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公开(公告)号：US06721346B2
公开(公告)日：2004-04-13
申请号：US09883956
申请日：2001-06-20
申请人： Yoko Inoue , Shuichi Fujikawa , Keisuke Furuta
发明人： Yoko Inoue , Shuichi Fujikawa , Keisuke Furuta
IPC分类号： H01S3091
CPC分类号： H01S3/0941 , H01S3/094057 , H01S3/094076 , H01S3/09408 , H01S3/1024 , H01S3/1028 , H01S5/06216 , H01S5/0622
摘要： A solid state laser excited by a semiconductor laser can generate a stable and highly efficient high power laser beam. The laser apparatus includes a solid state laser element containing an active medium, a semiconductor laser for optically exciting the solid state laser element, a power supply for supplying pulses of current having magnitudes that change with time during each pulse to the semiconductor laser, and an optical resonator for emission of a laser beam from the solid state laser element. When the semiconductor laser is driven with the pulses that change in magnitude during each pulse, it produces pulsed excitation light that excites the solid state laser element. A stable laser beam is produced because changes in thermally sensitive light-generating parameters of the semiconductor laser are compensated.
摘要翻译： 由半导体激光器激发的固态激光器可以产生稳定且高效的高功率激光束。 该激光装置包括：含有活性介质的固体激光元件，用于光学激发固体激光元件的半导体激光器;用于在每个脉冲期间向半导体激光器供给具有随时间变化的大小的电流脉冲的电源;以及 用于从固体激光元件发射激光束的光学谐振器。 当半导体激光器以每个脉冲内的幅度变化的脉冲驱动时，产生激发固态激光元件的脉冲激发光。 由于半导体激光器的热敏光产生参数的变化被补偿，所以产生稳定的激光束。
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公开(公告)号：US20060153258A1
公开(公告)日：2006-07-13
申请号：US10545614
申请日：2003-03-17
IPC分类号： H01S3/04
CPC分类号： H01S3/025 , H01S3/0407 , H01S3/042 , H01S3/061 , H01S3/094084 , H01S3/0941 , H01S3/1611 , H01S3/1643
摘要： A laser oscillator includes a light condensing block having a through-hole for housing a laser medium, and an aperture for introducing excitation light from an excitation light source module into the through-hole; an end plate fixed to an end of the light condensing block, in which a cooling water channel for leading cooling water to the light condensing block and a cooling water channel for leading cooling water to the excitation light source module are formed; and a flow tube fixed and sealed by the end plate, for forming a cooling water passage for the laser medium; and an excitation light source module in which a cooling water channel, communicating with the water channel for the excitation light source module in the end plate, is formed for cooling its excitation light source.
摘要翻译： 激光振荡器包括具有用于容纳激光介质的通孔的聚光块和用于将来自激发光源模块的激发光引入到通孔中的孔; 固定到聚光块的端部的端板，其中形成有用于将冷却水引导到聚光块的冷却水通道和用于将冷却水引导到激发光源模块的冷却水通道; 以及由所述端板固定和密封的流动管，用于形成用于所述激光介质的冷却水通道; 以及激励光源模块，其中形成有与端板中的激发光源模块的水通道连通的冷却水通道，用于冷却其激发光源。
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公开(公告)号：US09188834B2
公开(公告)日：2015-11-17
申请号：US14007469
申请日：2012-03-13
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。
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公开(公告)号：US20140016186A1
公开(公告)日：2014-01-16
申请号：US14007469
申请日：2012-03-13
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。
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公开(公告)号：US07386022B2
公开(公告)日：2008-06-10
申请号：US10545614
申请日：2003-03-17
IPC分类号： H01S3/04
CPC分类号： H01S3/025 , H01S3/0407 , H01S3/042 , H01S3/061 , H01S3/094084 , H01S3/0941 , H01S3/1611 , H01S3/1643
摘要： A laser oscillator includes a light condensing block having a through-hole for housing a laser medium, and an aperture for introducing excitation light from an excitation light source module into the through-hole; an end plate fixed to an end of the light condensing block, in which a cooling water channel for leading cooling water to the light condensing block and a cooling water channel for leading cooling water to the excitation light source module are formed; and a flow tube fixed and sealed by the end plate, for forming a cooling water passage for the laser medium; and an excitation light source module in which a cooling water channel, communicating with the water channel for the excitation light source module in the end plate, is formed for cooling its excitation light source.
摘要翻译： 激光振荡器包括具有用于容纳激光介质的通孔的聚光块和用于将来自激发光源模块的激发光引入到通孔中的孔; 固定到聚光块的端部的端板，其中形成有用于将冷却水引导到聚光块的冷却水通道和用于将冷却水引导到激发光源模块的冷却水通道; 以及由所述端板固定和密封的流动管，用于形成用于所述激光介质的冷却水通道; 以及激励光源模块，其中形成有与端板中的激发光源模块的水通道连通的冷却水通道，用于冷却其激发光源。
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6.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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公开(公告)号：US20080225922A1
公开(公告)日：2008-09-18
申请号：US10590191
申请日：2005-09-14
申请人： Shuichi Fujikawa , Takafumi Kawai , Junji Kano
发明人： Shuichi Fujikawa , Takafumi Kawai , Junji Kano
IPC分类号： H01S3/06
CPC分类号： H01S3/08 , G02B6/4206 , H01S3/005 , H01S3/061 , H01S3/07 , H01S3/0805 , H01S3/08072 , H01S3/2316
摘要： In a symmetrically stable optical resonator, a first reference plane is set at an arbitrary position between the end face (102), opposing a partial reflector (2), and the neutral point (101) of a rod type solid state laser medium (1), and an aperture (5) having a diameter substantially equal to that of the rod type solid state laser medium (1) is arranged at a position optically symmetric to the reference plane with the partial reflector (2) as a neutral point using a relay lens (6) and a coupling lens (7) arranged between the aperture (5) and an optical fiber (8), the first reference plane is transfer-relayed onto the incident end face of the optical fiber (8), and the aperture (5) is transferred onto the coupling lens (7) through the relay lens (6). Even when the focal length of thermal lens of the rod type solid state laser medium (1) or pointing of laser light is varied, beam transmission is performed by an optical fiber excellent in stability and reliability and condensation of laser light exiting the optical fiber is sustained constantly.
摘要翻译： 在对称稳定的光学谐振器中，将第一参考平面设置在与部分反射镜（2）相对的端面（102）与棒状固态激光介质（1）的中性点（101）之间的任意位置 ），并且具有与棒状固体激光介质（1）的直径基本相等的直径的孔（5）被布置在与参考平面光学对称的位置处，部分反射器（2）为中性点，使用 中继透镜（6）和布置在孔（5）和光纤（8）之间的耦合透镜（7），第一参考平面被传送到光纤（8）的入射端面上，并且 孔（5）通过中继透镜（6）被转印到耦合透镜（7）上。 即使棒状固体激光介质（1）的热透镜的焦距或者激光的指示变化，也可以通过光稳定性和可靠性优异的光纤进行光束透射，而离开光纤的激光的冷凝是 持续不断。
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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：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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