multiple processing steps on a work piece that heretofore required separate optics for each beam. The at least three laser outputs are optimized for use in creating spot welds, seam welds or virtual wobble welds when used for seam welding.
-
公开(公告)号：US09140865B1
公开(公告)日：2015-09-22
申请号：US14308176
申请日：2014-06-18
CPC分类号： G02B6/4296 , G02B3/04 , G02B6/25 , G02B6/2552 , G02B6/262 , G02B6/32 , G02B6/34 , G02B6/3853 , G02B2006/12166 , G02B2006/12192
摘要： A fiber connector system provides a pigtailed monolithic terminal block of a fiber connector configured to alter a space distribution of laser output radiation. The output facet of the pigtailed monolithic terminal block is configured to alter the divergence of an output beam allowing collimation, focusing, or any desired distribution without additional optical circuitry. The fiber connector system is operative to couple two fibers from respective different fiber devices and allows positioning additional optical components there between.
摘要翻译： 光纤连接器系统提供配置成改变激光输出辐射的空间分布的光纤连接器的尾纤单片端子块。 尾纤单片端子块的输出端被配置为改变输出光束的发散，允许准直，聚焦或任何期望的分布而没有附加的光学电路。 光纤连接器系统可操作以耦合来自相应不同光纤装置的两根光纤并允许在其间定位附加光学部件。
-
公开(公告)号：US09667023B2
公开(公告)日：2017-05-30
申请号：US14199397
申请日：2014-03-06
CPC分类号： H01S3/06708 , H01S3/005 , H01S3/0407 , H01S3/067 , H01S3/06745 , H01S3/06754 , H01S3/094007 , H01S3/094019 , H01S3/094053 , H01S3/094069 , H01S3/09408 , H01S3/09415 , H01S3/10
摘要： A high power fiber laser system includes a booster winch is configured as a fiber amplifier extending over free space, pump source and laser head including a reflective element which receives pump light and reflects toward the output end of the booster in a counter signal-propagating direction. The booster is configured with concentric and coextending frustoconically shaped (“MM”) core and cladding around the core. The core includes a mode transition region expanding between small diameter SM input and large diameter MM output core ends and configured so that amplification of high order modes is substantially suppressed as a single mode (“SM”) signal light propagates from the input to output core ends. The laser head receives output ends of respective pump light delivery fibers and signal fiber, respectively. The pump source is structured with a plurality of independent sub pumps arranged around the booster. The laser head supports a segmented mirror configured to reflect pump lights from respective pump sub-sources to the output end of the booster in a counter propagating direction, wherein the booster is configured to emit the amplified signal light reaching up to MW power levels substantially in the SM.
-
公开(公告)号：US09217840B2
公开(公告)日：2015-12-22
申请号：US14186782
申请日：2014-02-21
发明人： Valentin Fomin , Andrey Abramov , Dmitry Mochalov
CPC分类号： G02B6/4296 , G02B6/14 , G02B6/262 , G02B6/40
摘要： A high power fiber laser system is configured with a combiner end fiber spliced to a combiner output fiber. The system further includes a light stripper extending along the combiner end and output fibers and configured with sequentially located zones which are provided with respective refractive indices. In a forward propagating direction of light signal, the upstream zone includes polymeric material with the refractive index higher than that of the cladding of the combiner end fiber. This zone is configured to remove the backreflected core guided light bled into the cladding of the combiner through a splice between combiner end and output fibers. The intermediate zone includes polymeric material configured with a refractive index lower than that of the cladding of the combiner output fiber so it can prevent clad guided signal light from decoupling the cladding under the material. The downstream zone is configured with polymeric material having a refractive index lower than that of the cladding of the combiner output fiber. The polymeric material of the downstream zone is impregnated with a plurality of light diffusers scattering high numerical aperture rays of the clad-guided signal light.
摘要翻译： 高功率光纤激光器系统被配置有与组合器输出光纤接合的组合器端光纤。 该系统还包括沿着组合器端延伸并输出光纤并配置有设置有相应折射率的顺序定位的区域的光剥离器。 在光信号的向前传播方向上，上游区域包括折射率高于组合器端纤维包层的折射率的聚合材料。 该区域被配置为通过组合器端部和输出光纤之间的接合将经反射的芯引导光移除到组合器的包层中。 中间区域包括被配置为折射率低于组合器输出光纤的包层的折射率的聚合物材料，因此可以防止包层引导信号光使材料之下的包层解耦。 下游区域配置有折射率低于组合器输出光纤的包层的折射率的聚合材料。 下游区域的聚合物材料浸渍有散射包层引导信号光的高数值孔径光的多个光漫射器。
-
公开(公告)号：US20140241385A1
公开(公告)日：2014-08-28
申请号：US14186782
申请日：2014-02-21
发明人： Valentin Fomin , Andrey Abramov , Dmitry Mochalov
CPC分类号： G02B6/4296 , G02B6/14 , G02B6/262 , G02B6/40
摘要： A high power fiber laser system is configured with a combiner end fiber spliced to a combiner output fiber. The system further includes a light stripper extending along the combiner end and output fibers and configured with sequentially located zones which are provided with respective refractive indices. In a forward propagating direction of light signal, the upstream zone includes polymeric material with the refractive index higher than that of the cladding of the combiner end fiber. This zone is configured to remove the backreflected core guided light bled into the cladding of the combiner through a splice between combiner end and output fibers. The intermediate zone includes polymeric material configured with a refractive index lower than that of the cladding of the combiner output fiber so it can prevent clad guided signal light from decoupling the cladding under the material. The downstream zone is configured with polymeric material having a refractive index lower than that of the cladding of the combiner output fiber. The polymeric material of the downstream zone is impregnated with a plurality of light diffusers scattering high numerical aperture rays of the clad-guided signal light.
