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    Solid-state laser processing apparatus and laser welding process
    1.
    发明授权
    Solid-state laser processing apparatus and laser welding process 失效
    固态激光加工设备和激光焊接工艺

    公开(公告)号：US07608799B2

    公开(公告)日：2009-10-27

    申请号：US11001052

    申请日：2004-12-02

    申请人： Hironari Mikata ,  Kazuhisa Mikame ,  Akio Sato ,  Kazuki Kuba ,  Shuichi Fujikawa ,  Toshiaki Watanabe

    发明人： Hironari Mikata ,  Kazuhisa Mikame ,  Akio Sato ,  Kazuki Kuba ,  Shuichi Fujikawa ,  Toshiaki Watanabe

    IPC分类号： B23K26/00

    CPC分类号： B23K26/073 ,  B23K26/244 ,  B23K26/38 ,  G02B6/4296

    摘要： A solid-state laser processing apparatus includes a solid-state laser oscillator, a laser beam diameter controller, an optical fiber, and a processing head. The solid-state laser oscillator oscillates a laser beam. The laser beam diameter controller controls a beam diameter of the laser beam, and includes an aperture. The aperture controls a beam quality of the laser beam defined by M2 so as to fall in a range of 85≦M2≦105. The optical fiber guides the controlled laser beam therein. The processing head includes a transfer optical system, and irradiates the guided laser beam to a surface of a workpiece to be processed by way of the transfer optical system.

    摘要翻译： 固体激光加工装置包括固体激光振荡器，激光束直径控制器，光纤和处理头。 固态激光振荡器振荡激光束。 激光束直径控制器控制激光束的光束直径，并且包括光圈。 孔径控制由M2限定的激光束的光束质量，以便落在85 <= M2 <= 105的范围内。 光纤将受控激光束引导到其中。 处理头包括转印光学系统，并且通过转印光学系统将被激光束照射到待处理的工件的表面。

    SOLID-STATE LASER DEVICE
    3.
    发明申请
    SOLID-STATE LASER DEVICE 审中-公开
    固态激光器件

    公开(公告)号：US20090141746A1

    公开(公告)日：2009-06-04

    申请号：US11916114

    申请日：2006-05-19

    申请人： Shuichi Fujikawa ,  Junji Kano ,  Kazuki Kuba

    发明人： Shuichi Fujikawa ,  Junji Kano ,  Kazuki Kuba

    IPC分类号： H01S3/11 ,  H01S3/00 ,  H01S3/10

    CPC分类号： H01S3/025 ,  H01S3/005 ,  H01S3/0092 ,  H01S3/027 ,  H01S3/07 ,  H01S3/0941 ,  H01S3/117

    摘要： In a solid-state laser device, a single outer casing (1) having an approximately sealed structure is included; a single or a plurality of inner casings (2) are provided inside the outer casing (1); in some or all of the inner casings (2), an air cleaning unit (4) is included in which the air within the outer casing (1) is made clean and supplied into the inner casings (2); inside the outer casing (1), there disposed are a laser light-source (5, 6, 7) having a solid-state laser medium (501) and a light resonator, and an optical system (10, 11, 901) that transmits or interrupts a laser beam (8) emitted from the laser light-source; in addition, the laser light-source (5, 6, 7) and the optical system (10, 11, 901) or part of them are contained inside the inner casings (2); thus, in a simple, compact and inexpensive configuration, it is possible to prevent degradation of optical components and dew condensation thereon, and to stably supply a laser beam.

