公开(公告)号：US06931047B2

公开(公告)日：2005-08-16

申请号：US10327614

申请日：2002-12-24

申请人： Hirofumi Kan ,  Akihiro Sone ,  Hiroshi Sakai ,  Takunori Taira ,  Nicolaie Pavel ,  Voicu Lupei

发明人： Hirofumi Kan ,  Akihiro Sone ,  Hiroshi Sakai ,  Takunori Taira ,  Nicolaie Pavel ,  Voicu Lupei

IPC分类号： H01S3/113 ,  H01S3/0941 ,  H01S3/102 ,  H01S3/11 ,  H01S3/00

CPC分类号： H01S3/113 ,  H01S3/0612 ,  H01S3/0627 ,  H01S3/09415 ,  H01S3/1022 ,  H01S3/1024

摘要： In the first period from pumping start time T1 to time T2 in a laser light source 1, the power of pumping light L1 outputted from a pumping light source 41 so as to irradiate a laser medium 21 is at value P1 whereas the power of light L2 incident on a saturable absorber 30 after being emitted from the laser medium 21 is at an absorption saturation threshold or lower, which causes a resonator 10 to lower its Q-value, thereby suppressing the laser oscillation. Immediately before time T2, the power of light L2 is slightly lower than the absorption saturation threshold. In the second period subsequent to the first period, the power of light L2 is at value P2 greater than the above-mentioned value P1, whereas the power of light L2 exceeds the absorption saturation threshold, which causes the resonator 10 to increase its Q-value, whereby a mirror 12 outputs pulse laser light L3 to the outside.

摘要翻译： 在激光光源1中的从泵浦开始时间T 1到时刻T 2的第一期间，从泵浦光源41输出的照射激光介质21的泵浦光L 1的功率为值P 1， 从激光介质21发射后入射到可饱和吸收体30上的光L 2的功率处于吸收饱和阈值以下，使谐振器10降低其Q值，抑制激光振荡。 在时间T 2之前，光L 2的功率略低于吸收饱和阈值。 在第一时段之后的第二个周期中，光L 2的功率大于上述值P 1的值P 2，而光L 2的功率超过吸收饱和阈值，这导致谐振器10 增加其Q值，由此反射镜12将脉冲激光L 3输出到外部。

公开(公告)号：US06950449B2

公开(公告)日：2005-09-27

申请号：US10237090

申请日：2002-09-09

申请人： Hiroshi Sakai ,  Akihiro Sone ,  Hirofumi Kan ,  Takunori Taira

发明人： Hiroshi Sakai ,  Akihiro Sone ,  Hirofumi Kan ,  Takunori Taira

IPC分类号： H01S3/113 ,  H01S3/11

CPC分类号： H01S3/113 ,  H01S3/005 ,  H01S3/09415 ,  H01S3/1022

摘要： The present passively Q-switched laser comprises a condensing optical system for condensing a laser beam emitted from a laser light source onto the surface of the solid-state laser medium. The surface of a solid-state laser medium is disposed off the condensation position of the laser beam produced by the condensing optical system.

摘要翻译： 本被动Q开关激光器包括用于将从激光光源发射的激光束聚光到固态激光介质的表面上的聚光光学系统。 固态激光介质的表面设置在由聚光光学系统产生的激光束的冷凝位置之外。

公开(公告)号：US20050036531A1

公开(公告)日：2005-02-17

申请号：US10892475

申请日：2004-07-16

申请人： Hirofumi Kan ,  Akihiro Sone ,  Takunori Taira ,  Yasunori Furukawa

发明人： Hirofumi Kan ,  Akihiro Sone ,  Takunori Taira ,  Yasunori Furukawa

IPC分类号： H01S3/16 ,  H01S3/042 ,  H01S3/06 ,  H01S3/091 ,  H01S3/094 ,  H01S3/0941 ,  H01S3/10 ,  H01S3/113

CPC分类号： H01S3/0941 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/094038 ,  H01S3/1611 ,  H01S3/1671

摘要： A laser device 1 is provided with: a solid sate laser medium made of GdVO4 or YVO4 to which Nd3+ is added, having first and second surfaces 10A, 10B facing each other; a high reflection film 12 formed on the first surface of the laser medium for reflecting light having a wavelength in a first wavelength range 880±5 nm and in a second wavelength range from 910 nm to 916 nm; a reflecting means 20 placed in a manner where an optical resonator of which the resonance Q-value for light having a wavelength in the second wavelength range is greater than the resonance Q-value for light of every wavelength in a third wavelength range from 1060 nm to 1065 nm is formed together with the high reflection film and the laser medium is positioned within the resonator; and an excitation light source 22 that outputs light having a wavelength in the first wavelength range for exciting the laser medium. Laser device 1 is formed so that light from the excitation light source is guided into the resonator in a direction different from the optical axis direction of the resonator, and enters into the laser medium. As a result, a solid state laser device having a high light-emission efficiency can be implemented.

