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31. 发明授权

US08958453B2 Gas discharge laser oscillator and gas discharge laser amplifier providing linearly polarized light 有权
标题翻译：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
申请人： Shuichi Fujikawa , Junichi Nishimae , Tatsuya Yamamoto , Yoichi Tanino
发明人： Shuichi Fujikawa , Junichi Nishimae , Tatsuya Yamamoto , Yoichi Tanino
IPC分类号： H01S3/22 , H01S3/08 , H01S3/038 , H01S3/081
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。

32. 发明申请

US20090080475A1 WAVELENGTH CONVERSION OPTICAL ELEMENT, METHOD FOR FABRICATING WAVELENGTH CONVERSION OPTICAL ELEMENT, WAVELENGTH CONVERSION DEVICE, ULTRAVIOLET LASER IRRADIATOR AND LASER MATERIAL PROCESSING SYSTEM 有权
标题翻译：波长转换光学元件，用于制造波长转换光学元件，波长转换器件，超紫外线激光辐射器和激光材料加工系统的方法
公开(公告)号：US20090080475A1
公开(公告)日：2009-03-26
申请号：US12233174
申请日：2008-09-18
申请人： Masashi YOSHIMURA , Takatomo Sasaki , Yusuke Mori , Muneyuki Nishioka , Tomotaka Katsura , Tetsuo Kojima , Junichi Nishimae
发明人： Masashi YOSHIMURA , Takatomo Sasaki , Yusuke Mori , Muneyuki Nishioka , Tomotaka Katsura , Tetsuo Kojima , Junichi Nishimae
IPC分类号： H01S3/10 , G02F1/35 , C01B35/10
CPC分类号： G02F1/37 , G02F1/3551 , G02F2001/3505 , G02F2001/354
摘要： An optical wavelength conversion element includes a cesium-lithium-borate crystal processed into a 10-mm long optical element cut in an orientation that allows a fourth harmonic of a Nd:YAG laser to be generated. A transmittance (Ta) at 3589 cm−1 in an infrared transmission spectrum of the optical element is used as an index that indicates a content of water impurities in the crystal and is independent of a polarization direction. An actual measurement of the transmittance Ta is at least 1%, without taking into account loss at an optically polished surface of the crystal. A wavelength conversion device, a ultraviolet laser irradiation apparatus, a laser processing system, and a method of manufacturing an optical wavelength conversion element are also described.
摘要翻译：光波长转换元件包括加工成允许产生Nd：YAG激光器的四次谐波的取向切割的10mm长的光学元件的铯 - 硼酸锂晶体。光学元件的红外透射光谱中的3589cm -1处的透射率（Ta）被用作指示晶体中的水杂质含量并且与偏振方向无关的指标。透射率Ta的实际测量值至少为1％，而不考虑在晶体的光学抛光表面处的损耗。还描述了波长转换装置，紫外激光照射装置，激光加工系统和制造光波长转换元件的方法。

33. 发明授权

US07336690B2 Solid-state laser system 失效
标题翻译：固态激光系统
公开(公告)号：US07336690B2
公开(公告)日：2008-02-26
申请号：US11090174
申请日：2005-03-28
申请人： Junichi Nishimae , Tetsuo Kojima
发明人： Junichi Nishimae , Tetsuo Kojima
IPC分类号： H01S3/08
CPC分类号： H01S3/0602 , H01S3/005 , H01S3/07 , H01S3/08 , H01S3/08072 , H01S3/0815 , H01S3/091 , H01S3/2316
摘要： A simple and high-reliability constitution provides a solid-state laser system that allows a high-output, long-pulse-width laser beam to be obtained.A solid-state laser system that includes a solid-state laser medium 1, a light source 2 for pumping the solid-state laser medium 1, two reflecting mirrors 3 and 4 for flanking the solid-state laser medium 1, thereby constituting a laser resonator, is constituted in such a manner that a virtual-mirror plane 5 is defined in the space between the solid-state laser medium 1 and the reflecting mirror 4; a lens 6 is provided between the virtual-mirror plane 5 and the reflecting mirror 4; and, by means of the forward and backward paths along the route from the virtual-mirror plane to the reflecting mirror by way of the lens, the virtual-mirror plane in the forward path and the virtual-mirror plane in the backward path are made in an optically conjugated relationship with each other.
摘要翻译：简单且高可靠性的结构提供了一种能够获得高输出，长脉冲宽度的激光束的固态激光系统。一种固体激光系统，包括固体激光介质1，用于泵浦固态激光介质1的光源2，用于固定固体激光介质1侧面的两个反射镜3和4，从而构成激光谐振器构成为在固体激光介质1和反射镜4之间的空间中限定虚拟镜面5; 在虚拟镜面5和反射镜4之间设置透镜6; 借助于通过镜头从虚拟镜面到反射镜的路径的前进和后退路径，使前向路径中的虚拟镜面和后向路径中的虚拟镜面成为彼此具有光学共轭关系。

