公开(公告)号：US07280577B2

公开(公告)日：2007-10-09

申请号：US10475918

申请日：2002-04-24

申请人： Susumu Konno ,  Tetsuo Kojima ,  Shuichi Fujikawa

发明人： Susumu Konno ,  Tetsuo Kojima ,  Shuichi Fujikawa

IPC分类号： H01S3/14

CPC分类号： H01S3/2316 ,  H01S3/08072 ,  H01S3/0941 ,  H01S3/10007 ,  H01S3/1022

摘要： Laser equipment in which pumping every dependence of output beam diameter and beam wavefront curvature is reduced. The total pumping energy of at least one of laser active media disposed beyond terminal laser beam waists, among beam waists, is approximately one-half of the total pumping energy of laser active media disposed between two adjacent beam waists.

摘要翻译： 激光设备中的每个输出光束直径和光束波前曲率的依赖性都被减少。 在束腰之间设置的超过终端激光束腰部的激光活性介质中的至少一个的总泵浦能量约为设置在两个相邻束腰之间的激光活性介质的总泵浦能量的一半。

公开(公告)号：US07142354B2

公开(公告)日：2006-11-28

申请号：US10511170

申请日：2001-12-12

申请人： Tetsuo Kojima ,  Susumu Konno ,  Shuichi Fujikawa ,  Koji Yasui ,  Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura

发明人： Tetsuo Kojima ,  Susumu Konno ,  Shuichi Fujikawa ,  Koji Yasui ,  Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura

IPC分类号： G02F1/35 ,  H01S3/108

CPC分类号： G02F1/3501 ,  G02F2001/3505

摘要： In a wavelength converting method, an ambient that is in contact with a surface of a non-linear optical crystal from which wavelength-converted light is outputted is a gas that is lower in content of nitrogen than air. A wavelength converting device includes a device for controlling the ambient in contact with a surface of the non-linear optical crystal from which the wavelength-converted light is outputted so the ambient is lower in nitrogen than air. A laser machining device includes the wavelength converting device.

摘要翻译： 在波长转换方法中，与输出波长转换光的非线性光学晶体的表面接触的环境是氮含量低于空气的气体。 波长转换装置包括用于控制与非线性光学晶体的表面接触的环境的装置，从该波长转换光输出波长转换的光，使得氮气中的环境比空气低。 激光加工装置包括波长转换装置。

公开(公告)号：US06393034B1

公开(公告)日：2002-05-21

申请号：US09477706

申请日：2000-01-05

申请人： Susumu Konno ,  Shuichi Fujikawa ,  Tetsuo Kojima

发明人： Susumu Konno ,  Shuichi Fujikawa ,  Tetsuo Kojima

IPC分类号： H01S311

CPC分类号： H01S3/109 ,  H01S3/08 ,  H01S3/08059 ,  H01S3/08072 ,  H01S3/0815 ,  H01S3/11

摘要： An intracavity wavelength conversion laser apparatus has a stable resonator in which a solid-state laser active medium, a resonator Q-value modulating element, and a wavelength conversion crystal, a nonlinear element, are arranged along a laser optical axis for generating a Q pulse wavelength conversion laser beam. A mirror constituting the stable resonator, which is positioned close to the wavelength conversion crystal, is a convex mirror, whereby the Q pulse wavelength conversion laser beam has a short pulse width. The laser apparatus is easily operated with high efficiency and has a small size. The Q pulse wavelength conversion laser beam is generated with excellent reproducibility and stability, and the wavelength conversion crystal is less susceptible to optical damage.

摘要翻译： 腔内波长转换激光装置具有稳定的谐振器，其中固体激光器活性介质，谐振器Q值调制元件和波长转换晶体，非线性元件沿激光光轴布置以产生Q脉冲 波长转换激光束。 构成靠近波长转换晶体的稳定谐振器的反射镜是凸面镜，由此Q脉冲波长转换激光束具有短的脉冲宽度。 激光装置容易操作，效率高，体积小。 产生Q脉冲波长转换激光束具有优异的再现性和稳定性，并且波长转换晶体不易受光损伤。

公开(公告)号：US20050225837A1

公开(公告)日：2005-10-13

申请号：US10511170

申请日：2001-12-12

申请人： Tetsuo Kojima ,  Susumu Konno ,  Shuichi Fujikawa ,  Koji Yasui ,  Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura

发明人： Tetsuo Kojima ,  Susumu Konno ,  Shuichi Fujikawa ,  Koji Yasui ,  Takatomo Sasaki ,  Yusuke Mori ,  Masashi Yoshimura

IPC分类号： G02F1/35 ,  G02F2/02

CPC分类号： G02F1/3501 ,  G02F2001/3505

摘要： In a wavelength converting method, an ambient that is in contact with a surface of a non-linear optical crystal from which wavelength-converted light is outputted is a gas that is lower in content of nitrogen than air. A wavelength converting device includes a device for controlling the ambient in contact with a surface of the non-linear optical crystal from which the wavelength-converted light is outputted so the ambient is lower in nitrogen than air. A laser machining device includes the wavelength converting device.

摘要翻译： 在波长转换方法中，与输出波长转换光的非线性光学晶体的表面接触的环境是氮含量低于空气的气体。 波长转换装置包括用于控制与非线性光学晶体的表面接触的环境的装置，从该波长转换光输出波长转换的光，使得氮气中的环境比空气低。 激光加工装置包括波长转换装置。

公开(公告)号：US09188834B2

公开(公告)日：2015-11-17

申请号：US14007469

申请日：2012-03-13

申请人： Shuichi Fujikawa ,  Susumu Konno ,  Keisuke Furuta ,  Tomotaka Katsura

发明人： Shuichi Fujikawa ,  Susumu Konno ,  Keisuke Furuta ,  Tomotaka Katsura

IPC分类号： G02F1/35 ,  G02F1/37 ,  G02F1/355 ,  H01S3/109 ,  H01S3/08 ,  H01S3/081 ,  H01S3/082 ,  H01S3/0941 ,  H01S3/117 ,  H01S3/16 ,  H01S3/00

CPC分类号： G02F1/37 ,  G02F1/3551 ,  G02F2001/354 ,  H01S3/0092 ,  H01S3/08054 ,  H01S3/08059 ,  H01S3/0815 ,  H01S3/082 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/117 ,  H01S3/1611 ,  H01S3/1643

摘要： A wavelength conversion crystal including: a single nonlinear optical crystal which satisfies both of a first phase-matching condition and a second phase-matching condition, the first phase-matching condition being required for first wavelength conversion to convert a fundamental wave having a wavelength of 1064 nm into a second harmonic having a wavelength of 532 nm, and the second phase-matching condition being required for second wavelength conversion to convert the light having a wavelength of 532 nm into a fourth harmonic having a wavelength of 266 nm; and a first reflective face and a second reflective face for reflecting the light having a wavelength of 532 nm generated by the first wavelength conversion to supply it to the second wavelength conversion. This approach can efficiently generate a third or higher-order harmonic with a reliable and simple configuration.

摘要翻译： 一种波长转换晶体，包括：单一非线性光学晶体，其满足第一相位匹配条件和第二相位匹配条件，第一相位匹配条件是第一波长转换所需的，以将波长为 1064nm变为波长为532nm的二次谐波，第二波长转换所需的第二相位匹配条件将波长为532nm的光转换成波长为266nm的四次谐波; 以及第一反射面和第二反射面，用于反射通过第一波长转换产生的波长为532nm的光，以将其提供给第二波长转换。 这种方法可以有效地生成具有可靠和简单配置的第三或更高次谐波。

公开(公告)号：US20140016186A1

公开(公告)日：2014-01-16

申请号：US14007469

申请日：2012-03-13

申请人： Shuichi Fujikawa ,  Susumu Konno ,  Keisuke Furuta ,  Tomotaka Katsura

发明人： Shuichi Fujikawa ,  Susumu Konno ,  Keisuke Furuta ,  Tomotaka Katsura

IPC分类号： G02F1/37

CPC分类号： G02F1/37 ,  G02F1/3551 ,  G02F2001/354 ,  H01S3/0092 ,  H01S3/08054 ,  H01S3/08059 ,  H01S3/0815 ,  H01S3/082 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/117 ,  H01S3/1611 ,  H01S3/1643

摘要： A wavelength conversion crystal including: a single nonlinear optical crystal which satisfies both of a first phase-matching condition and a second phase-matching condition, the first phase-matching condition being required for first wavelength conversion to convert a fundamental wave having a wavelength of 1064 nm into a second harmonic having a wavelength of 532 nm, and the second phase-matching condition being required for second wavelength conversion to convert the light having a wavelength of 532 nm into a fourth harmonic having a wavelength of 266 nm; and a first reflective face and a second reflective face for reflecting the light having a wavelength of 532 nm generated by the first wavelength conversion to supply it to the second wavelength conversion. This approach can efficiently generate a third or higher-order harmonic with a reliable and simple configuration.