    摘要翻译： 在固体激光装置中，包括具有近似密封结构的单个外壳（1） 在外壳（1）的内部设有单个或多个内壳（2）。 在一些或全部内壳体（2）中，包括空气净化单元（4），其中外壳（1）内的空气被清洁并供应到内壳体（2）中; 在外壳（1）的内部，设置有具有固态激光介质（501）和光谐振器的激光光源（5,6,7）和光学系统（10,11,101），其中 传输或中断从激光光源发射的激光束（8）; 另外，激光光源（5,6,7）和光学系统（10,11，901）或其一部分被包含在内壳体（2）内; 因此，在简单，紧凑且廉价的结构中，可以防止光学部件的劣化和结露，并稳定地供给激光束。

    Optical transmission device, solid state laser device, and laser beam processing device
    7.
    发明授权
    Optical transmission device, solid state laser device, and laser beam processing device 失效
    光传输装置，固态激光装置和激光束处理装置

    公开(公告)号：US5815626A

    公开(公告)日：1998-09-29

    申请号：US714304

    申请日：1996-09-18

    申请人： Kazuki Kuba ,  Akira Ishimori ,  Koji Yasui ,  Kenji Kumamoto ,  Kuniaki Iwashiro

    发明人： Kazuki Kuba ,  Akira Ishimori ,  Koji Yasui ,  Kenji Kumamoto ,  Kuniaki Iwashiro

    IPC分类号： A61B18/22 ,  B23K26/06 ,  G02B6/42 ,  G02B6/02

    CPC分类号： B23K26/032 ,  B23K26/06 ,  B23K26/064 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0665 ,  G02B6/4206 ,  G02B6/4296 ,  A61B18/22

    摘要： An optical transmission device has an graded index optical fiber having a diameter .phi..sub.s of a core of the optical fiber, a refraction index n.sub.0 at a center of the core, and a difference .DELTA.n between refraction indexes of the center of the core and a peripheral section of the core; and an optical fiber incident system having a smallest focussed point at or near an incident side plane in said optical fiber through which the laser beam being introduced, and a diameter .phi..sub.in Of the laser beam at said incident side plane of said optical fiber having a following relationship: 0.5.phi..sub.s .ltoreq..phi..sub.in .ltoreq.2.phi..sub.s, and .phi..sub.s =(.phi..sub.c .phi..sub.0 .theta.(2n.sub.0 .DELTA.n).sup.-1/2).sup.1/2, where a diameter and an opening angle of the laser beam waist are .phi..sub.0 and 2.theta.. A solid state laser device has an graded index optical fiber in which the diameter .phi..sub.in of the laser beam at the optical fiber side having the following relationship: 0.5.phi..sub.s .ltoreq..phi..sub.in .ltoreq.2.phi..sub.s, and .phi..sub.s =(.phi..sub.c .phi..sub.0 .theta.(2n.sub.0 .DELTA.n).sup.-1/2).sup.1/2, where a diameter of the laser beam waist at an output level is .phi..sub.0, and an opening angle is 2.theta. (total angle). and a laser processing device incorporating these optical transmission device and the solid state laser device.

    摘要翻译： 光传输装置具有光纤中心的折射率n0和芯的中心的折射率之差ΔTA与光纤中心的折射率n0之间的折射率光纤， 核心周边部分; 以及在所述光纤中的入射侧平面处或附近具有最小聚焦点的光纤入射系统，激光束通过该入射侧平面被引入，并且在所述光纤的所述入射侧平面处的激光束的直径φ具有 以下关系：

    Solid state laser apparatus
    8.
    发明授权
    Solid state laser apparatus 失效
    固态激光装置

    公开(公告)号：US5299213A

    公开(公告)日：1994-03-29

    申请号：US26100

    申请日：1993-03-04

    申请人： Kazuki Kuba ,  Takashi Yamamoto ,  Shigenori Yagi

    发明人： Kazuki Kuba ,  Takashi Yamamoto ,  Shigenori Yagi

    IPC分类号： H01S3/042 ,  H01S3/05 ,  H01S3/06 ,  H01S3/08 ,  H01S3/093 ,  H01S3/045

    CPC分类号： H01S3/025 ,  H01S3/042 ,  H01S3/093 ,  H01S3/0407 ,  H01S3/0606 ,  H01S3/08072

    摘要： A solid state laser apparatus comprises a laser medium having a pair of optically flat surfaces confronting to each other, and side surfaces intersecting the optically flat surfaces along an optical axis, the laser medium having a rectangular cross section; heat insulators adhered to the side surfaces of the laser medium; and reflective films for shielding the thermal insulators from pumping light. A solid state laser apparatus may comprise heat conductors bonded to the side surfaces of the laser medium, the heat conductors removing heat which occurs at bonding surfaces, the amount of removed heat from the side surfaces being smaller than that from the optically flat surfaces.

