公开(公告)号：US07372877B2

公开(公告)日：2008-05-13

申请号：US10518234

申请日：2003-06-20

申请人： Akira Shirakawa ,  Kenichi Ueda ,  Hirofumi Kan ,  Hirofumi Miyajima

发明人： Akira Shirakawa ,  Kenichi Ueda ,  Hirofumi Kan ,  Hirofumi Miyajima

IPC分类号： H01S3/30

CPC分类号： H01S3/2383 ,  H01S3/067 ,  H01S3/06708

摘要： Fiber laser unit 1 comprises a plurality of fiber lasers 2 and 3 that generate laser beams by exciting a laser active substance inside cores 2a and 3a by exciting light, propagate the laser beams inside the cores 2a and 3a, and output the laser beams from the end portions 2c and 3c, wherein the respective fiber lasers 2 and 3 have resonators 4 and 5 that reflect the laser beams on both ends 2b, 2c, 3b, and 3c thereof and have a structure in which a part of the cores 2a and 3a is reduced in diameter, the diameter reduced portions of the cores 2a and 3a are made proximal to each other, injection synchronization is carried out inside the resonators 4 and 5 by laser beams leaked from the cores 2a and 3a, and a loss is applied to the port of either one of the fiber lasers 2 and 3. According to this fiber laser unit 1, by a simple structure in which the cores 2a and 3a are made proximal to each other and injection synchronization is carried out by using laser beams leaked from the cores 2a and 3a, coherent addition of lasers with extremely high addition efficiency is realized.

摘要翻译： 光纤激光单元1包括多个光纤激光器2和3，其通过激发光激发芯2A和3a内的激光活性物质来产生激光束，并将激光束传播到芯2a和3a内，并输出 来自端部2c和3c的激光束，其中各个光纤激光器2和3具有在两端2b，2c，3b和3c的反射激光束的谐振器4和5，并且具有结构 其中芯部2a和3a的一部分直径减小，芯部2a和3a的直径减小的部分彼此靠近，通过激光束在谐振器4和5内部进行注射同步 从芯部2a和3a泄漏，并且损耗被施加到光纤激光器2和3中的任一个的端口。 根据该光纤激光器单元1，通过使芯2a和3a彼此靠近并且通过使用从芯2a和3a泄漏的激光束进行注射同步的简单结构，将相干添加 实现了极高的附加效率的激光器。

公开(公告)号：US20050238065A1

公开(公告)日：2005-10-27

申请号：US10518234

申请日：2003-06-20

申请人： Akira Shirakawa ,  Kenichi Ueda ,  Hirofumi Kan ,  Hirofumi Miyajima

发明人： Akira Shirakawa ,  Kenichi Ueda ,  Hirofumi Kan ,  Hirofumi Miyajima

IPC分类号： G02B6/287 ,  H01S3/06 ,  H01S3/067 ,  H01S3/07 ,  H01S3/082 ,  H01S3/23 ,  H01S3/30

CPC分类号： H01S3/2383 ,  H01S3/067 ,  H01S3/06708

摘要： Fiber laser unit 1 comprises a plurality of fiber lasers 2 and 3 that generate laser beams by exciting a laser active substance inside cores 2a and 3a by exciting light, propagate the laser beams inside the cores 2a and 3a, and output the laser beams from the end portions 2c and 3c, wherein the respective fiber lasers 2 and 3 have resonators 4 and 5 that reflect the laser beams on both ends 2b, 2c, 3b, and 3c thereof and have a structure in which a part of the cores 2a and 3a is reduced in diameter, the diameter reduced portions of the cores 2a and 3a are made proximal to each other, injection synchronization is carried out inside the resonators 4 and 5 by laser beams leaked from the cores 2a and 3a, and a loss is applied to the port of either one of the fiber lasers 2 and 3. According to this fiber laser unit 1, by a simple structure in which the cores 2a and 3a are made proximal to each other and injection synchronization is carried out by using laser beams leaked from the cores 2a and 3a, coherent addition of lasers with extremely high addition efficiency is realized.

