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

Applicant: IPG PHOTONICS CORP ,  GAPONTSEV VALENTIN ,  FOMIN VALENTIN

Inventor： GAPONTSEV VALENTIN ,  FOMIN VALENTIN

IPC: H01S3/067

CPC classification number: H01S3/005 ,  B23K26/043 ,  B23K26/066 ,  B23K26/705 ,  G02B6/4225 ,  G02B6/4296 ,  H01S3/067

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2012044285A1

公开(公告)日：2012-04-05

申请号：PCT/US2010/050626

申请日：2010-09-29

Applicant: IPG PHOTONICS CORPORATION ,  GAPONTSEV, Valentin ,  BAKER, Charlie ,  LYONS, Michael ,  SHKURIKHIN, Oleg ,  ALZAGA, Roberto ,  COLMAN, Darrell ,  FAVRE-BULLE, Sebastian

Inventor： GAPONTSEV, Valentin ,  BAKER, Charlie ,  LYONS, Michael ,  SHKURIKHIN, Oleg ,  ALZAGA, Roberto ,  COLMAN, Darrell ,  FAVRE-BULLE, Sebastian

IPC: B23K26/20 ,  B23K26/14 ,  H01S3/10 ,  H01S3/067 ,  B23K103/14

CPC classification number: B23K26/06 ,  B23K26/0622 ,  B23K26/123 ,  B23K26/22 ,  B23K26/244 ,  B23K26/32 ,  B23K2203/14

Abstract: The present invention is a method and system for reducing contamination in the resulting plasma of a weld produced by a fiber laser. The invention establishes the fiber laser in an optimal configuration for applying a high density beam to a weld material that eliminates spectral interference. The beam is applied in a narrow bandwidth of 1064 nm +/- 0.5 nm in one operative condition using an inert shielding gas, preferably argon, in a cross-flow or controlled environment around the welding region to prevent contamination of the plasma forming in the weld region. The method is optimized by determining and avoiding the emission spectrum for the fiber laser and the cover gas or gasses as well as any particular excitation spectra for the weld material. The system can utilize a single laser input, or can utilize multiple lasers joined by coupling means and utilizing a switch to select one or more of the fiber lasers.

Abstract translation: 本发明是一种减少由光纤激光器产生的焊缝产生的等离子体污染的方法和系统。 本发明将光纤激光器建立在将高密度光束施加到消除光谱干扰的焊接材料的最佳构造中。 在一个操作条件下，使用惰性保护气体，优选氩气，在焊接区域周围的交叉流动或受控环境中，以1064nm +/- 0.5nm的窄带宽施加光束，以防止在等离子体形成中的污染 焊接区域。 该方法通过确定和避免光纤激光器和覆盖气体或气体的发射光谱以及焊接材料的任何特定激发光谱来优化。 该系统可以利用单个激光输入，或者可以利用通过耦合装置连接的多个激光器，并利用开关选择一个或多个光纤激光器。

公开(公告)号：WO2011047027A2

公开(公告)日：2011-04-21

申请号：PCT/US2010/052480

申请日：2010-10-13

Applicant: IPG PHOTONICS CORPORATION ,  GAPONTSEV, Valentin ,  SERGUEEV, Vladimir ,  PLATANOV, Nikolai ,  YAGODKIN, Roman

Inventor： GAPONTSEV, Valentin ,  SERGUEEV, Vladimir ,  PLATANOV, Nikolai ,  YAGODKIN, Roman

IPC: G02B6/02

CPC classification number: G02B6/14

Abstract: Optical fiber apparatus having a wavelength of operation, that comprises an optical fiber including a core comprising an active material for providing light having the operating wavelength responsive to the optical apparatus receiving pump optical energy having a pump wavelength; a cladding disposed about the core; at least one region spaced from the core; and wherein the optical fiber is configured and arranged such that at the wavelength of operation the optical fiber can propagate a plurality of modes and wherein the optical fiber comprises a fundamental mode that is primarily a mode of the core and at least one higher order mode (HOM) that is a mixed mode of a selected mode of the core and of a selected mode of the at least one region.

