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1. 发明授权

US09214784B2 Laser device 有权
标题翻译：激光设备
公开(公告)号：US09214784B2
公开(公告)日：2015-12-15
申请号：US14374696
申请日：2012-03-19
申请人： Kyosuke Kuramoto , Takayuki Yanagisawa , Yoshihito Hirano
发明人： Kyosuke Kuramoto , Takayuki Yanagisawa , Yoshihito Hirano
IPC分类号： H01S3/091 , H01S5/04 , G02F1/377 , H01S3/109 , H01S3/06 , H01S3/0941 , H01S3/16 , H01S3/04 , G02F1/35
CPC分类号： H01S5/041 , G02F1/377 , G02F2001/3509 , H01S3/0401 , H01S3/0405 , H01S3/0612 , H01S3/0615 , H01S3/0621 , H01S3/0625 , H01S3/0627 , H01S3/09415 , H01S3/109 , H01S3/1611 , H01S3/1673 , H01S2301/02
摘要： An end surface 3b of a solid-state laser element 3 is sloped in such a way that, assuming that laser light is incident upon air from the end surface, an angle of incidence which a normal to an inner side of the end surface forms with a traveling direction of the laser light substantially matches the Brewster angle at the incidence plane, an end surface 4a of a wavelength conversion element 4 is sloped in such a way that, assuming that the laser light is incident upon air from the end surface, an angle of incidence which a normal to an inner side of the end surface forms with a traveling direction of the laser light substantially matches the Brewster angle at the incidence plane, and the end surface 3b and the end surface 4b are arranged in such a way as to be opposite to each other.
摘要翻译：固体激光元件3的端面3b以这样的方式倾斜，即假设激光从端面入射到空气上，与端面的内侧垂直的入射角与激光的行进方向基本上与入射面处的布鲁斯特角度匹配，波长转换元件4的端面4a倾斜，假设激光从端面入射到空气上，与激光的行进方向形成的端面的内侧的法线的入射角基本上与入射面处的布鲁斯特角度匹配，端面3b和端面4b以如下方式配置：相互对立。

2. 发明申请

US20150016484A1 LASER DEVICE 有权
标题翻译：激光装置
公开(公告)号：US20150016484A1
公开(公告)日：2015-01-15
申请号：US14374696
申请日：2012-03-19
申请人： Kyosuke Kuramoto , Takayuki Yanagisawa , Yoshihito Hirano
发明人： Kyosuke Kuramoto , Takayuki Yanagisawa , Yoshihito Hirano
IPC分类号： H01S5/04
CPC分类号： H01S5/041 , G02F1/377 , G02F2001/3509 , H01S3/0401 , H01S3/0405 , H01S3/0612 , H01S3/0615 , H01S3/0621 , H01S3/0625 , H01S3/0627 , H01S3/09415 , H01S3/109 , H01S3/1611 , H01S3/1673 , H01S2301/02
摘要： An end surface 3b of a solid-state laser element 3 is sloped in such a way that, assuming that laser light is incident upon air from the end surface, an angle of incidence which a normal to an inner side of the end surface forms with a traveling direction of the laser light substantially matches the Brewster angle at the incidence plane, an end surface 4a of a wavelength conversion element 4 is sloped in such a way that, assuming that the laser light is incident upon air from the end surface, an angle of incidence which a normal to an inner side of the end surface forms with a traveling direction of the laser light substantially matches the Brewster angle at the incidence plane, and the end surface 3b and the end surface 4b are arranged in such a way as to be opposite to each other.
摘要翻译：固体激光元件3的端面3b以这样的方式倾斜，即假设激光从端面入射到空气上，与端面的内侧垂直的入射角与激光的行进方向基本上与入射面处的布鲁斯特角度匹配，波长转换元件4的端面4a倾斜，假设激光从端面入射到空气上，与激光的行进方向形成的端面的内侧的法线的入射角基本上与入射面处的布鲁斯特角度匹配，端面3b和端面4b以如下方式配置：相互对立。