34. 发明授权

US5586139A Laser system 失效
标题翻译：激光系统
公开(公告)号：US5586139A
公开(公告)日：1996-12-17
申请号：US525198
申请日：1995-09-08
申请人： Yushi Takenaka , Masaki Kuzumoto , Kenji Yoshizawa , Takashi Yamamoto , Masato Matsubara , Junichi Nishimae , Koji Yasui , Akihiro Otani
发明人： Yushi Takenaka , Masaki Kuzumoto , Kenji Yoshizawa , Takashi Yamamoto , Masato Matsubara , Junichi Nishimae , Koji Yasui , Akihiro Otani
IPC分类号： B23K26/06 , H01S3/036 , H01S3/06 , H01S3/07 , H01S3/08 , H01S3/0975 , H01S3/098 , H01S3/13 , H01S3/23 , H01S3/139
CPC分类号： B23K26/0608 , B23K26/06 , B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665 , B23K26/123 , H01S3/08059 , H01S3/036 , H01S3/076 , H01S3/08068 , H01S3/0975 , H01S3/2366
摘要： A laser system wherein, in order that a high-output and high-quality single mode of a cross sectional area larger than the beam diameter determined by the construction of a resonator can be obtained stably, although this has heretofore been impossible, there is used a coupling mirror provided with a partial reflection film and an antireflecting film, a laser beam mode is selected using the partial reflection film, a phase difference between laser beam portions caused by a difference in construction between the partial reflection film and the antireflecting film is compensated using a phase difference compensating means, and there is formed an aperture whose diameter is set to a value of not larger than four times the diameter of the partial reflection film.
摘要翻译：一种激光系统，其中为了稳定地获得横截面积大于通过谐振器结构确定的光束直径的高输出和高质量的单一模式，尽管迄今为止已经不可能使用设置有部分反射膜和抗反射膜的耦合镜，使用部分反射膜选择激光束模式，补偿由部分反射膜和抗反射膜之间的结构差引起的激光束部分之间的相位差使用相位差补偿装置，并且形成直径设定为不大于部分反射膜的直径的四倍的孔径。

35. 发明授权

US5125001A Solid laser device 失效
标题翻译：固体激光器件
公开(公告)号：US5125001A
公开(公告)日：1992-06-23
申请号：US598622
申请日：1990-10-15
申请人： Shigenori Yagi , Kazuki Kuba , Junichi Nishimae , Takashi Yamamoto
发明人： Shigenori Yagi , Kazuki Kuba , Junichi Nishimae , Takashi Yamamoto
IPC分类号： H01S3/06 , H01S3/08 , H01S3/081
CPC分类号： H01S3/081 , H01S3/0606 , H01S3/08081 , H01S2301/20 , H01S2301/203 , H01S3/0407 , H01S3/08059 , H01S3/08072 , H01S3/08095 , H01S3/092
摘要： This invention relates to a solid laser device with a slab-shaped laser medium. One example of a solid laser device according to the invention, comprises: a slab-shaped laser medium having one pair of optically smooth surfaces confronting each other through the optical path; first and second mirrors arranged on the optical path in such a manner that the first and second mirrors are confronted with each other through the laser medium; a resonator which forms an unstable resonator in the direction of width of the laser medium, and a low order stable resonator in the direction of thickness of the laser medium; and laser beam emergence medium for taking a laser beam out of the a resonator and outputting the laser beam from the device. Another example comprises: a slab-shaped laser medium having a pair of optically smooth surfaces confronting each other through the optical path; first and second mirrors arranged on the optical path in such a manner that the first and second mirrors are confronted with each other through the laser medium; a resonator which forms unstable resonators in the direction of width of the laser medium and in the direction of thickness of the same; and laser beam emergence medium for taking a laser beam out of the a resonator and outputting the laser beam from the device. Accordingly, the solid laser devices can output a high power laser beam excellent in convergence, thus being applicable to precision laser machining operations.
摘要翻译： PCT No.PCT / JP90 / 00182 Sec。 371 1990年10月15日第 102（e）1990年10月15日日期PCT提交1990年2月15日PCT公布。 WO90 / 09690 PCT出版物日本1990年8月23日。本发明涉及具有板状激光介质的固体激光装置。根据本发明的固体激光装置的一个实例包括：具有通过光路彼此相对的一对光学平滑表面的板状激光介质; 第一和第二反射镜以这样的方式布置在光路上，使得第一和第二反射镜通过激光介质相互面对; 在激光介质的宽度方向上形成不稳定谐振器的谐振器，以及在激光介质的厚度方向上的低阶稳定谐振器; 以及用于将激光束从谐振器中取出并从该器件输出激光束的激光束出射介质。另一实例包括：具有通过光路彼此面对的一对光学平滑表面的板状激光介质; 第一和第二反射镜以这样的方式布置在光路上，使得第一和第二反射镜通过激光介质相互面对; 谐振器，其在激光介质的宽度方向和其厚度方向上形成不稳定的谐振器; 以及用于将激光束从谐振器中取出并从该器件输出激光束的激光束出射介质。因此，固体激光装置能够输出收敛性优异的高功率激光束，因此适用于精密激光加工操作。