摘要翻译： 光纤激光单元1包括多个光纤激光器2和3，其通过激发光激发芯2A和3a内的激光活性物质来产生激光束，并将激光束传播到芯2a和3a内，并输出 来自端部2c和3c的激光束，其中各个光纤激光器2和3具有在两端2b，2c，3b和3c的反射激光束的谐振器4和5，并且具有结构 其中芯部2a和3a的一部分直径减小，芯部2a和3a的直径减小的部分彼此靠近，通过激光束在谐振器4和5内部进行注射同步 从芯部2a和3a泄漏，并且损耗被施加到光纤激光器2和3中的任一个的端口。 根据该光纤激光器单元1，通过使芯2a和3a彼此靠近并且通过使用从芯2a和3a泄漏的激光束进行注射同步的简单结构，将相干添加 实现了极高的附加效率的激光器。

公开(公告)号：US07944956B2

公开(公告)日：2011-05-17

申请号：US11917971

申请日：2006-04-27

申请人： Hirofumi Miyajima ,  Hirofumi Kan ,  Nobuo Watanabe ,  Satoru Ooishi ,  Nobutaka Suzuki

发明人： Hirofumi Miyajima ,  Hirofumi Kan ,  Nobuo Watanabe ,  Satoru Ooishi ,  Nobutaka Suzuki

IPC分类号： H01S3/04

CPC分类号： H01L23/473 ,  H01L2924/0002 ,  H01S5/02264 ,  H01S5/02423 ,  H01S5/4018 ,  H01S5/4025 ,  H01L2924/00

摘要： A heat sink has a first flat plate, a partition plate, and a second flat plate. The first flat plate has an upper surface in which a first recess is formed. The second flat plate has a lower surface in which a second recess is formed, and an upper surface on which a semiconductor laser element is mounted. These recesses form a part of a refrigerant channel. The partition plate has a lower surface covering the first recess, an upper surface covering the second recess, and at least one through hole having the first recess communicated with the second recess. The first flat plate and the second flat plate both have a first coefficient of thermal expansion. The partition plate has a second coefficient of thermal expansion lower than the first coefficient of thermal expansion.

摘要翻译： 散热器具有第一平板，隔板和第二平板。 第一平板具有形成有第一凹部的上表面。 第二平板具有形成有第二凹部的下表面和安装有半导体激光元件的上表面。 这些凹部形成制冷剂通道的一部分。 隔板具有覆盖第一凹部的下表面，覆盖第二凹部的上表面，以及具有与第二凹部连通的第一凹部的至少一个通孔。 第一平板和第二平板都具有第一热膨胀系数。 分隔板具有比第一热膨胀系数低的第二热膨胀系数。

公开(公告)号：US07522643B2

公开(公告)日：2009-04-21

申请号：US11628413

申请日：2005-07-06

申请人： Hirofumi Miyajima ,  Hirofumi Kan

发明人： Hirofumi Miyajima ,  Hirofumi Kan

IPC分类号： H01S3/04

CPC分类号： H01S5/02423 ,  H01L24/83 ,  H01L2224/83801 ,  H01L2924/01068 ,  H01L2924/01079 ,  H01S5/02236 ,  H01S5/02272 ,  H01S5/405

摘要： The present invention relates to a semiconductor laser apparatus having a metal body which efficiently cools a semiconductor laser element, in which joining of copper-made members coated with DLC layers and prevention of corrosion in the vicinity of joined portions are possible. The semiconductor laser apparatus has a metal body as a heat sink for cooling the semiconductor laser element. The metal body is constituted by a plurality of copper-made members, and the surfaces of each copper-made members are continuously coated with a diamond carbon layer except for regions corresponding to an exposed region in which the semiconductor laser element is mounted.

摘要翻译： 本发明涉及一种半导体激光装置，其具有有效地冷却半导体激光元件的金属体，其中涂覆有DLC层的铜制部件的接合和防止接合部附近的腐蚀是可能的。 半导体激光装置具有用于冷却半导体激光元件的散热器的金属体。 金属体由多个铜制构件构成，除了与安装半导体激光元件的露出区域对应的区域之外，每个铜制构件的表面连续地涂覆有金刚石碳层。