3. 发明授权

US08743916B2 Plane waveguide type laser and display device 有权
标题翻译：平面波导型激光和显示装置
公开(公告)号：US08743916B2
公开(公告)日：2014-06-03
申请号：US13141910
申请日：2009-02-05
申请人： Shuhei Yamamoto , Yosuke Akino , Takayuki Yanagisawa , Yoshihito Hirano
发明人： Shuhei Yamamoto , Yosuke Akino , Takayuki Yanagisawa , Yoshihito Hirano
IPC分类号： H01S3/109
CPC分类号： H01S3/042 , H01S3/0092 , H01S3/0405 , H01S3/0632 , H01S3/0804 , H01S3/08072 , H01S3/094076 , H01S3/09415 , H01S3/1028 , H01S3/2383 , H01S5/4025 , H04N9/3161
摘要： A plane waveguide type laser includes: a plate-shaped laser medium; a semiconductor laser which causes excitation light to enter an end surface of the laser medium; first and second claddings which are bonded to lower and upper surfaces of the laser medium, respectively, to form a waveguide in a vertical direction; a comb heat sink bonded to a lower surface of the first cladding; and a thermal lens producing portion bonded to an upper surface of the second cladding. In this structure, laser oscillation in the vertical direction is performed in a waveguide mode of the laser medium, and the thermal lens producing portion forms a periodic lens effect in the laser medium to perform laser oscillation in a lateral direction in a plurality of resonant modes.
摘要翻译：平面波导型激光器包括：板状激光介质; 使激发光进入激光介质的端面的半导体激光器; 第一和第二包层分别结合到激光介质的下表面和上表面，以在垂直方向上形成波导; 结合到第一包层的下表面的梳形散热器; 以及粘合到第二包层的上表面的热透镜产生部分。在该结构中，在激光介质的波导模式中进行垂直方向的激光振荡，并且热透镜产生部在激光介质中形成周期性透镜效应，以在多个谐振模式中沿横向进行激光振荡。

4. 发明授权

US08705586B2 Solid-state laser element 有权
标题翻译：固态激光元件
公开(公告)号：US08705586B2
公开(公告)日：2014-04-22
申请号：US12675125
申请日：2007-08-30
申请人： Shuhei Yamamoto , Takayuki Yanagisawa , Yasuharu Koyata , Yoshihito Hirano
发明人： Shuhei Yamamoto , Takayuki Yanagisawa , Yasuharu Koyata , Yoshihito Hirano
IPC分类号： H01S3/06
CPC分类号： H01S3/0632 , H01S3/0405 , H01S3/0606 , H01S3/0615 , H01S3/0621 , H01S3/0625 , H01S3/09415 , H01S3/109 , H01S3/2383 , H01S5/4031 , H01S2301/02
摘要： To suppress the amplification of spontaneous emission light in a principal plane width direction to thereby suppress a gain in directions other than a beam axis direction and output a high-power laser, in a solid-state laser element of a plane waveguide type that causes a fundamental wave laser beam to oscillate in a beam axis direction in a laser medium of a flat shape and forms a waveguide structure in a thickness direction as a direction perpendicular to a principal plane of the flat shape in the laser medium, inclined sections 12 are provided on both sides of the laser medium, the inclined sections 12 inclining a predetermined angle to reflect spontaneous emission light in the laser medium to a principal plane side of the flat shape, the spontaneous emission light traveling in the beam axis direction and a principal plane width direction as a direction perpendicular to the thickness direction.
摘要翻译：为了抑制在主平面宽度方向上的自发发射光的放大，从而抑制波束轴方向以外的方向的增益并输出大功率激光，在平面波导型的固体激光元件中，基波激光束在平坦形状的激光介质中在光束轴方向上振荡，并且在激光介质中形成作为与平面形状的主平面垂直的方向的厚度方向的波导结构，设置倾斜部12 在激光介质的两侧，倾斜部分12倾斜预定角度以将激光介质中的自发发射光反射到平面形状的主平面侧，在射束轴线方向上行进的自发射光和主平面宽度方向作为垂直于厚度方向的方向。

