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    Solid-state laser amplifying apparatus and solid-state laser apparatus capable of oscillating high-power laser beam under stable condition
    1.
    发明授权
    Solid-state laser amplifying apparatus and solid-state laser apparatus capable of oscillating high-power laser beam under stable condition 失效
    固态激光放大装置和稳态条件下能够振荡大功率激光束的固态激光装置

    公开(公告)号：US5661738A

    公开(公告)日：1997-08-26

    申请号：US543070

    申请日：1995-10-13

    申请人： Koji Yasui ,  Tetsuo Kojima

    发明人： Koji Yasui ,  Tetsuo Kojima

    IPC分类号： H01S3/042 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/16

    CPC分类号： H01S3/061 ,  H01S3/0941 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/094057 ,  H01S3/09408

    摘要： In a solid-state laser amplifying apparatus and a solid-state laser apparatus, a high-power laser beam can be produced in a high efficiency under stable condition. The solid-state laser amplifying apparatus is comprised of a solid-state element containing an activated solid medium; a flow tube for causing a cooling medium used to cool the solid-state element to flow therethrough; a light condensing device arranged so as to surround the solid-state element, for holding the flow tube by directly, or indirectly sandwiching the flow tube, an inner surface of which is formed as a diffusion/reflection surface; an excitation light source arranged outside the light condensing device, for emitting excitation light used to excite the solid-state element; and an opening portion provided with the light condensing device, for conducting the excitation light.

    摘要翻译： 在固体激光放大装置和固体激光装置中，能够在稳定的条件下高效率地制造高功率激光束。 固体激光放大装置由含有活化的固体介质的固态元件组成; 用于使用于冷却固态元件的冷却介质流过其中的流管; 一个聚光装置，被布置成围绕固态元件，用于通过直接地或间接地夹持其内表面作为扩散/反射表面的流动管夹持流管; 激发光源，其布置在所述聚光装置的外部，用于发射用于激发所述固态元件的激发光; 以及设置有聚光装置的开口部分，用于传导激发光。

    Solid state laser apparatus and laser machining apparatus
    2.
    发明授权
    Solid state laser apparatus and laser machining apparatus 失效
    固态激光装置和激光加工装置

    公开(公告)号：US5359616A

    公开(公告)日：1994-10-25

    申请号：US114086

    申请日：1993-08-31

    申请人： Koji Yasui ,  Tetsuo Kojima ,  Takashi Yamamoto ,  Akira Ishimori ,  Kuniaki Iwashiro

    发明人： Koji Yasui ,  Tetsuo Kojima ,  Takashi Yamamoto ,  Akira Ishimori ,  Kuniaki Iwashiro

    IPC分类号： H01S3/06 ,  B23K26/06 ,  H01S3/04 ,  H01S3/042 ,  H01S3/07 ,  H01S3/08 ,  H01S3/093 ,  H01S3/0941 ,  H01S3/105 ,  H01S3/23 ,  H01S3/14

    CPC分类号： H01S3/0931 ,  B23K26/0622 ,  H01S2301/20 ,  H01S2301/206 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/061 ,  H01S3/0617 ,  H01S3/07 ,  H01S3/08 ,  H01S3/08063 ,  H01S3/08068 ,  H01S3/08072 ,  H01S3/08081 ,  H01S3/0941 ,  H01S3/23 ,  H01S3/2308

    摘要： A solid state laser apparatus is provided to generate a high quality and high power laser beam, and a laser machining apparatus is provided to perform laser machining by a laser beam generated from the solid state laser apparatus. In the solid state laser apparatus, a laser resonator includes a solid state component cooled in a cylindrical pipe by contacting liquid which is introduced through an inflow opening and discharged through an outflow opening, the solid state component having larger refractive index than that of the liquid, a light source turned ON by a power source to excite the solid state component, and an optical system transmitting light from the light source to the solid state component. Further, a surface roughness of the solid state component is adjusted so as to adjust an excitation distribution in a section of the solid state component. The solid state component further includes moving means for moving a reflection mirror and a condensing lens in a direction of an optical axis of the laser resonator, and a housing accommodating an image transferring optical system. A laser beam is generated from the laser resonator, and is externally derived and used to perform the laser machining.

    摘要翻译： 提供固体激光装置以产生高质量和高功率的激光束，并且提供激光加工装置以通过由固态激光装置产生的激光束进行激光加工。 在固体激光装置中，激光谐振器包括通过使通过流入开口引入并通过流出开口排出的液体接触在圆筒形管中冷却的固态成分，固体成分的折射率比液体的折射率大 通过电源将光源接通以激发固体成分，以及将光从光源透射到固体成分的光学系统。 此外，调整固体成分的表面粗糙度，以调整固体成分的截面中的激发分布。 固态分量还包括用于在激光谐振器的光轴的方向上移动反射镜和聚光透镜的移动装置，以及容纳图像转印光学系统的壳体。 从激光谐振器产生激光束，并从外部衍生并用于执行激光加工。

    Photoexcitation solid laser amplifier photoexcitation solid laser unit and solid laser excitation method
    6.
    发明授权
    Photoexcitation solid laser amplifier photoexcitation solid laser unit and solid laser excitation method 失效
    激光激光激光激光器激光激光单元和固体激光激发法

    公开(公告)号：US5889808A

    公开(公告)日：1999-03-30

    申请号：US825048

    申请日：1997-03-27

    申请人： Tetsuo Kojima ,  Koji Yasui

    发明人： Tetsuo Kojima ,  Koji Yasui

    IPC分类号： H01S3/042 ,  H01S3/04 ,  H01S3/094 ,  H01S3/0941

    CPC分类号： H01S3/0941 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/094057

    摘要： To inexpensively and in a simple configuration provide a solid laser amplifier and a solid laser unit capable of generating a high output and high quality laser beam, the unit includes a solid laser medium 5A containing active solid media; a flow tube 14 or the like allowing a cooling medium 24 for cooling the solid laser medium 5A; and a laser array 12 so controlled in temperature as to emit an excitation light 9 for exciting the solid laser medium 5A, the wavelength of which lies within the absorption spectra of a solid laser medium 5A yet does not coincide with that of the absorption spectrum peak of a solid laser medium 5A.

    摘要翻译： 为了廉价并且以简单的配置提供了能够产生高输出和高质量激光束的固体激光放大器和固体激光器单元，该单元包括含有活性固体介质的固体激光介质5A; 流动管14等，用于冷却固体激光介质5A的冷却介质24; 以及如此控制的激光阵列12，以发射用于激发固体激光介质5A的激发光9，其激光位于固体激光介质5A的吸收光谱内，但与吸收光谱峰的波长不一致 的固体激光介质5A。

    Optical transmission device, solid state laser device, and laser beam processing device
    8.
    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：