公开(公告)号：US20070109629A1

公开(公告)日：2007-05-17

申请号：US11643760

申请日：2006-12-22

Applicant: Almantas Galvanauskas ,  Donald Harter ,  Martin Fermann ,  Ferenc Raksi

Inventor： Almantas Galvanauskas ,  Donald Harter ,  Martin Fermann ,  Ferenc Raksi

IPC: H01S3/00

CPC classification number: H01S3/0627 ,  G02B6/262 ,  G02F1/3525 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/06708 ,  H01S3/06754 ,  H01S3/094003 ,  H01S3/094007 ,  H01S3/094069 ,  H01S3/09415 ,  H01S3/115 ,  H01S3/1611 ,  H01S3/1618 ,  H01S3/1673 ,  H01S3/302

Abstract: The invention describes techniques for the control of the spatial as well as spectral beam quality of multi-mode fiber amplification of high peak power pulses as well as using such a configuration to replace the present diode-pumped, Neodynium based sources. Perfect spatial beam-quality can be ensured by exciting the fundamental mode in the multi-mode fibers with appropriate mode-matching optics and techniques. The loss of spatial beam-quality in the multi-mode fibers along the fiber length can be minimized by using multi-mode fibers with large cladding diameters. Near diffraction-limited coherent multi-mode amplifiers can be conveniently cladding pumped, allowing for the generation of high average power. Moreover, the polarization state in the multi-mode fiber amplifiers can be preserved by implementing multi-mode fibers with stress producing regions or elliptical fiber cores These lasers find application as a general replacement of Nd: based lasers, especially Nd:YAG lasers. Particularly utility is disclosed for applications in the marking, micro-machining and drilling areas.

Abstract translation: 本发明描述了用于控制高峰值功率脉冲的多模光纤放大的空间以及光束质量的技术，以及使用这种配置来替代当前二极管泵浦的基于钕的源。 通过适当的模式匹配光学和技术，可以通过激发多模光纤中的基模来确保完美的空间光束质量。 通过使用具有大包层直径的多模光纤，能够使沿着光纤长度的多模光纤中的空间光束质量损失最小化。 近衍射极限相干多模放大器可以方便地进行包层泵浦，从而产生高平均功率。 此外，通过实施具有应力产生区域或椭圆形光纤核心的多模光纤，可以保持多模光纤放大器中的偏振状态。这些激光器可用作Nd基激光器，尤其是Nd：YAG激光器的一般替代。 公开了用于标记，微加工和钻孔领域的应用。

公开(公告)号：US20070068475A1

公开(公告)日：2007-03-29

申请号：US11524442

申请日：2006-09-21

Applicant: Herbert Kopecek ,  Kurt Iskra ,  Martin Weinrotter ,  Josef Graf ,  Johann Klausner

Inventor： Herbert Kopecek ,  Kurt Iskra ,  Martin Weinrotter ,  Josef Graf ,  Johann Klausner

IPC: F02B19/00 ,  F02B1/12 ,  F02P23/00 ,  F02B5/02 ,  H01T13/54

CPC classification number: H01S3/0602 ,  F02P23/04 ,  H01S3/0615 ,  H01S3/08022 ,  H01S3/0804 ,  H01S3/08063 ,  H01S3/094038 ,  H01S3/094053 ,  H01S3/1022 ,  H01S3/113

Abstract: An internal combustion engine has a laser light generating device. The laser light generating device is suitable for delivering laser light with a transverse mode structure which varies in respect of time.

Abstract translation: 内燃机具有激光发生装置。 激光发生装置适用于以相对于时间变化的横向模式结构传送激光。

公开(公告)号：US20070002920A1

公开(公告)日：2007-01-04

申请号：US11471493

申请日：2006-06-21

Applicant: Mitsuo Ishizu

Inventor： Mitsuo Ishizu

IPC: H01S3/10 ,  H01S3/091

CPC classification number: H01S3/0606 ,  H01S3/0615 ,  H01S3/0623 ,  H01S3/0625 ,  H01S3/063 ,  H01S3/08095 ,  H01S3/093 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/1653 ,  H01S3/2325

Abstract: A laser apparatus has a multipath solid-state slab laser rod and an excitation source that excites it, and uses a solid-state slab laser rod that has a trapezoid or parallelogram-shaped cross section along the optical path, that is provided with six or more faces and that has a light amplifying effect or a nonlinear optical effect. The light that is incident to the laser rod is totally reflected at the incident-light end face and exit end face of the laser rod, passes back through the interior of the laser rod a plurality of times, e.g., three times, and then exits. For light amplification, excitation light is shined from the side face. In addition, for nonlinear optical effects, the z-axis of a nonlinear optical crystal is disposed so as to be orthogonal to the plane of the optical path, and the temperature of the solid-state slab laser rod is kept at the phase-matching temperature. This laser apparatus of this configuration solves drawbacks of prior-art laser rods so that the high conversion rate from excitation light to laser light is obtained at a high laser gain.