36. 发明授权

US4890294A Plasma apparatus 失效
标题翻译：等离子体仪器
公开(公告)号：US4890294A
公开(公告)日：1989-12-26
申请号：US147726
申请日：1988-01-25
申请人： Junichi Nishimae , Kenji Yoshizawa , Masakazu Taki , Yoshihiro Ueda , Tadashi Yanagi , Akihiko Iwata
发明人： Junichi Nishimae , Kenji Yoshizawa , Masakazu Taki , Yoshihiro Ueda , Tadashi Yanagi , Akihiko Iwata
IPC分类号： H01J37/32 , H01S3/03 , H01S3/0975 , H05H1/46
CPC分类号： H01J37/32192 , H01J37/32339 , H01S3/0315 , H01S3/0975 , H05H1/46
摘要： The invention relates to a plasma apparatus where plasma is generated utilizing microwave discharge and laser excitation is performed and plasma processing is performed. More specifically, in a plasma apparatus where a microwave from a microwave oscillator is transmitted through a microwave transmission path to a microwave circuit, and plasma is generated by a microwave discharge within the microwave circuit, a plasma generating medium for generating the plasma is filled in a space formed between a conductor wall constituting a part of the microwave circuit and a dielectric installed opposite to the conductor wall, and the microwave circuit forms microwave mode having an electric field component orthogonal to the boundary between the dielectric and the plasma.
摘要翻译：本发明涉及一种使用微波放电产生等离子体并进行激光激发并进行等离子体处理的等离子体装置。更具体地，在微波振荡器的微波通过微波传输路径传输到微波电路的等离子体装置中，并且通过微波电路内的微波放电产生等离子体，用于产生等离子体的等离子体产生介质被填充在构成微波电路的一部分的导体壁与与导体壁相对设置的电介质之间形成的空间，微波电路形成具有与电介质和等离子体之间的边界正交的电场分量的微波模式。

37. 发明授权

US07948673B2 Optical wavelength conversion element having a cesium-lithium-borate crystal 有权
标题翻译：具有铯 - 硼酸锂晶体的光波长转换元件
公开(公告)号：US07948673B2
公开(公告)日：2011-05-24
申请号：US12233174
申请日：2008-09-18
申请人： Masashi Yoshimura , Takatomo Sasaki , Yusuke Mori , Muneyuki Nishioka , Tomotaka Katsura , Tetsuo Kojima , Junichi Nishimae
发明人： Masashi Yoshimura , Takatomo Sasaki , Yusuke Mori , Muneyuki Nishioka , Tomotaka Katsura , Tetsuo Kojima , Junichi Nishimae
IPC分类号： G02F1/35 , H01S3/10
CPC分类号： G02F1/37 , G02F1/3551 , G02F2001/3505 , G02F2001/354
摘要： An optical wavelength conversion element includes a cesium-lithium-borate crystal processed into a 10-mm long optical element cut in an orientation that allows a fourth harmonic of a Nd:YAG laser to be generated. A transmittance (Ta) at 3589 cm−1 in an infrared transmission spectrum of the optical element is used as an index that indicates a content of water impurities in the crystal and is independent of a polarization direction. An actual measurement of the transmittance Ta is at least 1%, without taking into account loss at an optically polished surface of the crystal. A wavelength conversion device, a ultraviolet laser irradiation apparatus, a laser processing system, and a method of manufacturing an optical wavelength conversion element are also described.
摘要翻译：光波长转换元件包括加工成允许产生Nd：YAG激光器的四次谐波的取向切割的10mm长的光学元件的铯 - 硼酸锂晶体。光学元件的红外透射光谱中的3589cm -1处的透射率（Ta）被用作指示晶体中的水杂质含量并且与偏振方向无关的指标。透射率Ta的实际测量值至少为1％，而不考虑在晶体的光学抛光表面处的损耗。还描述了波长转换装置，紫外激光照射装置，激光加工系统和制造光波长转换元件的方法。

