公开(公告)号：US20050094250A1

公开(公告)日：2005-05-05

申请号：US10766224

申请日：2004-01-28

Applicant: C. Dane ,  Lloyd Hackel ,  Fritz Harris

Inventor： C. Dane ,  Lloyd Hackel ,  Fritz Harris

IPC: C21D10/00 ,  H01S3/05 ,  H01S3/10 ,  H01S3/30 ,  H01S3/00

CPC classification number: H01S3/2333 ,  C21D10/005 ,  H01S3/10076 ,  H01S3/305

Abstract: A laser system includes an optical path having an intracavity relay telescope with a telescope focal point for imaging an output of the gain medium between an image location at or near the gain medium and an image location at or near an output coupler for the laser system. A kinematic mount is provided within a vacuum chamber, and adapted to secure beam baffles near the telescope focal point. An access port on the vacuum chamber is adapted for allowing insertion and removal of the beam baffles. A first baffle formed using an alignment pinhole aperture is used during alignment of the laser system. A second tapered baffle replaces the alignment aperture during operation and acts as a far-field baffle in which off angle beams strike the baffle a grazing angle of incidence, reducing fluence levels at the impact areas.

Abstract translation: 激光系统包括具有腔内中继望远镜的光路，其具有望远镜焦点，用于在增益介质附近或附近的图像位置与激光系统的输出耦合器处或附近的图像位置成像增益介质的输出。 运动支架设置在真空室内，并适用于将望远镜焦点附近的光束挡板固定。 真空室上的入口适于允许光束挡板的插入和移除。 在激光系统对准期间使用使用对准针孔孔形成的第一挡板。 第二锥形挡板在操作期间取代了对准孔，并且用作远场挡板，其中偏转角射束将挡板撞击入射角，从而降低冲击区域的通量水平。

公开(公告)号：US20070024955A1

公开(公告)日：2007-02-01

申请号：US11383352

申请日：2006-05-15

Applicant: C. Dane ,  Lloyd Hackel ,  Fritz Harris

Inventor： C. Dane ,  Lloyd Hackel ,  Fritz Harris

IPC: H01S3/00

CPC classification number: H01S3/10076 ,  B23K26/356 ,  H01S3/0606 ,  H01S3/08095 ,  H01S3/0813 ,  H01S3/083 ,  H01S3/2333 ,  H01S3/305 ,  H01S3/307

Abstract: A laser system, such as a master oscillator/power amplifier system, comprises a gain medium and a stimulated Brillouin scattering SBS mirror system. The SBS mirror system includes an in situ filtered SBS medium that comprises a compound having a small negative non-linear index of refraction, such as a perfluoro compound. An SBS relay telescope having a telescope focal point includes a baffle at the telescope focal point which blocks off angle beams. A beam splitter is placed between the SBS mirror system and the SBS relay telescope, directing a fraction of the beam to an alternate beam path for an alignment fiducial. The SBS mirror system has a collimated SBS cell and a focused SBS cell. An adjustable attenuator is placed between the collimated SBS cell and the focused SBS cell, by which pulse width of the reflected beam can be adjusted.

Abstract translation: 诸如主振荡器/功率放大器系统的激光系统包括增益介质和受激布里渊散射SBS镜系统。 SBS镜系统包括原位过滤的SBS培养基，其包含具有小的负非线性折射率的化合物，例如全氟化合物。 具有望远镜焦点的SBS中继望远镜包括在望远镜焦点处的挡板，其阻挡角度横梁。 分束器放置在SBS镜系统和SBS中继望远镜之间，将一小部分光束引导到用于对准基准的交替光束路径。 SBS镜像系统具有准直的SBS单元和聚焦的SBS单元。 可调节的衰减器放置在准直的SBS单元和聚焦的SBS单元之间，由此可以调整反射光束的脉冲宽度。

公开(公告)号：US20050094256A1

公开(公告)日：2005-05-05

申请号：US10766635

申请日：2004-01-28

Applicant: C. Dane ,  Lloyd Hackel ,  Fritz Harris

Inventor： C. Dane ,  Lloyd Hackel ,  Fritz Harris

IPC: H01S3/06 ,  H01S3/081 ,  H01S3/083 ,  H01S3/10 ,  H01S3/23 ,  H01S3/30 ,  G02F1/29

CPC classification number: H01S3/10076 ,  B23K26/356 ,  H01S3/0606 ,  H01S3/08095 ,  H01S3/0813 ,  H01S3/083 ,  H01S3/2333 ,  H01S3/305 ,  H01S3/307

