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    • 2. 发明授权
    • Semiconductor laser equipment
    • 半导体激光设备
    • US07567598B2
    • 2009-07-28
    • US10593033
    • 2005-03-08
    • Hirofumi MiyajimaHirofumi Kan
    • Hirofumi MiyajimaHirofumi Kan
    • H01S3/04
    • H01S5/405H01L23/473H01L2924/0002H01S5/024H01S5/02407H01L2924/00
    • 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.
    • 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。
    • 3. 发明申请
    • Semiconductor laser device and semiconductor laser device array
    • 半导体激光器件和半导体激光器件阵列
    • US20090022194A1
    • 2009-01-22
    • US11659198
    • 2005-08-04
    • Akiyoshi WatanabeHirofumi MiyajimaHirofumi Kan
    • Akiyoshi WatanabeHirofumi MiyajimaHirofumi Kan
    • H01S5/20
    • H01S5/4031H01S5/101H01S5/1014H01S5/1085H01S5/16H01S5/2231H01S2301/18
    • In an active layer 15 of a semiconductor laser device 3, a refractive index type main waveguide 4 is formed by a ridge portion 9a of a p-type clad layer 17. Side surfaces 4g and 4h of the main waveguide 4 form a relative angle θ, based on a total reflection critical angle θc at the side surfaces 4g and 4h, with respect to a light emitting surface 1a and a light reflecting surface 1b. The main waveguide 4 is separated by predetermined distances from the light emitting surface 1a and the light reflecting surface 1b, and optical path portions 8a and 8b, for making a laser light L1 pass through, are disposed between one end of the main waveguide 4 and the light emitting surface 1a and between the other end of the main waveguide 4 and the light reflecting surface 1b. The optical path portions 8a and 8b are gain type waveguides and emit light components L2 and L3, which, among the light passing through the optical path portions 8a and 8b, deviate from a direction of a predetermined axis A, to the exterior. A semiconductor laser device and a semiconductor laser device array that can emit laser light of comparatively high intensity and can reduce side peaks are thereby realized.
    • 在半导体激光器件3的有源层15中,折射率型主波导4由p型覆盖层17的脊部9a形成。主波导4的侧表面4g和4h形成相对角θ 基于相对于发光表面1a和光反射表面1b在侧表面4g和4h处的全反射临界角度。 主波导4与发光面1a和光反射面1b分离规定距离,激光L1通过的光路部8a,8b配置在主波导管4的一端和 发光表面1a和主波导4的另一端和光反射表面1b之间。 光路部分8a和8b是增益型波导,并且发射光通过光路部分8a和8b的光从预定轴线A的方向偏离的光分量L2和L3到外部。 从而可以实现能够发出较高强度的激光并能够减少侧峰的半导体激光器件和半导体激光器件阵列。
    • 9. 发明授权
    • Condenser
    • 冷凝器
    • US07733570B2
    • 2010-06-08
    • US10525670
    • 2003-08-28
    • Yujin ZhengHirofumi MiyajimaHirofumi Kan
    • Yujin ZhengHirofumi MiyajimaHirofumi Kan
    • G02B27/14G02B27/30
    • G02B27/0966G02B19/0014G02B19/0057G02B27/09G02B27/0905G02B27/1006G02B27/143G02B27/145
    • 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.
    • 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。
    • 10. 发明授权
    • Fiber laser unit
    • 光纤激光单元
    • US07372877B2
    • 2008-05-13
    • US10518234
    • 2003-06-20
    • Akira ShirakawaKenichi UedaHirofumi KanHirofumi Miyajima
    • Akira ShirakawaKenichi UedaHirofumi KanHirofumi Miyajima
    • H01S3/30
    • H01S3/2383H01S3/067H01S3/06708
    • 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.
    • 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。