摘要翻译： 激光装置1设置有：添加有Nd + 3+的GdVO 4或YVO 4制成的固体激光介质，具有彼此面对的第一和第二表面10A，10B; 形成在激光介质的第一表面上的高反射膜12，用于反射具有880±5nm的第一波长范围和910nm至916nm的第二波长范围的波长的光; 一个反射装置20，以这样的方式放置：其中具有第二波长范围的波长的光的谐振Q值大于来自1060nm的第三波长范围内的每个波长的光的谐振Q值的光学谐振器 与高反射膜一起形成1065nm，激光介质位于谐振器内; 以及激励光源22，其输出具有用于激发激光介质的第一波长范围的波长的光。 激光装置1形成为使得来自激发光源的光沿着与谐振器的光轴方向不同的方向被引导到谐振器中，并进入激光介质。 结果，可以实现具有高发光效率的固态激光器件。

公开(公告)号：US07664148B2

公开(公告)日：2010-02-16

申请号：US11661327

申请日：2005-09-06

申请人： Hiroshi Sakai ,  Hirofumi Kan ,  Takunori Taira

发明人： Hiroshi Sakai ,  Hirofumi Kan ,  Takunori Taira

IPC分类号： H01S3/11 ,  H01S3/113

CPC分类号： H01S3/113 ,  H01S3/0014 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08036 ,  H01S3/10061

摘要： A laser apparatus 10 includes: a laser medium 11 arranged between a pair of reflecting means 12A and 12B of an optical resonator 12 and adapted to be excited to emit light; a saturable absorber 14 arranged on the optical axis L of the optical resonator 12 between the pair of reflecting means, the transmissivity thereof being adapted to increase with the absorption of emitted light 21 from the laser medium; and an excitation light source unit 13 adapted to output light 22 having a wavelength that excites the laser medium. The saturable absorber 14 is a crystalline body having first to third mutually perpendicular crystallographic axes and is arranged in the optical resonator 12 in such a manner as to have different transmissivities for emitted light in two mutually perpendicular polarization directions. In this case, a laser oscillation occurs for emitted light in the polarization direction that shows the greater transmissivity, and it is therefore possible to obtain laser beams having a stabilized polarization direction.

摘要翻译： 激光装置10包括：激光介质11，配置在光谐振器12的一对反射装置12A和12B之间，并被激发以发光; 在所述一对反射装置之间布置在所述光学谐振器12的光轴L上的可饱和吸收体14，其透射率适于随着来自激光介质的发射光21的吸收而增加; 以及适于输出具有激发激光介质的波长的光22的激发光源单元13。 可饱和吸收体14是具有第一至第三相互垂直的结晶轴的结晶体，并且以对于两个相互垂直的偏振方向的发射光具有不同透射率的方式设置在光学谐振器12中。 在这种情况下，对于显示较大透射率的偏振方向的发光，发生激光振荡，因此可以获得具有稳定的偏振方向的激光束。

公开(公告)号：US20090016385A1

公开(公告)日：2009-01-15

申请号：US11661327

申请日：2005-09-06

申请人： Hiroshi Sakai ,  Hirofumi Kan ,  Takunori Taira

发明人： Hiroshi Sakai ,  Hirofumi Kan ,  Takunori Taira

IPC分类号： H01S3/113

CPC分类号： H01S3/113 ,  H01S3/0014 ,  H01S3/0621 ,  H01S3/0627 ,  H01S3/08036 ,  H01S3/10061

摘要： A laser apparatus 10 includes: a laser medium 11 arranged between a pair of reflecting means 12A and 12B of an optical resonator 12 and adapted to be excited to emit light; a saturable absorber 14 arranged on the optical axis L of the optical resonator 12 between the pair of reflecting means, the transmissivity thereof being adapted to increase with the absorption of emitted light 21 from the laser medium; and an excitation light source unit 13 adapted to output light 22 having a wavelength that excites the laser medium. The saturable absorber 14 is a crystalline body having first to third mutually perpendicular crystallographic axes and is arranged in the optical resonator 12 in such a manner as to have different transmissivities for emitted light in two mutually perpendicular polarization directions. In this case, a laser oscillation occurs for emitted light in the polarization direction that shows the greater transmissivity, and it is therefore possible to obtain laser beams having a stabilized polarization direction.