Abstract: A laser system, such as a master oscillator/power amplifier system, comprises a gain medium and a stimulated Brillouin scattering SBS mirror system. The SBS mirror system includes an in situ filtered SBS medium that comprises a compound having a small negative non-linear index of refraction, such as a perfluoro compound. An SBS relay telescope having a telescope focal point includes a baffle at the telescope focal point which blocks off angle beams. A beam splitter is placed between the SBS mirror system and the SBS relay telescope, directing a fraction of the beam to an alternate beam path for an alignment fiducial. The SBS mirror system has a collimated SBS cell and a focused SBS cell. An adjustable attenuator is placed between the collimated SBS cell and the focused SBS cell, by which pulse width of the reflected beam can be adjusted.

Abstract translation: 诸如主振荡器/功率放大器系统的激光系统包括增益介质和受激布里渊散射SBS镜系统。 SBS镜系统包括原位过滤的SBS培养基，其包含具有小的负非线性折射率的化合物，例如全氟化合物。 具有望远镜焦点的SBS中继望远镜包括在望远镜焦点处的挡板，其阻挡角度横梁。 分束器放置在SBS镜系统和SBS中继望远镜之间，将一小部分光束引导到用于对准基准的交替光束路径。 SBS镜像系统具有准直的SBS单元和聚焦的SBS单元。 可调节的衰减器放置在准直的SBS单元和聚焦的SBS单元之间，由此可以调整反射光束的脉冲宽度。

公开(公告)号：US20050092722A1

公开(公告)日：2005-05-05

申请号：US10789557

申请日：2004-02-27

Applicant: C. Dane ,  Lloyd Hackel ,  Fritz Harris

Inventor： C. Dane ,  Lloyd Hackel ,  Fritz Harris

IPC: B23K26/06 ,  C21D10/00 ,  H01S3/10 ,  H01S3/23

CPC classification number: H01S3/235 ,  B23K26/032 ,  B23K26/0622 ,  B23K26/064 ,  B23K26/0648 ,  B23K26/0665 ,  C21D10/005 ,  H01S3/10076

Abstract: A system for applying a laser beam to work pieces, includes a laser system producing a high power output beam. Target delivery optics are arranged to deliver the output beam to a target work piece. A relay telescope having a telescope focal point is placed in the beam path between the laser system and the target delivery optics. The relay telescope relays an image between an image location near the output of the laser system and an image location near the target delivery optics. A baffle is placed at the telescope focal point between the target delivery optics and the laser system to block reflections from the target in the target delivery optics from returning to the laser system and causing damage.

Abstract translation: 用于将激光束施加到工件上的系统包括产生高功率输出光束的激光系统。 目标传送光学器件被布置成将输出光束传送到目标工件。 具有望远镜焦点的中继望远镜被放置在激光系统和目标传送光学器件之间的光束路径中。 继电器望远镜在激光系统的输出附近的图像位置与目标输送光学系统附近的图像位置之间中继图像。 挡板放置在目标输送光学器件和激光系统之间的望远镜焦点处，以阻挡来自目标输送光学器件中的目标物的反射，从返回到激光系统并造成损坏。

公开(公告)号：US20060043079A1

公开(公告)日：2006-03-02

申请号：US11258807

申请日：2005-10-26

Applicant: C. Dane ,  Lloyd Hackel ,  Fritz Harris

Inventor： C. Dane ,  Lloyd Hackel ,  Fritz Harris

IPC: B23K26/00

CPC classification number: H01S3/115 ,  C21D10/005 ,  C21D2221/00 ,  H01S3/083 ,  H01S3/10038 ,  H01S3/10076 ,  H01S3/105 ,  H01S3/107 ,  H01S3/1305 ,  H01S3/137 ,  H01S3/2333

Abstract: A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

公开(公告)号：US20070138157A1

公开(公告)日：2007-06-21

申请号：US11608210

申请日：2006-12-07

Applicant: C. Brent Dane ,  Lloyd Hackel ,  Fritz Harris ,  Chanh Truong ,  James Wintemute