公开(公告)号：US20080279239A1

公开(公告)日：2008-11-13

申请号：US10577958

申请日：2004-12-16

申请人： Hirofumi Kan ,  Hirofumi Miyajima ,  Nobuo Watanabe

发明人： Hirofumi Kan ,  Hirofumi Miyajima ,  Nobuo Watanabe

IPC分类号： H01S3/04

CPC分类号： H01S5/02423 ,  H01L23/473 ,  H01L2924/0002 ,  H01S5/02476 ,  H01S5/4025 ,  H01S5/405 ,  H01L2924/00

摘要： A semiconductor laser device 1 comprises: a heat sink 20, in turn comprising a main cooler unit 21, formed by joining metal members, a fluid channel 30, formed inside the main cooler unit 21, a cooling region 23 on an outer wall surface 22, and a resin layer 40, being continuously coated onto the outer wall surface 22 and an inner wall surface 33 with the exception of the cooling region 23; and a semiconductor laser element 80, positioned at the cooling region 23 with thermal contact with the outer wall surface 22 being maintained. By continuously coating the outer wall surface 22 and the inner wall surface 33 with the resin layer 40 with the exception of the cooling region 23, prevention of corrosion near portions at which the outer wall surface and the inner wall surface contact each other is realized.

摘要翻译： 半导体激光装置1包括：散热器20，其又包括通过连接金属构件形成的主冷却器单元21，形成在主冷却器单元21内部的流体通道30，外壁表面22上的冷却区域23 ，除了冷却区域23以外，连续地涂布在外壁面22和内壁面33上的树脂层40。 并且与保持与外壁面22热接触的位于冷却区域23的半导体激光元件80。 通过除了冷却区域23之外，通过用树脂层40连续地涂覆外壁面22和内壁面33，可以防止在外壁面和内壁面彼此接触的部分附近的腐蚀。

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。

公开(公告)号：US07733570B2

公开(公告)日：2010-06-08

申请号：US10525670

申请日：2003-08-28

申请人： Yujin Zheng ,  Hirofumi Miyajima ,  Hirofumi Kan

发明人： Yujin Zheng ,  Hirofumi Miyajima ,  Hirofumi Kan

IPC分类号： G02B27/14 ,  G02B27/30

CPC分类号： G02B27/0966 ,  G02B19/0014 ,  G02B19/0057 ,  G02B27/09 ,  G02B27/0905 ,  G02B27/1006 ,  G02B27/143 ,  G02B27/145

摘要： An optical condenser device has light sources (10, 20) and an optical combiner (30). Each light source (10, 20) includes a semiconductor laser array stack (12, 22), collimator lenses (16, 26), and beam converters (18, 28). Since the optical combiner (30) combines the beams from one (12) of the stacks and the beams from the other (22), a laser beam with high optical density is generated. The optical combiner (30) has transmitting portions (32) and reflecting portions (34), each of which preferably has a strip-like shape elongated in the layering directions of the stacks (12, 22). In this case, the beams emitted from the active layers (14, 24) will be received and combined appropriately by the optical combiner (30) even if positional deviation of the active layers (14, 24) occurs.

摘要翻译： 光学聚光装置具有光源（10,20）和光学组合器（30）。 每个光源（10,20）包括半导体激光器阵列叠层（12,22），准直透镜（16,26）和光束转换器（18,28）。 由于光学组合器（30）组合来自一个（12）堆叠的光束和来自另一个（22）的光束，因此产生具有高光密度的激光束。 光学组合器（30）具有透光部分（32）和反射部分（34），每个反射部分（34）优选地具有在叠层（12,22）的层叠方向上细长的条状形状。 在这种情况下，即使发生有源层（14,24）的位置偏移，从有源层（14,24）发射的光束将被光组合器（30）适当地接收和组合。

公开(公告)号：US20070297473A1

公开(公告)日：2007-12-27

申请号：US11628413

申请日：2005-07-06

申请人： Hirofumi Miyajima ,  Hirofumi Kan

发明人： Hirofumi Miyajima ,  Hirofumi Kan

IPC分类号： H01S3/16

CPC分类号： H01S5/02423 ,  H01L24/83 ,  H01L2224/83801 ,  H01L2924/01068 ,  H01L2924/01079 ,  H01S5/02236 ,  H01S5/02272 ,  H01S5/405

摘要： The present invention relates to a semiconductor laser apparatus having a metal body which efficiently cools a semiconductor laser element, in which joining of copper-made members coated with DLC layers and prevention of corrosion in the vicinity of joined portions are possible. The semiconductor laser apparatus has a metal body as a heat sink for cooling the semiconductor laser element. The metal body is constituted by a plurality of copper-made members, and the surfaces of each copper-made members are continuously coated with a diamond carbon layer except for regions corresponding to an exposed region in which the semiconductor laser element is mounted.

