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公开(公告)号：US08873599B2
公开(公告)日：2014-10-28
申请号：US13824432
申请日：2011-08-26
CPC分类号： H01S3/038 , H01S3/036 , H01S3/2232 , H01S2301/203
摘要： A tri-axially orthogonal gas laser device in which an optical axis of an optical resonator, a direction in which a laser gas is supplied into the optical resonator, and a direction of discharge for exciting the laser gas are mutually orthogonal to one another, the device including: an exciting unit including a blower supplying the laser gas in −X direction to the optical axis of the optical resonator, and a discharge electrode pair which is shifted on a gas upstream side with respect to the optical axis; and an exciting unit including a blower for supplying the laser gas in +X direction to the optical axis of the optical resonator, and a discharge electrode pair which is shifted on a gas upstream side with respect to the optical axis
摘要翻译： 将光谐振器的光轴，向光谐振器供给激光气体的方向以及使激光气体激发的方向相互正交的三轴正交气体激光装置相互正交， 该装置包括：激励单元，其包括向所述光学谐振器的光轴向-X方向供给激光气体的鼓风机;以及在相对于所述光轴的气体上游侧移动的放电电极对; 以及激励单元，其包括用于将激光气体沿+ X方向供给到光谐振器的光轴的鼓风机，以及在相对于光轴的气体上游侧移动的放电电极对
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公开(公告)号：US20130235894A1
公开(公告)日：2013-09-12
申请号：US13824432
申请日：2011-08-26
IPC分类号： H01S3/038
CPC分类号： H01S3/038 , H01S3/036 , H01S3/2232 , H01S2301/203
摘要： A tri-axially orthogonal gas laser device in which an optical axis of an optical resonator, a direction in which a laser gas is supplied into the optical resonator, and a direction of discharge for exciting the laser gas are mutually orthogonal to one another, the device including: an exciting unit including a blower supplying the laser gas in −X direction to the optical axis of the optical resonator, and a discharge electrode pair which is shifted on a gas upstream side with respect to the optical axis; and an exciting unit including a blower for supplying the laser gas in +X direction to the optical axis of the optical resonator, and a discharge electrode pair which is shifted on a gas upstream side with respect to the optical axis
摘要翻译： 将光谐振器的光轴，向光谐振器供给激光气体的方向以及使激光气体激发的方向相互正交的三轴正交气体激光装置相互正交， 该装置包括：激励单元，其包括向所述光学谐振器的光轴向-X方向供给激光气体的鼓风机;以及在相对于所述光轴的气体上游侧移动的放电电极对; 以及激励单元，其包括用于将激光气体沿+ X方向供给到光谐振器的光轴的鼓风机，以及在相对于光轴的气体上游侧移动的放电电极对
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公开(公告)号：US08885684B2
公开(公告)日：2014-11-11
申请号：US14123903
申请日：2011-06-20
CPC分类号： H01S3/041 , H01S3/03 , H01S3/036 , H01S3/076 , H01S3/081 , H01S3/0816 , H01S3/0971 , H01S3/2232
摘要： A CO2 gas laser device according to the present invention amplifies CO2 laser light that oscillates repeatedly in short pulses having a pulse width of 100 ns or less, and cools a CO2 laser gas which is excited by continuous discharge by circulating the CO2 laser gas by means of forced convection. Therein, an angle θ defined by the optical axis of the amplified CO2 laser beam and the flow direction of the CO2 laser gas caused by the forced convection is determined by both a discharge cross sectional area and a discharge length of a volume in which the CO2 laser gas is excited by discharge, whereby increasing the gain of pulsed laser to achieve pulsed laser light having an extremely high average output power.
摘要翻译： 根据本发明的二氧化碳气体激光装置放大以脉冲宽度为100ns以下的短脉冲重复振荡的CO 2激光，并通过循环CO 2激光气体的方式冷却通过连续放电而激发的CO 2激光气体 的强制对流。 其中，角度和角度; 由放大的CO 2激光束的光轴限定，并且由强制对流引起的CO 2激光气体的流动方向由放电截面积和其中激发CO 2激光气体的体积的放电长度 从而增加脉冲激光器的增益以实现具有极高平均输出功率的脉冲激光。
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公开(公告)号：US20130341309A1
公开(公告)日：2013-12-26
申请号：US14003678
申请日：2012-03-13
IPC分类号： B23K26/00
CPC分类号： B23K26/00 , B23K26/046 , B23K26/0643 , B23K26/0665 , B23K26/707
摘要： A laser machining apparatus, including: a laser light source; a transparent member that is set on an optical path of a laser beam and transmits the laser beam; a contact type temperature difference sensor, set on a surface of the transparent member outside an irradiation range of the laser beam, for detecting a temperature difference between a surface of the transparent member, which is spaced apart from a center of the transparent member by a first distance, and another surface of the transparent member, which is spaced apart from the center of the transparent member by a second distance larger than the first distance; and a controller correcting a focal position based on the temperature difference detected by the contact type temperature difference sensor to stabilize a beam diameter of the laser beam condensed onto a machining object.