Abstract translation: 具有操作波长的光纤装置，其包括光纤，该光纤包括：芯，该芯包括用于提供响应于光学装置的具有工作波长的光的活性材料，所述光学装置接收具有泵浦波长的泵浦光能; 围绕芯部设置的包层; 至少一个区域与所述芯部间隔开; 并且其中所述光纤被配置和布置成使得在所述操作波长处，所述光纤可以传播多个模式，并且其中所述光纤包括主要是所述核心的模式和至少一个更高阶模式的基本模式（ HOM），其是所述核心的所选模式和所述至少一个区域的选定模式的混合模式。

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

Applicant: IPG PHOTONICS CORP ,  GAPONTSEV VALENTIN ,  FOMIN VALENTIN ,  ABRAMOV MIKHAIL ,  FERIN ANTON

Inventor： GAPONTSEV VALENTIN ,  FOMIN VALENTIN ,  ABRAMOV MIKHAIL ,  FERIN ANTON

IPC: H01S3/098 ,  G02B6/02

CPC classification number: G02B6/03694 ,  G02B6/14 ,  H01S3/042 ,  H01S3/06745 ,  H01S3/06754 ,  H01S3/08045

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2013109902A1

公开(公告)日：2013-07-25

申请号：PCT/US2013/022161

申请日：2013-01-18

Applicant: IPG PHOTONICS CORPORATION ,  GAPONTSEV, Valentin ,  SAMARTSEV, Igor

Inventor： GAPONTSEV, Valentin ,  SAMARTSEV, Igor

IPC: H01S3/067

CPC classification number: H01S3/06708 ,  G02B6/14 ,  H01S3/06729 ,  H01S3/06745 ,  H01S3/06754 ,  H01S3/08045 ,  H01S3/094042 ,  H01S3/1611 ,  H01S3/1618 ,  H01S2301/03

Abstract: A high power fiber laser system emitting a substantially diffraction limited beam with a Gaussian intensity profile includes a single mode ("SM") neodymium fiber pump source outputting a SM pump light; a seed laser operative to emit a SM signal light at a wavelength greater than that of the pump light; a SM DWM receiving and multiplexing the SM pump and signal lights. The disclosed system further includes a booster fiber amplifier which is confiugred with a frustoconically-shaped ytterbium ("Yb") doped core receiving the pump and signal lights and configured with a small diameter input end which supports only a SM and a large diameter output end which is capable of supporting the SM and high order modes (:HOM"). The booster further has a cladding surrounding and coextending with the core, the core being configured for having intensity profiles of respective SMs of pump and signal lights overlap one another so that an overlap integral substantially equals to one (1) along an entire length of the core. The SM of the light signal extracts substantially the entire energy from the pump mode leaving the HOMs without amplification necessary to affect a quality of the diffraction limited beam of the system in a MW peak power range and hundreds of watt average power range.

Abstract translation: 发射具有高斯强度分布的基本衍射受限束的高功率光纤激光器系统包括输出SM泵浦光的单模（“SM”）钕光纤泵浦源; 种子激光器，其以大于泵浦光的波长发射SM信号光; SM DWM接收和复用SM泵和信号灯。 所公开的系统还包括一个增强光纤放大器，其与接收泵和信号灯的截头圆锥形镱（“Yb”）掺杂的核心配合，并配置有仅支持SM和大直径输出端的小直径输入端 其能够支持SM和高阶模式（：HOM“），该升压器还具有包围并与芯共同延伸的包层，所述芯被配置为具有泵和信号灯的各个SM的强度分布彼此重叠，因此 重叠积分基本上等于沿着芯的整个长度的一（1），光信号的SM从泵模式中提取基本上整个能量，留下HOM，而不需要影响衍射受限束质量的放大 该系统在MW峰值功率范围和数百瓦的平均功率范围内。

公开(公告)号：WO2011090649A2

公开(公告)日：2011-07-28

申请号：PCT/US2010/061328

申请日：2010-12-20

Applicant: IPG PHOTONICS CORPORATION ,  GAPONTSEV, Valentin ,  OVTCHINNIKOV, Alexander ,  KOMISSAROV, Alexey ,  TRUBENKO, Pavel

Inventor： GAPONTSEV, Valentin ,  OVTCHINNIKOV, Alexander ,  KOMISSAROV, Alexey ,  TRUBENKO, Pavel