摘要翻译： 激光装置10包括：激光介质11，配置在光谐振器12的一对反射装置12A和12B之间，并被激发以发光; 在所述一对反射装置之间布置在所述光学谐振器12的光轴L上的可饱和吸收体14，其透射率适于随着来自激光介质的发射光21的吸收而增加; 以及适于输出具有激发激光介质的波长的光22的激发光源单元13。 可饱和吸收体14是具有第一至第三相互垂直的结晶轴的结晶体，并且以对于两个相互垂直的偏振方向的发射光具有不同透射率的方式设置在光学谐振器12中。 在这种情况下，对于显示较大透射率的偏振方向的发光，发生激光振荡，因此可以获得具有稳定的偏振方向的激光束。

公开(公告)号：US20140226772A1

公开(公告)日：2014-08-14

申请号：US14348137

申请日：2012-08-08

申请人： Takeshi Watari ,  Katsunobu Nishihara ,  Masaru Takagi ,  Nakahiro Satoh ,  Toshiyuki Kawashima ,  Hirofumi Kan

发明人： Takeshi Watari ,  Katsunobu Nishihara ,  Masaru Takagi ,  Nakahiro Satoh ,  Toshiyuki Kawashima ,  Hirofumi Kan

IPC分类号： G21B3/00

CPC分类号： G21B3/006 ,  H05G2/005 ,  H05G2/006 ,  H05H3/06

摘要： A radiation generating apparatus comprises a fuel storage unit 20 for storing a mixed liquid 61, a pressure application unit 10 for applying a pressure to the mixed liquid 61, a jet formation unit 30 for forming a jet 61a of the mixed liquid 61, a reaction unit 44 for forming the jet 61a of the mixed liquid 61 therein, a pressure adjustment unit 41 for setting a pressure in the reaction unit 44 lower than an internal pressure of the jet formation unit 30, and a light source unit 45 for irradiating a particle group 63a with laser light L1.

摘要翻译： 辐射发生装置包括用于储存混合液体61的燃料存储单元20，用于向混合液体61施加压力的压力施加单元10，用于形成混合液体61的喷射61a的射流形成单元30， 用于在其中形成混合液体61的喷射61a的单元44，用于将反应单元44中的压力设定为低于喷射形成单元30的内压的压力调节单元41，以及用于照射粒子的光源单元45 63a组激光L1。

公开(公告)号：US20120014402A1

公开(公告)日：2012-01-19

申请号：US13256657

申请日：2010-05-21

申请人： Takahide Ochiai ,  Naota Akikusa ,  Tadataka Edamura ,  Hirofumi Kan

发明人： Takahide Ochiai ,  Naota Akikusa ,  Tadataka Edamura ,  Hirofumi Kan

IPC分类号： H01S3/14

CPC分类号： H01S5/3402 ,  B82Y20/00 ,  H01S3/094057 ,  H01S5/005 ,  H01S5/02248 ,  H01S5/02415 ,  H01S5/0683

摘要： A laser module LM is provided with a quantum cascade laser 1, a tubular member 5, and an infrared detector 7. The tubular member 5 has a pair of opening ends 5a, 5b and is arranged so that one opening end 5a is opposed to a face 1b opposed to an emitting end face 1a of the quantum cascade laser 1. The infrared detector 7 is arranged so as to be opposed to the other opening end 5b of the tubular member 5. Light emitted from the face (rear end face) 1b opposed to the emitting end face (front end face) 1a of the quantum cascade laser 1 is guided inside the tubular member 5 to enter the infrared detector 7, and then is detected.

摘要翻译： 激光模块LM设置有量子级联激光器1，管状部件5和红外线检测器7.管状部件5具有一对开口端部5a，5b，并且布置成使得一个开口端部5a与 面1b与量子级联激光器1的发射端面1a相对。红外线检测器7被布置成与管状部件5的另一个开口端5b相对。从面（后端面）1b发射的光 与量子级联激光器1的发射端面（前端面）1a相对的方向被引导到管状部件5内，进入红外线检测器7，然后被检测。

公开(公告)号：US20110275003A1

公开(公告)日：2011-11-10

申请号：US13185971

申请日：2011-07-19

申请人： Mitsuru Udatsu ,  Hirofumi Kan ,  Asako Satoh ,  Mitsuru Furuichi ,  Jun Momma

发明人： Mitsuru Udatsu ,  Hirofumi Kan ,  Asako Satoh ,  Mitsuru Furuichi ,  Jun Momma

IPC分类号： H01M8/10

CPC分类号： H01M4/8673 ,  H01M4/8605 ,  H01M8/1011 ,  Y02E60/523

摘要： A fuel cell includes: an anode catalyst layer containing an anode catalyst and a proton-conductive electrolyte; a cathode catalyst layer containing a cathode catalyst and a proton-conductive electrolyte; a proton-conductive electrolyte membrane interposed between the anode catalyst layer and the cathode catalyst layer; and a mechanism supplying a fuel to the anode catalyst layer, wherein a porosity of the anode catalyst layer as measured by a mercury intrusion porosimeter is 0 to 30%.