摘要翻译： 一种激光加工装置，包括：激光光源; 透明构件，其被设置在激光束的光路上并透射激光束; 接触式温度差传感器，设置在所述透明构件的表面上，位于所述激光束的照射范围之外，用于检测所述透明构件的与所述透明构件的中心间隔开的表面之间的温度差 第一距离和透明构件的另一个表面，其与透明构件的中心距离大于第一距离的第二距离; 以及控制器，基于由接触型温度差传感器检测的温度差校正焦点位置，以稳定在加工对象物上聚光的激光束的光束直径。
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公开(公告)号：US20140112362A1
公开(公告)日：2014-04-24
申请号：US14123903
申请日：2011-06-20
IPC分类号： H01S3/041
CPC分类号： H01S3/041 , H01S3/03 , H01S3/036 , H01S3/076 , H01S3/081 , H01S3/0816 , H01S3/0971 , H01S3/2232
摘要： A CO2 gas laser device according to the present invention amplifies CO2 laser light that oscillates repeatedly in short pulses having a pulse width of 100 ns or less, and cools a CO2 laser gas which is excited by continuous discharge by circulating the CO2 laser gas by means of forced convection. Therein, an angle θ defined by the optical axis of the amplified CO2 laser beam and the flow direction of the CO2 laser gas caused by the forced convection is determined by both a discharge cross sectional area and a discharge length of a volume in which the CO2 laser gas is excited by discharge, whereby increasing the gain of pulsed laser to achieve pulsed laser light having an extremely high average output power.
摘要翻译： 根据本发明的二氧化碳气体激光装置放大以脉冲宽度为100ns以下的短脉冲重复振荡的CO 2激光，并通过循环CO 2激光气体的方式冷却通过连续放电而激发的CO 2激光气体 的强制对流。 其中，角度和角度; 由放大的CO 2激光束的光轴限定，并且由强制对流引起的CO 2激光气体的流动方向由放电截面积和其中激发CO 2激光气体的体积的放电长度 从而增加脉冲激光器的增益以实现具有极高平均输出功率的脉冲激光。
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公开(公告)号：US20120182604A1
公开(公告)日：2012-07-19
申请号：US13496892
申请日：2010-09-17
CPC分类号： H01S3/0385 , H01S3/08036 , H01S3/08054 , H01S3/081
摘要： A laser oscillator includes: a optical resonator having an orthogonal mirror and a partial reflection mirror; a laser gas acting as a laser medium; and a 90-degree folding mirror acting as a polarization selecting element. The orthogonal mirror has two reflecting surfaces orthogonal to each other. The 90-degree folding mirror is arranged such that the polarization direction of the laser oscillated light is parallel to the reference axis set in a plane perpendicular to an optical axis of the optical resonator. The orthogonal mirror is arranged such that the polarization direction of the laser oscillated light is parallel to the valley line of the orthogonal mirror. This configuration can compensate anisotropy of optical characteristics in a laser medium, and stably generate linearly polarized laser light having excellent isotropy in a simple manner.
摘要翻译： 激光振荡器包括：具有正交反射镜和部分反射镜的光学谐振器; 作为激光介质的激光气体; 以及用作偏振选择元件的90度折叠镜。 正交反射镜具有彼此正交的两个反射表面。 90度折射镜被配置为使得激光振荡光的偏振方向平行于垂直于光学谐振器的光轴的平面中的参考轴。 正交反射镜被布置成使得激光振荡的光的偏振方向平行于正交反射镜的谷线。 这种构造可以补偿激光介质中的光学特性的各向异性，并且以简单的方式稳定地产生具有优异各向同性的线偏振激光。
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公开(公告)号：US09289850B2
公开(公告)日：2016-03-22
申请号：US14003678
申请日：2012-03-13
IPC分类号： B23K26/046 , B23K26/064 , B23K26/70 , B23K26/00 , B23K26/04 , B23K26/06
CPC分类号： B23K26/00 , B23K26/046 , B23K26/0643 , B23K26/0665 , B23K26/707
摘要： A laser machining apparatus, including: a laser light source; a transparent member that is set on an optical path of a laser beam and transmits the laser beam; a contact type temperature difference sensor, set on a surface of the transparent member outside an irradiation range of the laser beam, for detecting a temperature difference between a surface of the transparent member, which is spaced apart from a center of the transparent member by a first distance, and another surface of the transparent member, which is spaced apart from the center of the transparent member by a second distance larger than the first distance; and a controller correcting a focal position based on the temperature difference detected by the contact type temperature difference sensor to stabilize a beam diameter of the laser beam condensed onto a machining object.