CPC classification number: H01S5/2036 ,  H01S5/028 ,  H01S5/0425 ,  H01S5/1014 ,  H01S5/1064 ,  H01S2301/18

Abstract: A laser diode is configured with a substrate delimited by opposite AR and HR reflectors and a gain region. The gain region bridges the portions of the respective AR and HR reflectors and is configured with a main resonant cavity and at least one side resonant cavity. The main resonant cavity spans between the portions of the respective reflectors, and at least one additional resonant cavity extends adjacent to the main resonator cavity. The gain region is configured so that stimulated emission is generated only the main resonant cavity. Accordingly, the laser diode is operative to radiate a high-power output beam emitted through the portion of the AR reflector which is dimensioned to shape the output beam with the desired near-field.

Abstract translation: 激光二极管配置有由相对的AR和HR反射器限定的衬底和增益区域。 增益区域桥接相应AR和HR反射器的部分，并且配置有主谐振腔和至少一个侧共振腔。 主谐振腔跨越各个反射器的部分之间，并且至少一个额外的谐振腔相邻于主谐振腔延伸。 增益区域被配置为仅仅产生受激发射的主谐振腔。 因此，激光二极管可操作地辐射通过AR反射器的部分发射的大功率输出光束，其尺寸被设计成具有期望的近场的输出光束的形状。

公开(公告)号：WO2008076162A3

公开(公告)日：2008-08-21

申请号：PCT/US2007020541

申请日：2007-09-21

Applicant: IPG PHOTONICS CORP ,  GAPONTSEV VALENTIN P ,  MIKHAIL VYATKIN ,  VLADIMIR GRIGORIEV

Inventor： GAPONTSEV VALENTIN P ,  MIKHAIL VYATKIN ,  VLADIMIR GRIGORIEV

IPC: G02B6/02

CPC classification number: G02B6/02009 ,  G02B6/02361 ,  G02B6/02366 ,  G02B6/0365 ,  G02B6/03666 ,  G02B6/03688 ,  H01S3/06729 ,  H01S3/06741 ,  H01S3/0675 ,  H01S3/1618

Abstract: A large mode area optical fiber includes a large diameter core (d1 up to 60µm), and a first cladding (diameter d2) wherein the difference between refractive index (n1 ) in the core and the first cladding (n2) is very small (?n 0.4) (n3 is preferably less than 1.3). The small change in refractive index between the core and inner cladding combined with a large change in refractive index between the first cladding and second cladding provides a significantly improved single mode holding waveguide.

Abstract translation: 一个大模场面积的光纤包括一个大直径纤芯（d1直至60μm）和一个第一包层（直径d2），其中纤芯中的折射率（n1）与第一包层之间的差（n2）非常小（λ2） n <.002），因此提供非常低的数值孔径芯（NA1在0.02和0.06之间）。 优选的比率d 2 / d 1 <2。与纤芯和第一包层相比，纤维还具有第二包层，优选为空气层，其具有非常低的折射率n 3，使得第一包层具有相对高的数值 孔径（NA2> 0.4）（n3优选小于1.3）。 纤芯和内包层之间的折射率的小变化与第一包层和第二包层之间的折射率的大变化相结合提供了显着改进的单模保持波导。

公开(公告)号：WO1995010869A1

公开(公告)日：1995-04-20

申请号：PCT/IT1993000108

申请日：1993-10-13

Applicant: ITALTEL SOCIETA' ITALIANA TELECOMUNICAZIONI S.P.A. ,  IRE-POLUS CO. ,  GAPONTSEV, Valentin P. ,  SAMARTSEV, Igor

Inventor： ITALTEL SOCIETA' ITALIANA TELECOMUNICAZIONI S.P.A. ,  IRE-POLUS CO.

IPC: H01S03/06

CPC classification number: H01S3/067 ,  H01S3/06708 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/1611 ,  H01S3/1618

Abstract: A single-mode optical fiber laser is made by an optical waveguide segment (2) comprising an inner step-index single-mode waveguide, an outer multi-mode waveguide (11) surrounding the former, and a quartz cladding (12) surrounding said outer waveguide (11). Said inner waveguide (10) is doped with both Nd and Yb and comprises end mirrors (3, 4) adapted for realizing a continuous wave single-mode optical fiber laser device operating in 970-980 nm range. The device is pumped by multi-mode 800 nm GaAlAs laser diode which is coupled at one end of said waveguide segment (2).