摘要翻译： 燃料电池包括：含有阳极催化剂和质子传导电解质的阳极催化剂层; 含有阴极催化剂和质子传导电解质的阴极催化剂层; 介于阳极催化剂层和阴极催化剂层之间的质子传导电解质膜; 以及向阳极催化剂层供给燃料的机构，其中，通过水银侵入孔隙率计测定的阳极催化剂层的孔隙率为0〜30％。

公开(公告)号：US20110176574A1

公开(公告)日：2011-07-21

申请号：US13055995

申请日：2009-06-10

申请人： Tadashi Ikegawa ,  Toshiyuki Kawashima ,  Hirofumi Kan

发明人： Tadashi Ikegawa ,  Toshiyuki Kawashima ,  Hirofumi Kan

IPC分类号： H01S3/08

CPC分类号： H01S3/0606 ,  H01S3/025 ,  H01S3/027 ,  H01S3/0405 ,  H01S3/0407 ,  H01S3/042 ,  H01S3/0612 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/094053 ,  H01S3/09415 ,  H01S3/115 ,  H01S3/1618 ,  H01S3/1643 ,  H01S3/1685

摘要： A solid-state laser apparatus 1 bounces laser light L2 between an end mirror 3 and an output mirror 4 via a slab-type solid-state laser medium 2 excited by excitation light L1 to thereby amplify and output the laser light L2. The solid-state laser medium 2 includes incident/exit end faces 2a, 2b on and from which the laser light L2 is made incident and exits, and reflecting end faces 2c, 2d which reflect the laser light L2 so that the incident laser light L2 propagates in a zigzag manner. The incident/exit end face 2a is made incident with the excitation light L1 so that the excitation light L1 propagates along substantially the same propagation path as that of the laser light L2 within the solid-state laser medium 2. Accordingly, a solid-state laser apparatus which can improve the coupling efficiency between the excitation light and the laser light is realized.

摘要翻译： 固体激光装置1经由激发光L1激发的板状固体激光介质2在端镜3和输出反射镜4之间反射激光L2，从而放大并输出激光L2。 固态激光介质2包括激光L2入射并离开的入射/出射端面2a，2b，反射激光L2的反射端面2c，2d，使入射激光L2 以锯齿形的方式传播。 入射/出射端面2a与激发光L1入射，使得激发光L1沿与固体激光介质2内的激光L2的传播路径基本相同的传播路径传播。因此，固态 实现了可以提高激发光和激光之间的耦合效率的激光装置。

公开(公告)号：US07885299B2

公开(公告)日：2011-02-08

申请号：US12335208

申请日：2008-12-15

申请人： Hirofumi Miyajima ,  Hirofumi Kan ,  Masanobu Yamanaka

发明人： Hirofumi Miyajima ,  Hirofumi Kan ,  Masanobu Yamanaka

IPC分类号： H01S3/04

CPC分类号： H01S5/405 ,  H01L23/473 ,  H01L2924/0002 ,  H01L2924/3011 ,  H01S5/02264 ,  H01S5/02423 ,  H01S5/4025 ,  H01L2924/00

摘要： The present invention relates to a semiconductor laser apparatus having a structure for preventing the corrosion of a refrigerant flow path in a heat sink and for cooling a semiconductor laser array stably over a long period of time. The semiconductor laser apparatus comprises a semiconductor laser stack in which a plurality of semiconductor laser units are stacked, a refrigerant supplier, a piping for connecting these components, and a refrigerant flowing through these components. The refrigerant supplier supplies the refrigerant to the semiconductor laser stack. The refrigerant is comprised of fluorocarbon. Each of the semiconductor laser units is constituted by a pair of a semiconductor laser array and a heat sink. The heat sink has a refrigerant flow path.

摘要翻译： 本发明涉及一种半导体激光装置，其具有防止散热器中的制冷剂流路的腐蚀并且长时间稳定地冷却半导体激光器阵列的结构。 半导体激光装置包括堆叠多个半导体激光器单元的半导体激光器堆叠，制冷剂供应器，用于连接这些部件的管道和流经这些部件的制冷剂。 制冷剂供应器将制冷剂供应到半导体激光器堆叠。 制冷剂由碳氟化合物构成。 每个半导体激光器单元由一对半导体激光器阵列和散热器构成。 散热器具有制冷剂流动路径。