5. 发明授权

US08094690B2 Wavelength converting element and wavelength converting laser apparatus 有权
标题翻译：波长转换元件和波长转换激光装置
公开(公告)号：US08094690B2
公开(公告)日：2012-01-10
申请号：US12677827
申请日：2007-09-12
申请人： Yasuharu Koyata , Takayuki Yanagisawa , Shuhei Yamamoto , Yoshihito Hirano , Tsutomu Nagatsuka
发明人： Yasuharu Koyata , Takayuki Yanagisawa , Shuhei Yamamoto , Yoshihito Hirano , Tsutomu Nagatsuka
IPC分类号： H01S3/10
CPC分类号： G02F1/3544 , G02F1/3775 , H01S3/0092
摘要： A wavelength converting element that is of a planar waveguide type, includes a plate-like nonlinear optical material, and performs a wavelength conversion on a fundamental wave of a laser beam by propagating the fundamental wave in a plurality of laser oscillation modes in a direction perpendicular to a main surface of the plate-like nonlinear optical material, the direction being perpendicular to an optical axis, wherein periods of polarization inversions of the nonlinear optical material are changed so that each of the periods has a width of a phase matching band A that includes phase matching conditions of at least two of the plurality of laser oscillation modes and so that a non-polarization-inversion region and a polarization inversion region are formed in the nonlinear optical material.
摘要翻译：平面波导型的波长转换元件包括板状非线性光学材料，并且通过在垂直方向上以多个激光振荡模式传播基波来对激光束的基波进行波长转换到板状非线性光学材料的主表面，其方向垂直于光轴，其中改变非线性光学材料的偏振反转周期，使得每个周期具有相位匹配带A的宽度，包括多个激光振荡模式中的至少两个的相位匹配条件，并且在非线性光学材料中形成非极化反转区域和极化反转区域。

6. 发明申请

US20110194171A1 OPTICAL WAVELENGTH CONVERSION ELEMENT, WAVELENGTH CONVERSION LASER DEVICE, AND IMAGE DISPLAY DEVICE 有权
标题翻译：光波长转换元件，波长转换激光器件和图像显示器件
公开(公告)号：US20110194171A1
公开(公告)日：2011-08-11
申请号：US13121135
申请日：2009-09-17
申请人： Yosuke Akino , Yoshihito Hirano , Takayuki Yanagisawa , Shuhei Yamamoto , Tsutomu Nagatsuka , Toshiyuki Ando
发明人： Yosuke Akino , Yoshihito Hirano , Takayuki Yanagisawa , Shuhei Yamamoto , Tsutomu Nagatsuka , Toshiyuki Ando
IPC分类号： G02F1/35 , G02B6/10 , H01S3/10
CPC分类号： G02F1/37 , G02F1/3501 , G02F1/3558 , G02F1/377 , G02F1/3775 , G02F2001/3505 , G02F2001/3548 , G02F2201/12 , G02F2202/20 , G02F2203/21 , H01S3/109
摘要： An optical wavelength conversion element includes: a wavelength conversion waveguide that has a periodic polarization reversal structure having alternately and cyclically formed domains of which polarization directions are inverted, that guides light as a fundamental wave corresponding to the periodic polarization reversal structure, and performs a wavelength conversion of the guided fundamental wave; a first clad that is made of a dielectric having a refractive index lower than that of the wavelength conversion waveguide and is provided in contact with the domains; a second clad that is made of a dielectric having a refractive index lower than that of the wavelength conversion waveguide and is provided in contact with the domains such that the second clad is opposed to the first clad film; a first conducting unit that electrically connects the domains in parallel via the first clad; and a second conducting unit that electrically connects the domains in parallel via the second clad.
摘要翻译：光波长转换元件包括：具有周期性极化反转结构的波长转换波导，其具有交替循环形成的极化方向反转的畴，其引导光作为与周期性极化反转结构对应的基波，并且执行波长导向基波的转换; 第一包层，其由折射率低于波长转换波导的折射率的电介质构成，并且与所述畴接触; 第二包层，其由折射率低于波长转换波导的折射率的电介质构成，并且与所述畴接触，使得第二包层与第一包层膜相对; 第一导电单元，其通过第一包层电连接畴; 以及第二导电单元，其通过第二包层电连接所述畴。