    摘要翻译： 固体激光装置包括具有彼此面对的一对光学平面的激光介质和沿着光轴与光学平坦表面相交的侧表面，激光介质具有矩形横截面; 绝热体粘附到激光介质的侧表面; 以及用于屏蔽热绝缘体而不是泵浦光的反射膜。 固体激光装置可以包括结合到激光介质的侧表面的热导体，去除在结合表面处发生热量的热导体，从侧面移除的热量比从光学平面表面移除的热量少。

    Solid laser device
    9.
    发明授权
    Solid laser device 失效
    固体激光器件

    公开(公告)号：US5125001A

    公开(公告)日：1992-06-23

    申请号：US598622

    申请日：1990-10-15

    申请人： Shigenori Yagi ,  Kazuki Kuba ,  Junichi Nishimae ,  Takashi Yamamoto

    发明人： Shigenori Yagi ,  Kazuki Kuba ,  Junichi Nishimae ,  Takashi Yamamoto

    IPC分类号： H01S3/06 ,  H01S3/08 ,  H01S3/081

    CPC分类号： H01S3/081 ,  H01S3/0606 ,  H01S3/08081 ,  H01S2301/20 ,  H01S2301/203 ,  H01S3/0407 ,  H01S3/08059 ,  H01S3/08072 ,  H01S3/08095 ,  H01S3/092

    摘要： This invention relates to a solid laser device with a slab-shaped laser medium. One example of a solid laser device according to the invention, comprises: a slab-shaped laser medium having one pair of optically smooth surfaces confronting each other through the optical path; first and second mirrors arranged on the optical path in such a manner that the first and second mirrors are confronted with each other through the laser medium; a resonator which forms an unstable resonator in the direction of width of the laser medium, and a low order stable resonator in the direction of thickness of the laser medium; and laser beam emergence medium for taking a laser beam out of the a resonator and outputting the laser beam from the device. Another example comprises: a slab-shaped laser medium having a pair of optically smooth surfaces confronting each other through the optical path; first and second mirrors arranged on the optical path in such a manner that the first and second mirrors are confronted with each other through the laser medium; a resonator which forms unstable resonators in the direction of width of the laser medium and in the direction of thickness of the same; and laser beam emergence medium for taking a laser beam out of the a resonator and outputting the laser beam from the device. Accordingly, the solid laser devices can output a high power laser beam excellent in convergence, thus being applicable to precision laser machining operations.

    摘要翻译： PCT No.PCT / JP90 / 00182 Sec。 371 1990年10月15日第 102（e）1990年10月15日日期PCT提交1990年2月15日PCT公布。 WO90 / 09690 PCT出版物 日本1990年8月23日。本发明涉及具有板状激光介质的固体激光装置。 根据本发明的固体激光装置的一个实例包括：具有通过光路彼此相对的一对光学平滑表面的板状激光介质; 第一和第二反射镜以这样的方式布置在光路上，使得第一和第二反射镜通过激光介质相互面对; 在激光介质的宽度方向上形成不稳定谐振器的谐振器，以及在激光介质的厚度方向上的低阶稳定谐振器; 以及用于将激光束从谐振器中取出并从该器件输出激光束的激光束出射介质。 另一实例包括：具有通过光路彼此面对的一对光学平滑表面的板状激光介质; 第一和第二反射镜以这样的方式布置在光路上，使得第一和第二反射镜通过激光介质相互面对; 谐振器，其在激光介质的宽度方向和其厚度方向上形成不稳定的谐振器; 以及用于将激光束从谐振器中取出并从该器件输出激光束的激光束出射介质。 因此，固体激光装置能够输出收敛性优异的高功率激光束，因此适用于精密激光加工操作。