Inventor： C. Brent Dane ,  Lloyd Hackel ,  Fritz Harris ,  Chanh Truong ,  James Wintemute

IPC: B23K26/00 ,  B29C65/16

CPC classification number: B29C39/12 ,  B29C39/006 ,  B29C39/021 ,  C21D7/06

Abstract: A method for laser shock processing a device, including a metallic body having a surface, comprises conformally applying a compliant solid material to the first region on the surface of the metallic body and applying a layer of ablative material to the second region on the surface of the metallic body. A damping liquid is flowed over the layer of ablative material. An array of pulses of laser energy is directed through the damping fluid to impact the layer of ablative material on the surface and peen the surface in the second region. The pulses induce pressure waves within the metallic body which propagate to the surface in the first region. The compliant solid material acts as a momentum trap, so that the acoustic waves are at least partially coupled into the compliant solid material and attenuated outside of the metallic body.

Abstract translation: 一种用于激光冲击加工的方法，包括具有表面的金属体的装置包括将柔性固体材料适形地施加到金属体表面上的第一区域，并将一层可消融材料施加到第二区域的表面上， 金属体。 阻尼液体流过烧蚀材料层。 激光能量的脉冲阵列被引导通过阻尼流体以冲击表面上的烧蚀材料层，并在第二区域中喷涂表面。 脉冲引起金属体内的压力波，其传播到第一区域中的表面。 柔性固体材料用作动量阱，使得声波至少部分地耦合到柔性固体材料中并且衰减到金属体的外部。

公开(公告)号：US06410884B1

公开(公告)日：2002-06-25

申请号：US09604781

申请日：2000-06-26

Applicant: Lloyd Hackel ,  Fritz Harris

Inventor： Lloyd Hackel ,  Fritz Harris

IPC: B23K2600

CPC classification number: B23K26/18 ,  B21D11/20 ,  B21D26/00 ,  B21D26/06 ,  B23K26/356 ,  C21D1/00 ,  C21D10/005 ,  C21D2221/00

Abstract: A method and apparatus are provided for forming shapes and contours in metal sections by generating laser induced compressive stress on the surface of the metal workpiece. The laser process can generate deep compressive stresses to shape even thick components without inducing unwanted tensile stress at the metal surface. The precision of the laser-induced stress enables exact prediction and subsequent contouring of parts. A light beam of 10 to 100 J/pulse is imaged to create an energy fluence of 60 to 200 J/cm2 on an absorptive layer applied over a metal surface. A tamping layer of water is flowed over the absorptive layer. The absorption of laser light causes a plasma to form and consequently creates a shock wave that induces a deep residual compressive stress into the metal. The metal responds to this residual stress by bending.

Abstract translation: 提供了一种通过在金属工件的表面上产生激光诱导的压缩应力来在金属部分中形成形状和轮廓的方法和装置。 激光工艺可以产生深的压缩应力，以形成均匀的厚的部件，而不会在金属表面引起不必要的拉伸应力。 激光诱发应力的精度使得精确的预测和部件的后续轮廓。 成像10至100J /脉冲的光束，以在施加在金属表面上的吸收层上产生60至200J / cm 2的能量注量。 水的捣实层流过吸收层。 激光的吸收导致等离子体形成并因此产生冲击波，其引起金属中的较深的残余压应力。 金属通过弯曲来应对这种残余应力。

公开(公告)号：US20090294424A1

公开(公告)日：2009-12-03

申请号：US12506530

申请日：2009-07-21

Applicant: C. Brent Dane ,  Lloyd Hackel ,  Fritz Harris

Inventor： C. Brent Dane ,  Lloyd Hackel ,  Fritz Harris

IPC: B23K26/00

CPC classification number: H01S3/115 ,  C21D10/005 ,  C21D2221/00 ,  H01S3/083 ,  H01S3/10038 ,  H01S3/10076 ,  H01S3/105 ,  H01S3/107 ,  H01S3/1305 ,  H01S3/137 ,  H01S3/2333

Abstract: A method of operating a laser to obtain an output pulse having a single wavelength, comprises inducing an intracavity loss into a laser resonator having an amount that prevents oscillation during a time that energy from the pump source is being stored in the gain medium. Gain is built up in the gain medium with energy from the pump source until formation of a single-frequency relaxation oscillation pulse in the resonator. Upon detection of the onset of the relaxation oscillation pulse, the intracavity loss is reduced, such as by Q-switching, so that the built-up gain stored in the gain medium is output from the resonator in the form of an output pulse at a single frequency. An electronically controllable output coupler is controlled to affect output pulse characteristics. The laser acts a master oscillator in a master oscillator power amplifier configuration. The laser is used for laser peening.