摘要翻译： 一种波长转换晶体，包括：单一非线性光学晶体，其满足第一相位匹配条件和第二相位匹配条件，第一相位匹配条件是第一波长转换所需的，以将波长为 1064nm变为波长为532nm的二次谐波，第二波长转换所需的第二相位匹配条件将波长为532nm的光转换成波长为266nm的四次谐波; 以及第一反射面和第二反射面，用于反射通过第一波长转换产生的波长为532nm的光，以将其提供给第二波长转换。 这种方法可以有效地生成具有可靠和简单配置的第三或更高次谐波。

公开(公告)号：US07170911B2

公开(公告)日：2007-01-30

申请号：US10940817

申请日：2004-09-15

申请人： Tomotaka Katsura ,  Susumu Konno ,  Tetsuo Kojima ,  Junichi Nishimae

发明人： Tomotaka Katsura ,  Susumu Konno ,  Tetsuo Kojima ,  Junichi Nishimae

IPC分类号： H01S3/109

CPC分类号： H01S3/109 ,  G02F2001/3503 ,  G02F2001/3505 ,  G02F2001/354 ,  H01S3/005 ,  H01S3/1611 ,  H01S3/1643

摘要： A wavelength conversion apparatus in which output direction of a wavelength-converted laser beam, having a wavelength converted by a nonlinear optical crystal and emitted through an output-window, can be brought close to the direction of optical axis of the laser beam passing through the nonlinear optical crystal. In addition, axial deviation of the wavelength-converted laser beam converted by the nonlinear optical crystal and emitted through an output-window, can be reduced when the position of the nonlinear optical crystal is moved. The output facet of the nonlinear optical crystal is inclined at Brewster's angle with respect to the wavelength-converted laser beam. An output-window of a case containing the nonlinear optical crystal has a prism form in which the distance between a laser beam input facet and a laser beam output facet of the output-window is reduced along a direction in which the wavelength-converted laser beam, emitted from the nonlinear optical crystal, inclines.

摘要翻译： 一种波长转换装置，其中具有由非线性光学晶体转换并通过输出窗口发射的波长的波长转换激光束的输出方向可以靠近通过该激光束的激光束的光轴方向 非线性光学晶体。 此外，当非线性光学晶体的位置移动时，可以减少由非线性光学晶体转换并通过输出窗口发射的波长转换的激光束的轴向偏移。 非线性光学晶体的输出面相对于波长转换的激光束以布鲁斯特角倾斜。 包含非线性光学晶体的壳体的输出窗口具有棱镜形式，其中激光束输入面与输出窗口的激光束输出面之间的距离沿着波长转换激光束 ，从非线性光学晶体发射，倾斜。

公开(公告)号：US5892789A

公开(公告)日：1999-04-06

申请号：US899889

申请日：1997-07-24

申请人： Koji Yasui ,  Takafumi Kawai ,  Tetsuo Kojima ,  Susumu Konno

发明人： Koji Yasui ,  Takafumi Kawai ,  Tetsuo Kojima ,  Susumu Konno

IPC分类号： H01S3/07 ,  H01S3/08 ,  H01S3/091 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/109 ,  H01S3/136 ,  H01S3/16 ,  H01S3/23 ,  H01S3/14

CPC分类号： H01S3/025 ,  H01S3/07 ,  H01S3/10 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/08072 ,  H01S3/093 ,  H01S3/094057 ,  H01S3/0941 ,  H01S3/109

摘要： A solid-state laser apparatus comprises a plurality of solid-state materials each having an active solid-state medium and arranged in a row with a predetermined space on an optical axis of light incident thereon. An optical rotation material and an angle adjusting instrument for adjusting an angle between the optical rotation material and the optical axis of incident light are disposed in at least a space selected from among the plural spaces. The laser apparatus further comprises a laser optical system for extracting a laser beam emitted by the plural solid-state materials.