摘要翻译： 本发明涉及一种半导体激光装置，其具有有效地冷却半导体激光元件的金属体，其中涂覆有DLC层的铜制部件的接合和防止接合部附近的腐蚀是可能的。 半导体激光装置具有用于冷却半导体激光元件的散热器的金属体。 金属体由多个铜制构件构成，除了与安装半导体激光元件的露出区域对应的区域之外，每个铜制构件的表面连续地涂覆有金刚石碳层。

公开(公告)号：US07764432B2

公开(公告)日：2010-07-27

申请号：US11922230

申请日：2006-04-27

申请人： Hirofumi Miyajima ,  Hirofumi Kan ,  Takayuki Uchiyama ,  Masaaki Matsuura ,  Toshimasa Matsuno

发明人： Hirofumi Miyajima ,  Hirofumi Kan ,  Takayuki Uchiyama ,  Masaaki Matsuura ,  Toshimasa Matsuno

IPC分类号： G02B27/14 ,  G02B27/10

CPC分类号： B23K26/0732 ,  B23K26/0604 ,  B23K26/0608 ,  B23K2101/18 ,  B23K2103/04 ,  G02B19/0014 ,  G02B19/0057 ,  G02B27/0927 ,  H01S5/005 ,  H01S5/02252 ,  H01S5/4012 ,  H01S5/405

摘要： A laser apparatus (10) has a plurality of light sources (11a to 11c) that include laser array stacks (12a to 12c). Laser beams (32b, 32c) are respectively deflected by a slit mirror (14) and a polarizing beam splitter (16) and synthesized with other laser beams (32a). These laser beams have optical axes that are inclined with respect to each other and slow axis directions that are mutually parallel. A converging optical system (20) converges the laser beams from the respective light sources at positions that are separated along a direction perpendicular to the slow axis directions.

摘要翻译： 激光装置（10）具有包括激光阵列（12a〜12c）的多个光源（11a〜11c）。 激光束（32b，32c）分别由狭缝镜（14）和偏振分束器（16）偏转并与其它激光束（32a）合成。 这些激光束具有彼此相对倾斜的光轴和相互平行的慢轴方向。 会聚光学系统（20）将来自各个光源的激光束沿垂直于慢轴方向的方向分离的位置会聚。

公开(公告)号：US07567598B2

公开(公告)日：2009-07-28

申请号：US10593033

申请日：2005-03-08

申请人： Hirofumi Miyajima ,  Hirofumi Kan

发明人： Hirofumi Miyajima ,  Hirofumi Kan

IPC分类号： H01S3/04

CPC分类号： H01S5/405 ,  H01L23/473 ,  H01L2924/0002 ,  H01S5/024 ,  H01S5/02407 ,  H01L2924/00

摘要： This invention relates to a semiconductor laser apparatus having a structure to prevent corrosion in a refrigerant flow path of a heat sink and cool stably a semiconductor laser array over a long period. The semiconductor laser apparatus has a semiconductor laser stack, a refrigerant supplier, an insulating piping, and a refrigerant. The refrigerant supplier supplies the refrigerant to the semiconductor laser stack. The refrigerant is comprised of fluorocarbon. The insulating piping is an insulating piping with flexibility. An grounded conductive material is arranged inside the insulating piping. The conductive material operates to remove static electricity generated where the refrigerant flows inside the insulating piping.

摘要翻译： 本发明涉及一种具有防止散热器制冷剂流路中的腐蚀并长时间稳定地冷却半导体激光器阵列的结构的半导体激光装置。 半导体激光装置具有半导体激光器堆叠，制冷剂供给器，绝缘管道和制冷剂。 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。 绝缘管是具有柔性的绝缘管。 绝缘管道内布置有接地导电材料。 导电材料用于除去制冷剂在绝热管道内流动的静电。