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1. 发明申请

WO2013096364A8 HIGH POWER FIBER LASER SYSTEM WITH DISTRIBUTIVE MODE ABSORBER 审中-公开
标题翻译：具有分布式模式吸收器的高功率光纤激光系统
公开(公告)号：WO2013096364A8
公开(公告)日：2014-07-10
申请号：PCT/US2012070458
申请日：2012-12-19
申请人： IPG PHOTONICS CORP , GAPONTSEV VALENTIN , FOMIN VALENTIN , ABRAMOV MIKHAIL , FERIN ANTON
发明人： GAPONTSEV VALENTIN , FOMIN VALENTIN , ABRAMOV MIKHAIL , FERIN ANTON
IPC分类号： H01S3/098 , G02B6/02
CPC分类号： G02B6/03694 , G02B6/14 , H01S3/042 , H01S3/06745 , H01S3/06754 , H01S3/08045
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 modes propagating along the waveguide clad of the fiber. The mode absorber is configured with such an optimal length that the clad light may be removed in a localized manner, substantially uniformly removed over the entire length thereof. The absorber removing clad light in a unformed fashion includes a host material impregnated with diffusers.
摘要翻译：在高功率光纤激光器系统的无源光纤上设置包层吸收单元，用于捕获和去除沿着光纤的波导包层传播的模式。模式吸收器被配置有这样一个最佳长度，使得可以以局部方式去除包层光，在其整个长度上基本均匀地移除。吸收剂去除包覆光以未成型的方式包括浸渍有扩散器的主体材料。

2. 发明申请

WO2011159539A3 FIBER LASER SYSTEM CONFIGURED TO CONTROLLABLY ALIGN BEAM 审中-公开
标题翻译：光纤激光系统配置为控制对准光束
公开(公告)号：WO2011159539A3
公开(公告)日：2012-04-19
申请号：PCT/US2011039706
申请日：2011-06-09
申请人： IPG PHOTONICS CORP , GAPONTSEV VALENTIN , FOMIN VALENTIN
发明人： GAPONTSEV VALENTIN , FOMIN VALENTIN
IPC分类号： H01S3/067
CPC分类号： H01S3/005 , B23K26/043 , B23K26/066 , B23K26/705 , G02B6/4225 , G02B6/4296 , H01S3/067
摘要： The present disclosure relates to a modular fiber laser system operative to controllably guide a beam which is launched from a feeding fiber into a process fiber so that the high-aperture component is coupled and guided in cladding of the process fiber, and a low-aperture component is coupled into the core of the fiber. The laser system further has a reflective element configured with light-reflecting and light-transmitting portions. The high-aperture component at least partially decouples from the cladding into the core so that the core radiates the high-aperture and low-aperture components. The high-aperture component is incident upon the light-reflecting portion and backreflected into the process fiber so that a sensor array, which is located between the feeding and process fibers, detects the reflected light. The laser system further includes an adjustment system operatively connected to the sensor array and configured to displace the fibers relative to one another to an alignment position after the sensor array detects a maximum signal of the reflected high-aperture component.
摘要翻译：本公开涉及一种模块化光纤激光器系统，其可操作地将从馈送光纤发射的光束可控地引导到工艺光纤中，使得高光圈分量在工艺光纤的包层中耦合和引导，而低光圈组件耦合到光纤的核心。激光系统还具有配置有光反射和透光部分的反射元件。高开口部件至少部分地从包层分离到芯中，使得芯辐射高孔径和低孔径分量。高孔径分量入射到光反射部分并反射到工艺光纤中，使得位于进给光纤和处理光纤之间的传感器阵列检测反射光。激光系统还包括可操作地连接到传感器阵列并且被配置为在传感器阵列检测到反射的高孔径分量的最大信号之后将纤维相对于彼此移位到对准位置的调节系统。