Abstract translation: 激光装置具有多径固态板激光棒和激发源，并且使用沿着光路具有梯形或平行四边形横截面的固态平板激光棒，其设有六个或 更多的面孔，具有光放大效果或非线性光学效果。 入射到激光棒的光在激光棒的入射光端面和出射端面处被全反射，多次反复穿过激光棒的内部，例如三次，然后退出 。 对于光放大，激发光从侧面发光。 此外，对于非线性光学效应，非线性光学晶体的z轴被布置成与光路的平面正交，并且固态平板激光棒的温度保持在相位匹配 温度。 这种配置的激光装置解决了现有技术的激光棒的缺点，从而在高激光增益下获得从激发光到激光的高转换率。

公开(公告)号：US07068420B2

公开(公告)日：2006-06-27

申请号：US11181307

申请日：2005-07-14

Applicant: Luigi Tallone ,  Carlo De Bernardi

Inventor： Luigi Tallone ,  Carlo De Bernardi

IPC: H01S3/00 ,  G02B6/10

CPC classification number: H01S3/0933 ,  H01S3/0602 ,  H01S3/0615 ,  H01S3/0632 ,  H01S3/0637 ,  H01S3/09403 ,  H01S3/1608 ,  H01S3/1655 ,  H01S3/169 ,  H01S3/2308 ,  H01S3/2333

Abstract: An optical amplifier includes a substrate having disposed thereon an optical waveguide, the optical waveguide having an active region with Si nanocrystals dispersed in an erbium doped glass matrix. A light source is arranged to irradiate the optical waveguide with pump electromagnetic radiation. The amplifier also includes means for suitably shaping an input electromagnetic field to be amplified into the active region of the optical waveguide.

Abstract translation: 光放大器包括其上设置有光波导的基板，该光波导具有分散在掺铒玻璃基体中的Si纳米晶体的有源区。 光源被布置成用泵电磁辐射照射光波导。 放大器还包括用于适当地整形要放大到光波导的有源区域中的输入电磁场的装置。

公开(公告)号：US20060126676A1

公开(公告)日：2006-06-15

申请号：US10521088

申请日：2003-07-10

Applicant: Guenter Hollemann ,  Martin Leitner ,  Jan Symanowski

Inventor： Guenter Hollemann ,  Martin Leitner ,  Jan Symanowski

IPC: H01S3/13

CPC classification number: H01S3/0941 ,  H01S3/0064 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/08072 ,  H01S3/0815 ,  H01S3/09415 ,  H01S3/10007 ,  H01S3/1022 ,  H01S3/117 ,  H01S3/1611 ,  H01S3/1673 ,  H01S3/2316

Abstract: The object of a pulsed laser arrangement and a method for adjusting the pulse length of laser pulses is to change the pulse length over a wide range substantially independent from the laser output power, in particular to counteract a reduction in output and to prevent a negative change in the beam parameters when lengthening the pulse by means of varying the oscillator output. A multistage laser amplifier in which an amplifying medium with a small-signal amplification of more than 10 is provided in every stage (17-22) is arranged downstream of a diode-pumped Q-switched solid state laser oscillator with variable oscillator output for supplying oscillator pulses. The total small-signal amplification brought about by all of the amplifying media is greater than 1000. The pulsed laser arrangement and the method can be used for industrial and medical purposes requiring pulse lengths in the range of several hundred ns to several μs at pulse repetition rates between 10 kHz and 200 kHz.

Abstract translation: 脉冲激光装置的目的和用于调节激光脉冲的脉冲长度的方法是在与激光输出功率基本无关的宽范围内改变脉冲长度，特别是为了抵消输出的减小并防止负变化 在通过改变振荡器输出来延长脉冲时的光束参数。 在每个阶段（17-22）中提供具有大于10的小信号放大的放大介质的多级激光放大器布置在具有可变振荡器输出的二极管泵浦Q开关固态激光振荡器的下游，用于供应 振荡器脉冲。 由所有放大介质引起的总小信号放大大于1000.脉冲激光装置和方法可用于工业和医疗用途，需要在脉冲重复的几百ns至几mus范围内的脉冲长度 速率在10 kHz到200 kHz之间。