Abstract translation: 一种操作激光以获得具有单一波长的输出脉冲的方法，包括在具有在来自泵浦源的能量被存储在增益介质中的时间内引起具有防止振荡的量的激光谐振器的腔内损耗。 增益在增益介质中由泵浦源产生能量，直到在谐振器中形成单频弛豫振荡脉冲。 在检测到弛豫振荡脉冲的开始时，例如通过Q开关来减小腔内损耗，使得存储在增益介质中的累积增益以输出脉冲的形式从谐振器输出 单频。 控制电子可控输出耦合器以影响输出脉冲特性。 激光器以主振荡器功率放大器配置为主振荡器。 激光用于激光喷丸处理。

公开(公告)号：US20130064993A1

公开(公告)日：2013-03-14

申请号：US13229840

申请日：2011-09-12

Applicant: Alexander M. Rubenchik ,  Joseph C. Farmer ,  Lloyd Hackel ,  Jon Rankin

Inventor： Alexander M. Rubenchik ,  Joseph C. Farmer ,  Lloyd Hackel ,  Jon Rankin

IPC: B05D1/00 ,  B05C5/00

CPC classification number: H05K3/14 ,  C23C14/14 ,  C23C14/28 ,  H05K3/10 ,  H05K2203/0528 ,  H05K2203/107 ,  H05K2203/1527

Abstract: A technique for bonding two dissimilar materials includes positioning a second material over a first material at an oblique angle and applying a tamping layer over the second martial. A laser beam is directed at the second material that generates a plasma at the location of impact on the second material. The plasma generates pressure that accelerates a portion of the second material to a very high velocity and towards the first material. The second material impacts the first material causing bonding of the two materials.

Abstract translation: 用于接合两种不同材料的技术包括将第二材料以倾斜角度定位在第一材料上并且在第二武术上施加捣实层。 激光束被引导到在第二材料的冲击位置产生等离子体的第二材料。 等离子体产生将第二材料的一部分加速到非常高的速度并朝向第一材料的压力。 第二种材料会影响第一种材料，导致两种材料的结合。

公开(公告)号：US07960671B2

公开(公告)日：2011-06-14

申请号：US11608210

申请日：2006-12-07

Applicant: C. Brent Dane ,  Lloyd Hackel ,  Fritz B. Harris ,  Chanh H. Truong ,  James D. Wintemute

Inventor： C. Brent Dane ,  Lloyd Hackel ,  Fritz B. Harris ,  Chanh H. Truong ,  James D. Wintemute

IPC: B23K26/00

CPC classification number: B29C39/12 ,  B29C39/006 ,  B29C39/021 ,  C21D7/06

Abstract: A method for laser shock processing a device, including a metallic body having a surface, comprises conformally applying a compliant solid material to the first region on the surface of the metallic body and applying a layer of ablative material to the second region on the surface of the metallic body. A damping liquid is flowed over the layer of ablative material. An array of pulses of laser energy is directed through the damping fluid to impact the layer of ablative material on the surface and peen the surface in the second region. The pulses induce pressure waves within the metallic body which propagate to the surface in the first region. The compliant solid material acts as a momentum trap, so that the acoustic waves are at least partially coupled into the compliant solid material and attenuated outside of the metallic body.

Abstract translation: 一种用于激光冲击加工的方法，包括具有表面的金属体的装置包括将柔性固体材料适形地施加到金属体表面上的第一区域，并将一层可消融材料施加到第二区域的表面上， 金属体。 阻尼液体流过烧蚀材料层。 激光能量的脉冲阵列被引导通过阻尼流体以冲击表面上的烧蚀材料层，并在第二区域中喷涂表面。 脉冲引起金属体内的压力波，其传播到第一区域中的表面。 柔性固体材料用作动量阱，使得声波至少部分地耦合到柔性固体材料中并且衰减到金属体的外部。