3. 发明申请

WO2011031704A3 MULTIMODE FIBER 审中-公开
标题翻译：多模纤维
公开(公告)号：WO2011031704A3
公开(公告)日：2011-06-03
申请号：PCT/US2010048054
申请日：2010-09-08
申请人： IPG PHOTONICS CORP , GAPONTSEV VALENTIN , VYATKIN MICHAEL , FOMIN VALENTIN , PLATANOV NIKOLAI
发明人： GAPONTSEV VALENTIN , VYATKIN MICHAEL , FOMIN VALENTIN , PLATANOV NIKOLAI
IPC分类号： G02B6/028 , G02B6/14
CPC分类号： H01S3/06729 , G02B6/03611 , G02B6/14 , H01S3/0672 , H01S3/06737 , H01S3/06745 , H01S3/094007
摘要： A monolithic fiber is configured with a double bottleneck-shaped multimode (MM) core capable of supporting substantially only a fundamental mode at a given wavelength and having opposite end regions, frustoconically shaped transformer regions, which run inwards from the respective end regions, and a central uniformly dimensioned region, which bridges the transformer regions. The MM core has a refractive step-index profile which is configured with a centrally positioned dip having a variable width along the length of the fiber. The width of the dip is relatively small at the end regions of the MM core so as to support only the fundamental mode with a Gaussian profile. As the dip becomes larger along the input transformer region, it gradually shapes the Gaussian profile into the ring profile of the fundamental mode, which is guided along the central region of the MM core. The dip gradually becomes smaller along the output transition region so as to shape the ring profile back into the substantially Gaussian profile of the fundamental mode radiated from the output end region of the MM core. The refractive index profile has a ring area doped with one or more rare-earth elements and configured to amplify substantially only the fundamental mode.
摘要翻译：整体纤维配置有双瓶颈形多模（MM）芯体，其能够在给定波长处基本上仅支持基模，并具有相反的端部区域，从相应端区域向内延伸的截头圆锥形变压器区域，以及中心尺寸一致的区域，桥接变压器区域。 MM芯具有折射阶跃折射率分布，该折射阶跃折射率分布配置有沿着光纤的长度具有可变宽度的居中定位的凹陷。在MM核心的末端区域，倾角的宽度相对较小，以便仅支持具有高斯分布的基模。随着沿着输入变压器区域的倾角变大，它逐渐将高斯轮廓整形为基本模式的环形轮廓，其沿着MM核心的中心区域被引导。该倾角沿输出过渡区域逐渐变小，以便将环形轮廓成形回到从MM芯的输出端区域辐射的基模的基本高斯轮廓。折射率分布具有掺杂有一种或多种稀土元素的环区域，并被配置为基本上仅放大基模。

4. 发明申请

WO2014035505A3 LASER POWER SENSOR 审中-公开
标题翻译：激光功率传感器
公开(公告)号：WO2014035505A3
公开(公告)日：2014-05-22
申请号：PCT/US2013043007
申请日：2013-05-29
申请人： IPG PHOTONICS CORP , FOMIN VALENTIN , ABRAMOV ANDREY , MASHKIN ANDREI
发明人： FOMIN VALENTIN , ABRAMOV ANDREY , MASHKIN ANDREI
IPC分类号： G01J1/02
CPC分类号： G01J1/4257 , G01J1/0411 , G01J1/0422 , G01J1/0425
摘要： A sensor unit for detecting Rayleigh scattering of laser light, guided in a fiber along a light path, is configured with a holder. The holder has a U- shaped recess centered along an axis which extends transversely to the light path. The curved bottom of the recess has a matte reflective surface and is configured with such a radius of curvature that Rayleigh scattered light indicated on the bottom is collected in a focal plane of a light input window of a meter coaxial with the recess. The reflected amount of the Rayleigh scattering on the light input window is sufficient to provide a measurement data which deviates from a reference value at no more than about ±3%.
摘要翻译：用于检测沿着光路在光纤中引导的激光的瑞利散射的传感器单元被配置有保持器。保持器具有沿着横向于光路延伸的轴线居中的U形凹部。凹陷的弯曲底部具有无光泽的反射表面并且被配置为具有这样的曲率半径，其中底部指示的瑞利散射光被收集在与凹部同轴的仪表的光输入窗口的焦平面中。在光输入窗口上的瑞利散射的反射量足以提供不超过约±3％的参考值的测量数据。

5. 发明申请

WO2017105574A3 HIGH POWER SINGLE MODE FIBER LASER 审中-公开
标题翻译：高功率单模光纤激光器
公开(公告)号：WO2017105574A3
公开(公告)日：2017-08-10
申请号：PCT/US2016052626
申请日：2016-09-20
申请人： IPG PHOTONICS CORP
发明人： FERIN ANTON , FOMIN VALENTIN , ABRAMOV ANDREY
IPC分类号： H01S3/067
CPC分类号： H01S3/005 , B23K26/21 , B23K26/36 , G02B6/241 , G02B6/421 , G02B6/4296 , H01S3/06745 , H01S3/06754
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 unifomily dimensioned core, which may be used with the same laser source, while outputting the kW-power light with an M2 factor less than 2.
摘要翻译：单模（SM）高功率激光系统配置有输出单模或低模kW功率光的激光源和拼接到光纤激光源的输出光纤并具有双瓶颈形核心的无源输送光纤。后者被配置为通常并且特别是对于受激拉曼散射（SRS）增加非线性效应的阈值，使得递送无源光纤的光纤长度至少是具有标准单一尺寸芯的递送无源光纤的长度的两倍，其可以与相同的激光源一起使用，同时输出M2系数小于2的kW功率光。