7. 发明申请

US20100303112A1 SOLID-STATE LASER ELEMENT 有权
标题翻译：固态激光元件
公开(公告)号：US20100303112A1
公开(公告)日：2010-12-02
申请号：US12675447
申请日：2007-08-30
申请人： Shuhei Yamamoto , Takayuki Yanagisawa , Yasuharu Koyata , Yoshihito Hirano
发明人： Shuhei Yamamoto , Takayuki Yanagisawa , Yasuharu Koyata , Yoshihito Hirano
IPC分类号： H01S5/024 , H01S5/00
CPC分类号： H01S3/0632 , H01S3/0405 , H01S3/0625 , H01S3/09415 , H01S3/109 , H01S3/2383 , H01S2301/02
摘要： To achieve a solid-state laser element capable of outputting a high-power laser, in a planar waveguide type solid-state laser element that causes a plurality of fundamental laser beams to oscillate in a direction of an optic axis within a flat plate-like laser medium, and forms a waveguide structure in a thickness direction of the laser medium, which is a direction perpendicular to a principal surface of the flat plate-like laser medium, the laser medium is separated in a principal-surface width direction of the laser medium, which is a direction perpendicular to the direction of the optic axis and the thickness direction of the laser medium, by a groove extending in the direction of the optic axis within the laser medium.
摘要翻译：为了实现能够输出大功率激光器的固体激光元件，在平面波导型固态激光元件中，其使多个基本激光束沿平板状的光轴方向振荡激光介质，并且在垂直于平板状激光介质的主表面的方向上形成在激光介质的厚度方向上的波导结构，激光介质在激光器的主表面宽度方向上分离介质，其是垂直于光轴方向的方向和激光介质的厚度方向，通过在激光介质内沿光轴方向延伸的凹槽。

8. 发明授权

US09310487B2 Lidar with a plurality of laser light rays having different wavelengths 有权
标题翻译：具有不同波长的多个激光的激光雷达
公开(公告)号：US09310487B2
公开(公告)日：2016-04-12
申请号：US14347938
申请日：2012-12-07
申请人： Takeshi Sakimura , Takayuki Yanagisawa , Shumpei Kameyama , Toshiyuki Ando , Yoshihito Hirano
发明人： Takeshi Sakimura , Takayuki Yanagisawa , Shumpei Kameyama , Toshiyuki Ando , Yoshihito Hirano
IPC分类号： G01C3/08 , G01S17/10 , G01S17/95 , G01S17/58 , G01S7/481 , G01S7/484
CPC分类号： G01S17/102 , G01S7/4815 , G01S7/4818 , G01S7/484 , G01S17/107 , G01S17/58 , G01S17/95 , Y02A90/19
摘要： A lidar includes CW laser light sources that oscillate CW laser light rays with wavelengths different from each other; an optical multiplexing coupler that mixes the CW laser light rays oscillated by the CW laser light sources; an optical branching coupler that splits the CW laser light passing through the mixing by the optical multiplexing coupler; a light modulator that modulates first CW laser light split by the optical branching coupler; and an optical fiber amplifier that amplifies the laser light modulated by the light modulator, in which a transmit-receive optical system irradiates a target with the laser light amplified by the optical fiber amplifier, and receives scattered light of the laser light by the target.
摘要翻译：激光雷达包括CW激光光源，其振荡具有彼此不同波长的CW激光光线; 光复用耦合器，其混合由CW激光光源振荡的CW激光; 光分路耦合器，其通过光复用耦合器分离通过混合的CW激光; 调制由光分路耦合器分离的第一CW激光的光调制器; 以及放大由光调制器调制的激光的光纤放大器，其中发射接收光学系统用由光纤放大器放大的激光照射目标，并且由目标接收激光的散射光。