Abstract translation: 单模光纤激光器由包括内部阶跃折射率单模波导的光波导段（2），围绕前者的外部多模式波导（11）和围绕所述第一波长的石英包层（12）制成， 外波导（11）。 所述内波导（10）掺杂有Nd和Yb，并且包括适于实现在970-980nm范围内工作的连续波单模光纤激光器件的端镜（3,4）。 该器件由耦合在所述波导段（2）的一端的多模式800nm GaAlAs激光二极管泵浦。

公开(公告)号：WO2013096368A1

公开(公告)日：2013-06-27

申请号：PCT/US2012/070463

申请日：2012-12-19

Applicant: IPG PHOTONICS CORPORATION ,  GAPONTSEV, Valentin ,  SAMARTSEV, Igor

Inventor： GAPONTSEV, Valentin ,  SAMARTSEV, Igor

IPC: H01S3/10 ,  H01S3/067

CPC classification number: H01S3/094003 ,  H01S3/06733 ,  H01S3/06745 ,  H01S3/0675 ,  H01S3/06754 ,  H01S3/094019 ,  H01S3/094042 ,  H01S3/094053 ,  H01S3/094069 ,  H01S3/0941 ,  H01S3/09415 ,  H01S3/1608 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/2375 ,  H01S2301/02

Abstract: A high power pump ultra bright low-noise source is configured with a multimode ("MM") seed source outputting a MM smooth, low-noise signal light at a wavelength λρ in a wavelength range between about 900 and 940 nm, a MM Yb fiber wavelength converter operative to convert emission of a plurality of high power ("HP"') semiconductor laser diodes at a wavelength λρ to a pump output at the desired waveiength λρ. The Yb-doped MM wavelength converter is configured with noise levels substantially identical to and lower than those of the low-noise signal light, brightness ("B") substantially equal to nxB, wherein n is a number HP semiconductor laser diodes, and B is brightness of each TIP laser diode, and output power ("Po") subsiantially equal to nPd, wherein Pd is a power of each HP laser diode, and n is the number thereof.

Abstract translation: 高功率泵超亮低噪声源配置有多模（“MM”）种子源，其输出在波长范围在约900和940nm之间的波长为兰德的MM平滑，低噪声信号光，MM Yb 光纤波长转换器，用于将波长为兰德的多个高功率（“HP”）半导体激光二极管的发射转换成所需波长长度的波导的泵输出。 Yb掺杂MM波长转换器配置有与低噪声信号光基本相同且低于低噪声信号光的噪声电平，亮度（“B”）基本上等于nxB，其中n是数量HP半导体激光二极管，B 是每个TIP激光二极管的亮度，并且输出功率（“Po”）等于nPd，其中Pd是每个HP激光二极管的功率，n是其数量。

公开(公告)号：WO2013096367A1

公开(公告)日：2013-06-27

申请号：PCT/US2012/070461

申请日：2012-12-19

Applicant: IPG PHOTONICS CORPORATION ,  GAPONTSEV, Valentin ,  FOMIN, Valentin ,  YAGODKIN, Dimitri ,  MAKAGON, Alexander

Inventor： GAPONTSEV, Valentin ,  FOMIN, Valentin ,  YAGODKIN, Dimitri ,  MAKAGON, Alexander

IPC: G02B6/38

CPC classification number: G02B6/4296 ,  G02B3/04 ,  G02B6/25 ,  G02B6/2552 ,  G02B6/262 ,  G02B6/32 ,  G02B6/34 ,  G02B6/3853 ,  G02B2006/12166 ,  G02B2006/12192

Abstract: 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 fiber's from respective different fiber devices and allows positioning additional optical components there between.

Abstract translation: 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度，允许准直，聚焦或任何期望的分布，而不需要额外的光学电路。光纤连接器系统可操作以从相应的不同光纤装置耦合两根光纤，并允许 在其间定位其他光学元件。