公开(公告)号：US07054341B2

公开(公告)日：2006-05-30

申请号：US10505070

申请日：2003-02-19

Applicant: Gerald Francis Hermann ,  Thomas Robert Kugler ,  Mohammed Naeem ,  Keith Withnall ,  Walther Goethals ,  David M. Filgas

Inventor： Gerald Francis Hermann ,  Thomas Robert Kugler ,  Mohammed Naeem ,  Keith Withnall ,  Walther Goethals ,  David M. Filgas

IPC: H01S3/10

CPC classification number: B23K26/0626 ,  B23K26/0622 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665 ,  B23K26/361 ,  B23K26/40 ,  B23K2103/50 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/061 ,  H01S3/0615 ,  H01S3/07 ,  H01S3/0805 ,  H01S3/08072

Abstract: Laser processing methods, systems and apparatus having a super-modulating power supply (6) or pumping subsystem (5) and high beam quality (i.e., brightness) are disclosed. The methods, systems and apparatus have significant benefits, improved operation characteristics and material processing capability over currently available methods, systems and apparatus. In at least one embodiment, the beam quality of a high power solid state laser (2) is improved in the presence of thermal lensing. High power laser cutting, scribing, and welding results are improved with a combination of modulation and high beam quality while providing for improved processing speeds.

Abstract translation: 公开了具有超调制电源（6）或泵送子系统（5）和高光束质量（即亮度）的激光加工方法，系统和装置。 方法，系统和装置与现有的方法，系统和装置相比具有显着的益处，改进的操作特性和材料处理能力。 在至少一个实施例中，在存在热透镜的情况下，高功率固体激光器（2）的光束质量得到改善。 通过调制和高光束质量的组合，提高了大功率激光切割，划线和焊接结果，同时提供了改进的处理速度。

公开(公告)号：US20050259705A1

公开(公告)日：2005-11-24

申请号：US11114654

申请日：2005-04-26

Applicant: Yoshiaki Goto ,  Masayuki Momiuchi ,  Taizo Eno

Inventor： Yoshiaki Goto ,  Masayuki Momiuchi ,  Taizo Eno

IPC: H01S3/042 ,  G02B6/42 ,  H01S3/04 ,  H01S3/06 ,  H01S3/0941 ,  H01S3/16

CPC classification number: H01S3/0627 ,  G02B6/4206 ,  G02B6/4249 ,  H01S3/025 ,  H01S3/0404 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0615 ,  H01S3/08063 ,  H01S3/09415 ,  H01S3/1611 ,  H01S3/1673

Abstract: A laser oscillation device, comprising an optical crystal, wherein a heat radiation film with thermal conductivity higher than thermal conductivity of the optical crystal is formed at least on an end surface of the optical crystal where an excitation light enters.

Abstract translation: 一种激光振荡装置，包括光学晶体，其中至少在激发光进入的光学晶体的端面上形成导热率高于光学晶体的热导率的散热膜。

公开(公告)号：US20050254540A1

公开(公告)日：2005-11-17

申请号：US10844446

申请日：2004-05-13

Applicant: John Nettleton ,  Dallas Barr ,  Charlie Trussell

Inventor： John Nettleton ,  Dallas Barr ,  Charlie Trussell

IPC: H01S3/06 ,  H01S3/081 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/16

CPC classification number: H01S3/09415 ,  H01S3/0085 ,  H01S3/0606 ,  H01S3/0615 ,  H01S3/0621 ,  H01S3/0623 ,  H01S3/0815 ,  H01S3/094084 ,  H01S3/1083 ,  H01S3/113 ,  H01S3/1611 ,  H01S3/1643

Abstract: The ‘End Pumped Slab’ Laser Cavity incorporates all optical components required for a short-pulse laser. These optical components are ‘locked’ into alignment forming an optical laser cavity for diode laser or flash lamp pumping. The optical laser cavity never needs optical alignment after it is fabricated. The cavity is configured for optimal absorbtion for diode laser end-pumping over broad temperature ranges.