9. 发明申请

US20130121355A1 MODE CONTROL WAVEGUIDE-TYPE LASER DEVICE 有权
标题翻译：模式控制波形激光器件
公开(公告)号：US20130121355A1
公开(公告)日：2013-05-16
申请号：US13810750
申请日：2010-12-21
申请人： Noriyuki Miyamoto , Shuhei Yamamoto , Takayuki Yanagisawa , Yoshihito Hirano
发明人： Noriyuki Miyamoto , Shuhei Yamamoto , Takayuki Yanagisawa , Yoshihito Hirano
IPC分类号： H01S3/04
CPC分类号： H01S3/04 , H01S3/042 , H01S3/0632 , H01S3/0635 , H01S3/08072 , H01S3/2308 , H01S3/2383
摘要： In a laser device, a control range of focal distance of a generated thermal lens is broadened and reliability is improved. A mode control waveguide-type laser device includes: a planar laser medium having a waveguide structure in a thickness direction of a cross section perpendicular to an optical axis, for generating gain with respect to laser light; a cladding bonded onto the laser medium; and a heat sink bonded onto the laser medium. The laser medium generates a lens effect, and the laser light oscillates in a waveguide mode in the thickness direction, and oscillates in a spatial mode due to the lens effect in a direction perpendicular to the optical axis and the thickness direction. The refractive index distribution within the laser medium is created by generating a temperature distribution in the laser medium depending on a junction area of the cladding and the heat sink.
摘要翻译：在激光装置中，所产生的热透镜的焦距的控制范围变宽，可靠性提高。模式控制波导型激光装置包括：平面激光介质，其在垂直于光轴的横截面的厚度方向上具有波导结构，用于产生相对于激光的增益; 覆盖在激光介质上的包层; 和结合到激光介质上的散热器。激光介质产生透镜效应，并且激光在厚度方向上以波导模式振荡，并且由于在垂直于光轴和厚度方向的方向上的透镜效应而以空间模式振荡。激光介质内的折射率分布是通过根据包层和散热器的接合区域在激光介质中产生温度分布而产生的。

10. 发明授权

US07839908B2 Mode control waveguide laser device 有权
标题翻译：模式控制波导激光器件
公开(公告)号：US07839908B2
公开(公告)日：2010-11-23
申请号：US11579454
申请日：2005-03-30
申请人： Takayuki Yanagisawa , Yoshihito Hirano , Syuhei Yamamoto , Masao Imaki , Kiyohide Sakai , Yasuharu Koyata
发明人： Takayuki Yanagisawa , Yoshihito Hirano , Syuhei Yamamoto , Masao Imaki , Kiyohide Sakai , Yasuharu Koyata
IPC分类号： H01S3/04
CPC分类号： H01S3/0632 , H01S3/0405 , H01S3/0612 , H01S3/08072 , H01S3/094053 , H01S3/09415 , H01S3/109
摘要： Provided is a device capable of oscillating a plurality of oscillation modes within a laser medium for obtaining a fundamental wave output which is easy in output scaling and high in luminance, thereby enabling a second harmonic conversion which is high in efficiency. The device includes: a laser medium (5) that is planar, has a waveguide structure in a thickness direction of a cross-section that is perpendicular to an optical axis (6), and has a cyclic lens effect in a direction perpendicular to the optical axis (6) and the thickness direction; a clad (4) that is bonded onto one surface of the laser medium (5); and heat sink (3) that is bonded onto one surface side of the laser medium (5) through the clad (4), and in the device, a laser oscillation includes a laser oscillation that oscillates in a waveguide mode of the laser medium (5), and a laser oscillation that oscillates in a plurality of resonator modes that are generated by a cyclic lens effect of the laser medium (5).
摘要翻译：提供了一种能够在激光介质内振荡多个振荡模式的装置，用于获得输出缩放容易且亮度高的基波输出，从而实现效率高的二次谐波转换。该装置包括：平面的激光介质（5），在与光轴（6）垂直的横截面的厚度方向上具有波导结构，并且在垂直于光轴的方向上具有循环透镜效应光轴（6）和厚度方向; 在激光介质（5）的一个表面上结合的包层（4）; 以及通过包层（4）结合到激光介质（5）的一个表面侧的散热器（3），并且在该器件中，激光振荡包括以激光介质的波导模式振荡的激光振荡（以及以由激光介质（5）的循环透镜效应产生的多个谐振器模式振荡的激光振荡。

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