38. 发明授权

US06304475B1 Switching power supply for gas laser 有权
标题翻译：气体激光开关电源
公开(公告)号：US06304475B1
公开(公告)日：2001-10-16
申请号：US09252452
申请日：1999-02-18
申请人： Akihiko Iwata , Junichi Nishimae , Masaaki Tanaka , Takashi Kumagai , Masato Matsubara
发明人： Akihiko Iwata , Junichi Nishimae , Masaaki Tanaka , Takashi Kumagai , Masato Matsubara
IPC分类号： H02M75387
CPC分类号： H01S3/0975
摘要： A laser power supply apparatus supplies AC power to a gas contained in a laser device by way of a pair of dielectric layers, without having to use a transformer to form a high-frequency discharge in a gas to excite the gas, to cause the laser device to radiate. The laser power supply apparatus includes an inverter having arms, each arm including high-speed semiconductor switches connected in series, for directly converting a DC high voltage from a DC power supply to a series of AC output pulses having a much higher AC voltage than the DC high voltage and supplied to the laser device by simultaneously turning on and off those high-speed semiconductor switches in each of the arms, and for furnishing the series of AC output pulses to the laser device at a pair of output terminals.
摘要翻译：激光供电装置通过一对电介质层向包含在激光装置中的气体提供AC电力，而不必使用变压器在气体中形成高频放电以激发气体，从而使激光设备辐射。激光电源装置包括具有臂的逆变器，每个臂包括串联连接的高速半导体开关，用于将直流电压直流转换成具有比该直流电源高得多的交流电压的一系列交流输出脉冲 DC高电压，并且通过同时打开和关闭每个臂中的那些高速半导体开关并将一系列AC输出脉冲提供给激光装置，并在一对输出端子处提供给激光装置。

39. 发明授权

US5506858A Laser system with transverse mode selecting output coupler 失效
标题翻译：激光系统，横向选择输出耦合器
公开(公告)号：US5506858A
公开(公告)日：1996-04-09
申请号：US121347
申请日：1993-09-15
申请人： Yushi Takenaka , Masaki Kuzumoto , Kenji Yoshizawa , Takashi Yamamoto , Masato Matsubara , Junichi Nishimae , Koji Yasui , Akihiro Otani
发明人： Yushi Takenaka , Masaki Kuzumoto , Kenji Yoshizawa , Takashi Yamamoto , Masato Matsubara , Junichi Nishimae , Koji Yasui , Akihiro Otani
IPC分类号： B23K26/06 , H01S3/036 , H01S3/06 , H01S3/07 , H01S3/08 , H01S3/0975 , H01S3/098 , H01S3/13 , H01S3/23 , H01S3/139
CPC分类号： B23K26/0608 , B23K26/06 , B23K26/064 , B23K26/0643 , B23K26/0648 , B23K26/0665 , B23K26/123 , H01S3/08059 , H01S3/036 , H01S3/076 , H01S3/08068 , H01S3/0975 , H01S3/2366
摘要： A laser system wherein, in order that a high-output and high-quality single mode of a cross sectional area larger than the beam diameter determined by the construction of a resonator can be obtained stably, although this has heretofore been impossible, there is used a coupling mirror provided with a partial reflection film and an antireflecting film, a laser beam mode is selected using the partial reflection film, a phase difference between laser beam portions caused by a difference in construction between the partial reflection film and the antireflecting film is compensated using a phase difference compensating apparatus, and there is formed an aperture whose diameter is set to a value of not larger than four times the diameter of the partial reflection film.
摘要翻译：一种激光系统，其中为了稳定地获得横截面积大于通过谐振器结构确定的光束直径的高输出和高质量的单一模式，尽管迄今为止已经不可能使用设置有部分反射膜和抗反射膜的耦合镜，使用部分反射膜选择激光束模式，补偿由部分反射膜和抗反射膜之间的结构差引起的激光束部分之间的相位差使用相位差补偿装置，形成直径设定为不大于部分反射膜直径的4倍的孔径。

40. 发明授权

US5392309A Laser apparatus includes an unstable resonator and a shading means 失效
标题翻译：激光装置包括不稳定谐振器和遮蔽装置
公开(公告)号：US5392309A
公开(公告)日：1995-02-21
申请号：US120754
申请日：1993-09-15
申请人： Junichi Nishimae , Kenji Yoshizawa , Kenji Kumamoto
发明人： Junichi Nishimae , Kenji Yoshizawa , Kenji Kumamoto
IPC分类号： H01S3/08
CPC分类号： H01S3/08081
摘要： A laser apparatus includes an unstable resonator having a total reflection mirror and a take-out mirror, and further includes shading means for shading a disturbed phase portion of a laser beam so as to derive exclusively a light having a uniform phase by shading the disturbed phase portion of the beam emitted from the resonator or the beam in the resonator.
摘要翻译：激光装置包括具有全反射镜和取出镜的不稳定谐振器，并且还包括用于遮蔽激光束的干涉相位部分的遮蔽装置，以便仅通过遮蔽干扰相位而导出具有均匀相位的光从谐振器或谐振器中的光束发射的光束的部分。

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