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

IPC分类号： H01S3/09 ,  H01S3/091

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。

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。

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。

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：US20130109128A1

公开(公告)日：2013-05-02

申请号：US13698068

申请日：2010-05-17

申请人： Tomotaka Katsura ,  Kunihiko NIshimura ,  Shinya Nishimura ,  Tatsuki Okamoto ,  Shuichi Fujikawa

发明人： Tomotaka Katsura ,  Kunihiko NIshimura ,  Shinya Nishimura ,  Tatsuki Okamoto ,  Shuichi Fujikawa

IPC分类号： H01L31/18

CPC分类号： H01L31/18 ,  H01L31/02363 ,  Y02E10/50

摘要： In order to form a texture structure of inverse pyramid concavities with high speed and accuracy, when a reflection preventing texture is formed on a surface of a photovoltaic power device by laser patterning of an etching resistance film and wet etching, a plurality of laser apertures are machined in a diagonal direction of a square to be a base of the intended pyramid concavity by using a pulse laser and a laser beam splitting means, and a laser aperture pitch between the squares is set to be larger than a pitch on the diagonal.

摘要翻译： 为了以高速度和精度形成反棱锥体的纹理结构，当通过抗蚀剂膜的激光图案化和湿蚀刻在光伏电力装置的表面上形成防反射纹理时，多个激光孔径 通过使用脉冲激光器和激光束分离装置在正方形的对角线方向上加工成为所需金字塔凹面的基部，并且将平方之间的激光孔径间距设置为大于对角线上的间距。

公开(公告)号：US07386022B2

公开(公告)日：2008-06-10

申请号：US10545614

申请日：2003-03-17

申请人： Shuichi Fujikawa ,  Takafumi Kawai ,  Keisuke Furuta ,  Masaki Seguchi

发明人： Shuichi Fujikawa ,  Takafumi Kawai ,  Keisuke Furuta ,  Masaki Seguchi

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。

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：US06898230B2

公开(公告)日：2005-05-24

申请号：US09985471

申请日：2001-11-02

申请人： Shuichi Fujikawa ,  Koji Yasui

发明人： Shuichi Fujikawa ,  Koji Yasui

IPC分类号： G02F1/37 ,  H01S3/04 ,  H01S3/042 ,  H01S3/06 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/109 ,  H01S3/113 ,  H01S3/16 ,  H01S3/23 ,  H01S5/028 ,  H01S5/40 ,  H01S3/091

CPC分类号： H01S3/0941 ,  H01S3/025 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0625 ,  H01S3/07 ,  H01S3/08059 ,  H01S3/08095 ,  H01S3/09408 ,  H01S3/094084 ,  H01S3/1618 ,  H01S3/1643 ,  H01S5/024 ,  H01S5/14 ,  H01S5/4031 ,  H01S5/4062

摘要： A semiconductor laser array is located beside a solid state laser element, and an optical resonator for excitation light includes a coating highly reflective to an oscillation wavelength of the semiconductor laser array on an end face of the semiconductor laser array, opposite from the solid state laser element and a side of the solid state laser element. The solid state laser element is located inside of the optical resonator, and the solid state laser element is excited optically by the excitation light.

摘要翻译： 半导体激光器阵列位于固体激光元件旁边，激发光的光谐振器包括与半导体激光器阵列的端面上的半导体激光器阵列的振荡波长高度反射的涂层，与固态激光器相反 元件和固体激光元件的一侧。 固态激光元件位于光谐振器的内部，固体激光元件被激发光光学激发。

公开(公告)号：US5313487A

公开(公告)日：1994-05-17

申请号：US887770

申请日：1992-05-22

申请人： Shuichi Fujikawa ,  Mitsuo Inoue ,  Yukio Sato ,  Haruhiko Nagai

发明人： Shuichi Fujikawa ,  Mitsuo Inoue ,  Yukio Sato ,  Haruhiko Nagai

IPC分类号： H01S3/0977 ,  H01S3/097

CPC分类号： H01S3/0977 ,  H01S3/09775

摘要： At least two types of preionization systems are provided at a backside of one of a pair of primary electrodes which are disposed in a spaced opposed relation with respect to each other for causing a large area, spatially uniform main discharge in a laser gas therebetween. This improves efficiency and stability in laser oscillations under repeated operations at a high rate of tens to hundreds of shots per second. In addition, without using the laser output power, the preionization timing is controlled such that an optimal preionization timing is realized. The optimal preionization timing is determined on the basis of a minimum discharge starting voltage between the primary electrodes or a minimum required time from the time of applying a high voltage between said first and second primary electrodes until the time the main discharge commences.

摘要翻译： 在一对主电极之一的背面设置至少两种类型的预电离系统，这些主电极相对于彼此以间隔开的相对关系设置，以在它们之间的激光气体中引起大面积的空间均匀的主放电。 这样可以在每秒数十到数百次的高速率重复操作下提高激光振荡的效率和稳定性。 此外，在不使用激光输出功率的情况下，控制预定时定时，从而实现最佳的初步化定时。 基于初级电极之间的最小放电起始电压或从在所述第一和第二主电极之间施加高电压直到主放电开始时的最小所需时间来确定最佳预电离定时。