摘要翻译： 高功率光纤激光器系统被配置有与组合器输出光纤接合的组合器端光纤。 该系统还包括沿着组合器端延伸并输出光纤并配置有设置有相应折射率的顺序定位的区域的光剥离器。 在光信号的向前传播方向上，上游区域包括折射率高于组合器端纤维包层的折射率的聚合材料。 该区域被配置为通过组合器端部和输出光纤之间的接合将经反射的芯引导光移除到组合器的包层中。 中间区域包括被配置为折射率低于组合器输出光纤的包层的折射率的聚合物材料，因此可以防止包层引导信号光使材料之下的包层解耦。 下游区域配置有折射率低于组合器输出光纤的包层的折射率的聚合材料。 下游区域的聚合物材料浸渍有散射包层引导信号光的高数值孔径光的多个光漫射器。
-
公开(公告)号：US10951000B2
公开(公告)日：2021-03-16
申请号：US15764147
申请日：2016-09-20
发明人： Anton Ferin , Valentin Fomin , Andrey Abramov
IPC分类号： H01S3/00 , H01S3/067 , B23K26/36 , G02B6/42 , B23K26/21 , B23K26/064 , H01S3/30 , G02B6/24 , H01S3/06
摘要： A single mode (SM) high power laser system is configured with a laser source outputting a single mode or low mode kW-power light and a passive delivery fiber spliced to an output fiber of the fiber laser source and having a double bottleneck-shaped core. The latter is configured to increase a threshold for nonlinear effects in general and in particular for stimulated Raman scattering (SRS) so that the delivery passive fiber has a fiber length at least twice the length of a delivery passive fiber with a standard uniformly dimensioned core, which may be used with the same laser source, while outputting the kW-power light with an M2 factor less than 2.
-
公开(公告)号：US09435945B2
公开(公告)日：2016-09-06
申请号：US14308357
申请日：2014-06-18
IPC分类号： H01S3/30 , G02B6/036 , G02B6/02 , G02B5/00 , G02B6/24 , H01S3/00 , H01S3/067 , G02B6/12 , H01S3/094
CPC分类号： G02B6/036 , G02B5/003 , G02B6/02033 , G02B6/0208 , G02B6/14 , G02B6/243 , G02B2006/12126 , H01S3/005 , H01S3/0064 , H01S3/067 , H01S3/06754 , H01S3/094007
摘要： A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove high order modes propagating along the clad of the passive fiber. The mode absorber has a composition made from one or more liquid metals and alloys thereof which are placed in the opening formed in the sheath of the passive fiber. The composition is configured to remove from the cladding the MM light having a predetermined light power which heats the composition at a temperature lower than a threshold temperature at which the absorber may be damaged.
摘要翻译： 在大功率光纤激光系统的无源光纤上设置包层吸收单元，并且可操作地捕获和去除沿着被动光纤的包层传播的高阶模。 模式吸收器具有由一种或多种液态金属及其合金制成的组合物，其被放置在形成在无源光纤的护套中的开口中。 该组合物构造成从包层移除具有预定光功率的MM光，其在低于吸收器可能损坏的阈值温度的温度下加热组合物。
-
公开(公告)号：US20150370009A1
公开(公告)日：2015-12-24
申请号：US14308357
申请日：2014-06-18
CPC分类号： G02B6/036 , G02B5/003 , G02B6/02033 , G02B6/0208 , G02B6/14 , G02B6/243 , G02B2006/12126 , H01S3/005 , H01S3/0064 , H01S3/067 , H01S3/06754 , H01S3/094007
摘要： A clad absorber unit is provided on a passive fiber of a high power fiber laser system and operative to trap and remove high order modes propagating along the clad of the passive fiber. The mode absorber has a composition made from one or more liquid metals and alloys thereof which are placed in the opening formed in the sheath of the passive fiber. The composition is configured to remove from the cladding the MM light having a predetermined light power which heats the composition at a temperature lower than a threshold temperature at which the absorber may be damaged.
摘要翻译： 在大功率光纤激光系统的无源光纤上设置包层吸收单元，并且可操作地捕获和去除沿着被动光纤的包层传播的高阶模。 模式吸收器具有由一种或多种液态金属及其合金制成的组合物，其被放置在形成在无源光纤的护套中的开口中。 该组合物构造成从包层移除具有预定光功率的MM光，其在低于吸收器可能损坏的阈值温度的温度下加热组合物。
-
-
-
-
-
-
-
-
-
搜索结果
16 条记录 (耗时 0.019 秒)