摘要翻译： 固体激光装置包括多个固态材料，每个固态材料具有活性固态介质，并且在入射到其上的光的光轴上以预定的空间排成一行。 用于调整光旋转材料与入射光的光轴之间的角度的光学旋转材料和角度调节装置设置在从多个空间中选择的至少一个空间中。 激光装置还包括用于提取由多个固态材料发射的激光束的激光光学系统。

公开(公告)号：US20050068998A1

公开(公告)日：2005-03-31

申请号：US10940817

申请日：2004-09-15

申请人： Tomotaka Katsura ,  Susumu Konno ,  Tetsuo Kojima ,  Junichi Nishimae

发明人： Tomotaka Katsura ,  Susumu Konno ,  Tetsuo Kojima ,  Junichi Nishimae

IPC分类号： G02F1/37 ,  G02F1/015 ,  G02F2/02 ,  H01L21/02 ,  H01S3/00 ,  H01S3/10 ,  H01S3/109 ,  H01S3/16

CPC分类号： H01S3/109 ,  G02F2001/3503 ,  G02F2001/3505 ,  G02F2001/354 ,  H01S3/005 ,  H01S3/1611 ,  H01S3/1643

摘要： A wavelength conversion apparatus in which output direction of a wavelength-converted laser beam, having a wavelength converted by a nonlinear optical crystal and emitted through an output-window, can be brought close to the direction of optical axis of the laser beam passing through the nonlinear optical crystal. In addition, axial deviation of the wavelength-converted laser beam converted by the nonlinear optical crystal and emitted through an output-window, can be reduced when the position of the nonlinear optical crystal is moved. The output facet of the nonlinear optical crystal is inclined at Brewster's angle with respect to the wavelength-converted laser beam. An output-window of a case containing the nonlinear optical crystal has a prism form in which the distance between a laser beam input facet and a laser beam output facet of the output-window is reduced along a direction in which the wavelength-converted laser beam, emitted from the nonlinear optical crystal, inclines.

摘要翻译： 一种波长转换装置，其中具有由非线性光学晶体转换并通过输出窗口发射的波长的波长转换激光束的输出方向可以靠近通过该激光束的激光束的光轴方向 非线性光学晶体。 此外，当非线性光学晶体的位置移动时，可以减少由非线性光学晶体转换并通过输出窗口发射的波长转换的激光束的轴向偏移。 非线性光学晶体的输出面相对于波长转换的激光束以布鲁斯特角倾斜。 包含非线性光学晶体的壳体的输出窗口具有棱镜形式，其中激光束输入面与输出窗口的激光束输出面之间的距离沿着波长转换激光束 ，从非线性光学晶体发射，倾斜。

公开(公告)号：US07286282B2

公开(公告)日：2007-10-23

申请号：US10853223

申请日：2004-05-26

申请人： Tetsuo Kojima ,  Susumu Konno ,  Junichi Nishimae ,  Shinsuke Yura ,  Kazutoshi Morikawa ,  Atsuhiro Sono ,  Yukio Sato

发明人： Tetsuo Kojima ,  Susumu Konno ,  Junichi Nishimae ,  Shinsuke Yura ,  Kazutoshi Morikawa ,  Atsuhiro Sono ,  Yukio Sato

IPC分类号： G02F1/35 ,  H01S3/10

CPC分类号： G02F1/353

摘要： A fundamental laser beam is wavelength converted through nonlinear optical crystals by traveling in one direction, sequentially through two nonlinear optical crystals arranged in series. A wavelength-converted laser beam is generated and includes wavelength-converted laser beams having polarized directions differing from each other by angles in a range from 45° to 90°. The two nonlinear optical crystals have crystal orientation axes differing by 45° to 90° when viewed along the optical axis of the laser beam.

摘要翻译： 通过沿一个方向行进，通过非线性光学晶体波长转换基本激光束，依次通过串联布置的两个非线性光学晶体。 产生波长转换的激光束，并且包括波长转换的激光束，其具有彼此相差45°至90°的角度的偏振方向。 当沿着激光束的光轴观察时，两个非线性光学晶体具有45°至90°的晶体取向轴。