6. 发明申请

WO2011068980A2 SINGLE MODE HIGH POWER FIBER LASER SYSTEM 审中-公开
标题翻译：单模高功率光纤激光系统
公开(公告)号：WO2011068980A2
公开(公告)日：2011-06-09
申请号：PCT/US2010058750
申请日：2010-12-02
申请人： IPG PHOTONICS CORP
发明人： GAPONTSEV VALENTIN , FOMIN VALENTIN , PLATANOV NIKOLAI , VYATKIN MICHAEL
IPC分类号： H01S3/067 , G02B6/02
CPC分类号： H01S3/06745 , H01S3/0672 , H01S3/06729 , H01S3/06754 , H01S3/08045 , H01S3/094019 , H01S3/094053 , H01S3/1608 , H01S3/1618
摘要： A high power single mode fiber laser system is configured with an active fiber including co extending multimode core (MM) and cladding around the MM core. The MM core is doped with one or more ions selected from rare earth and transitional metals and has a bottleneck cross in accordance with one aspect of the disclosure. The bottleneck cross- section includes a relatively small uniformly dimensioned input end region, a frustoconical region and a relatively large uniformly dimensioned amplifying region. The refractive step index of the MM core is configured with a central dip shaped and dimensioned along the input region so as not to disturb a Gaussian field profile of fundamental mode, gradually transform the Gaussian field profile into the ring profile of the fundamental mode and support the latter along the amplifying region. In accordance with a further aspect, the core is further provided with an output transforming region with the dip which gradually shapes the ring field profile in the Gaussian field profile further distortlessly supported by the output end region. A variety of end and side pumping arrangements are employed with the structures configured in accordance with the first and second aspects.
摘要翻译：高功率单模光纤激光器系统配置有主动光纤，其包括共延伸多模核（MM）和围绕MM芯的包层。掺杂有选自稀土和过渡金属的一种或多种离子的MM核，并且根据本公开的一个方面具有瓶颈交叉。瓶颈横截面包括相对小的均匀尺寸的输入端区域，截头圆锥形区域和相对较大的均匀尺寸的放大区域。 MM芯的折射阶跃指数被配置成沿着输入区域的中心浸渍形状和尺寸，以便不干扰基本模式的高斯场分布，将高斯场分布逐渐变换成基模的环形轮廓并且支撑后者沿着放大区域。根据另一方面，芯还设置有具有浸渍的输出变换区域，其逐渐地形成由输出端区域进一步失真地支持的高斯场分布中的环场分布。采用根据第一和第二方面构造的结构的各种端部和侧面泵送装置。

7. 发明申请

WO2016200621A3 MULTIBEAM LASER SYSTEM AND METHODS FOR WELDING 审中-公开
标题翻译：多波束激光系统和焊接方法
公开(公告)号：WO2016200621A3
公开(公告)日：2017-03-09
申请号：PCT/US2016034354
申请日：2016-05-26
申请人： IPG PHOTONICS CORP
发明人： SCHERBAKOV EUGENE , FOMIN VALENTIN , ABRAMOV ANDREY , YAGODKIN DIMITRI , MAMEROW HOLGER
IPC分类号： B23K26/21 , B23K26/067 , B23K26/70
CPC分类号： B23K26/22 , B23K26/0604 , B23K26/24 , B23K26/32 , B23K26/322 , B23K2201/006 , B23K2201/18 , B23K2201/34 , B23K2203/04 , B23K2203/10 , G02B6/26
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.
摘要翻译：本发明提供了一种多光纤激光输出系统，其输出至少三个以圆周图案排列的光纤输出，或另外输送来自单个处理线缆的至少四个不同的激光输出。本发明允许控制至少三个激光模块并且以预定的顺序在单个处理电缆中传送它们各自的输出，由此在工件上提供多个处理步骤，该处理步骤迄今为每个光束需要单独的光学器件。当用于缝焊时，至少三个激光输出被优化用于创建点焊，缝焊或虚拟摆动焊接。

8. 发明申请

WO2016200621A9 MULTIBEAM LASER SYSTEM AND METHODS FOR WELDING 审中-公开
标题翻译：多管激光系统及其焊接方法
公开(公告)号：WO2016200621A9
公开(公告)日：2017-02-02
申请号：PCT/US2016034354
申请日：2016-05-26
申请人： IPG PHOTONICS CORP
发明人： SCHERBAKOV EUGENE , FOMIN VALENTIN , ABRAMOV ANDREY , YAGODKIN DIMITRI , MAMEROW HOLGER
IPC分类号： B23K26/21 , B23K26/067 , B23K26/70
CPC分类号： B23K26/22 , B23K26/0604 , B23K26/24 , B23K26/32 , B23K26/322 , B23K2201/006 , B23K2201/18 , B23K2201/34 , B23K2203/04 , B23K2203/10 , G02B6/26
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.
摘要翻译：本发明提供了一种多光纤激光输出系统，其传送以圆周图案布置的至少三个光纤输出或者从单个处理电缆输送至少四个不同的激光输出。本发明允许控制至少三个激光模块并且以预定的顺序在单个处理电缆中传送它们各自的输出，从而在工件上提供多个处理步骤，此前对于每个光束需要单独的光学元件。当用于缝焊时，至少有三个激光输出被优化用于创建点焊，缝焊或虚拟摆动焊缝。

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