Abstract translation: “End Pumped Slab”激光腔结合了短脉冲激光器所需的所有光学部件。 这些光学部件被“锁定”成对齐，形成用于二极管激光器或闪光灯泵浦的光学激光器腔。 光学激光腔在制造后不需要光学对准。 空腔配置为在宽温度范围内实现二极管激光端泵浦的最佳吸收。

公开(公告)号：US20050111510A1

公开(公告)日：2005-05-26

申请号：US10719072

申请日：2003-11-21

Applicant: Mali Gong ,  Chen Li ,  Qiang Liu ,  Ping Yan ,  Gang Chen ,  HaiTao Zhang ,  Ruizhen Cui

Inventor： Mali Gong ,  Chen Li ,  Qiang Liu ,  Ping Yan ,  Gang Chen ,  HaiTao Zhang ,  Ruizhen Cui

IPC: H01S3/042 ,  H01S3/06 ,  H01S3/09 ,  H01S3/0941 ,  H01S3/16

CPC classification number: H01S3/0606 ,  H01S3/042 ,  H01S3/0615 ,  H01S3/08095 ,  H01S3/094057 ,  H01S3/0941 ,  H01S3/1611 ,  H01S3/1643 ,  H01S3/2316

Abstract: A corner-pumping method for slab laser and a solid-state laser gain module are disclosed. In one embodiment, said method comprises directing a pump light into a laser slab through slab corners of said laser slab; propagating the pump light within the laser slab by total internal reflection (TIR); and substantially absorbing the pump light during propagating. In another embodiment, said gain module comprises a laser slab formed by a solid state laser material, said laser slab including slab corners with corner faces; and a pump source providing a pump light; wherein said pump light is directed into said laser slab through said slab corners of said laser slab, propagated within said laser slab by total internal reflection (TIR), and substantially absorbed during propagation; and wherein said laser slab outputs an amplified laser beam.

Abstract translation: 公开了一种用于平板激光器和固态激光增益模块的角式抽取方法。 在一个实施例中，所述方法包括将泵浦光通过所述激光板的板角引导到激光板中; 通过全内反射（TIR）传播激光板内的泵浦光; 并且在传播期间基本上吸收泵浦光。 在另一个实施例中，所述增益模块包括由固体激光材料形成的激光平板，所述激光板包括具有角面的平板角; 以及提供泵浦光的泵浦源; 其中所述泵浦光通过所述激光板的所述板角转入所述激光板，通过全内反射（TIR）在所述激光板内传播，并且在传播期间基本上被吸收; 并且其中所述激光板输出放大的激光束。

公开(公告)号：US06891877B2

公开(公告)日：2005-05-10

申请号：US10332753

申请日：2001-07-10

Applicant: Ulf Krause ,  Artur Afanaslovich Mak ,  Boris Grigorievich Malinin ,  Valeriy Mikhaylovich Mitkin ,  Vladimir Georgievich Pankov ,  Victor Anatollevich Serebryakov ,  Vladimir Ivanovich Ustyugov ,  Bernd Braun

Inventor： Ulf Krause ,  Artur Afanaslovich Mak ,  Boris Grigorievich Malinin ,  Valeriy Mikhaylovich Mitkin ,  Vladimir Georgievich Pankov ,  Victor Anatollevich Serebryakov ,  Vladimir Ivanovich Ustyugov ,  Bernd Braun

IPC: H01S3/0933 ,  H01S3/00 ,  H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/0941 ,  H01S3/16 ,  H01S3/08 ,  H01S3/14 ,  H01S5/00

CPC classification number: H01S3/0941 ,  H01S3/005 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0602 ,  H01S3/0604 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/0615 ,  H01S3/0617 ,  H01S3/0625 ,  H01S3/094084 ,  H01S3/1611 ,  H01S3/1643

Abstract: The inventive module of a light-pumped laser comprises light pump sources, a solid-state active element which is embodied in the form of a plate and provided with a couple of first opposite side faces, the distance therebetween defining the width of the active element for passing a pump radiation therethrough from the pump sources to the active element; a couple of second opposite side faces. The distance therebetween defining the thickness of the active element. which faces are embodied in the plane-parallel manner in order to direct a beam of formed laser radiation in such a way that it enables said beam to pass along the length of the active element in a zigzag manner, undergoing a total internal reflection from the couple of second side faces; a couple of end faces, the distance therebetween defining the length of the active element, and also heal-spreading devices which have a thermal contact with each second face in order So remove beat from the active element.

Abstract translation: 光泵浦激光器的本发明模块包括光泵源，固体有源元件，其以板的形式实施并且设置有一对第一相对侧面，其间限定有源元件的宽度 用于将泵浦辐射从泵浦源传递到有源元件; 几个第二个相对的侧面。 它们之间的距离限定有源元件的厚度。 这些面被以平行平行的方式体现，以便以这样的方式引导形成的激光辐射束，使得其使得所述光束能够以锯齿形的方式沿着有源元件的长度通过，从而进行全内反射 第二面的情侣; 一对端面，它们之间的距离限定有源元件的长度，以及还具有与每个第二面热连接的愈合扩散器件，从而从有源元件去除节拍。