摘要翻译： 一种激光加工装置，包括：激光光源; 透明构件，其被设置在激光束的光路上并透射激光束; 接触式温度差传感器，设置在所述透明构件的表面上，位于所述激光束的照射范围之外，用于检测所述透明构件的与所述透明构件的中心间隔开的表面之间的温度差 第一距离和透明构件的另一个表面，其与透明构件的中心距离大于第一距离的第二距离; 以及控制器，基于由接触型温度差传感器检测的温度差校正焦点位置，以稳定在加工对象物上聚光的激光束的光束直径。
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8.发明授权Gas discharge laser oscillator and gas discharge laser amplifier providing linearly polarized light 有权气体放电激光振荡器和气体放电激光放大器提供线性偏振光公开(公告)号：US08958453B2
公开(公告)日：2015-02-17
申请号：US13496892
申请日：2010-09-17
CPC分类号： H01S3/0385 , H01S3/08036 , H01S3/08054 , H01S3/081
摘要： A laser oscillator includes: a optical resonator having an orthogonal mirror and a partial reflection mirror; a laser gas acting as a laser medium; and a 90-degree folding mirror acting as a polarization selecting element. The orthogonal mirror has two reflecting surfaces orthogonal to each other. The 90-degree folding mirror is arranged such that the polarization direction of the laser oscillated light is parallel to the reference axis set in a plane perpendicular to an optical axis of the optical resonator. The orthogonal mirror is arranged such that the polarization direction of the laser oscillated light is parallel to the valley line of the orthogonal mirror. This configuration can compensate anisotropy of optical characteristics in a laser medium, and stably generate linearly polarized laser light having excellent isotropy in a simple manner.
摘要翻译： 激光振荡器包括：具有正交反射镜和部分反射镜的光学谐振器; 作为激光介质的激光气体; 以及用作偏振选择元件的90度折叠镜。 正交反射镜具有彼此正交的两个反射表面。 90度折射镜被配置为使得激光振荡光的偏振方向平行于垂直于光学谐振器的光轴的平面中的参考轴。 正交反射镜被布置成使得激光振荡的光的偏振方向平行于正交反射镜的谷线。 这种构造可以补偿激光介质中的光学特性的各向异性，并且以简单的方式稳定地产生具有优异各向同性的线偏振激光。
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9.发明授权Diode laser pumped solid state laser amplifier and diode laser pumped solid state laser 失效二极管激光泵浦固态激光放大器和二极管激光泵浦固态激光器公开(公告)号：US07796670B1
公开(公告)日：2010-09-14
申请号：US08938700
申请日：1997-09-26
申请人： Shuichi Fujikawa , Tetsuo Kojima
发明人： Shuichi Fujikawa , Tetsuo Kojima
CPC分类号： H01S3/0941 , H01S3/025 , H01S3/0407 , H01S3/042 , H01S3/0602 , H01S3/061 , H01S3/08072 , H01S3/094057 , H01S3/094084 , H01S3/2308
摘要： A diode laser pumped solid-state laser amplifier capable of homogenizing the distribution of heat dissipation levels on a section of a solid-state laser rod and not causing a bifocal phenomenon, and a diode laser pumped solid-state laser using the diode laser pumped solid-state laser amplifier. A diode laser pumped solid-state laser amplifier includes a solid-state laser rod having an optical axis along which a laser beam propagates and includes an active medium therein and a plurality of pumping sources having optical axes that run on a plane orthogonal to the axial core of the solid-state laser rod and are separated by a given distance from the axial core of the solid-state laser rod. When pumping light rays are projected on a plane orthogonal to the axial core of the solid-state laser rod, the plurality of pumping sources are located at equiangular intervals with respect to the axial core of the solid-state laser rod.
摘要翻译： 一种二极管激光泵浦固态激光放大器，其能够使固态激光棒的一部分上的散热水平分布均匀化并且不引起双焦现象，并且使用二极管激光泵浦固体的二极管激光泵浦固态激光器 状态激光放大器。 二极管激光泵浦固体激光放大器包括固态激光棒，其具有光轴，激光束沿着该光轴传播并且包括其中的有源介质，以及多个泵浦源，其具有在与轴向正交的平面上延伸的光轴 并且与固态激光棒的轴芯分开给定的距离。 当泵浦光线投射在与固态激光棒的轴向芯正交的平面上时，多个泵浦源相对于固态激光棒的轴向芯等角间隔设置。
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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
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。
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