公开(公告)号：US20140233013A1

公开(公告)日：2014-08-21

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： G01S17/10

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。

公开(公告)号：US20080025362A1

公开(公告)日：2008-01-31

申请号：US11629278

申请日：2004-06-28

申请人： Syuhei Yamamoto ,  Takayuki Yanagisawa ,  Yoshihito Hirano

发明人： Syuhei Yamamoto ,  Takayuki Yanagisawa ,  Yoshihito Hirano

IPC分类号： H01S3/091

CPC分类号： H01S3/0627 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0606 ,  H01S3/0612 ,  H01S3/094057 ,  H01S3/094084 ,  H01S3/0941

摘要： A pumping module includes a solid state laser medium 3 having a light incidence surface 3a which is bonded to a slab waveguide 2 and which accepts pumping light 1 propagating through the slab waveguide 2, for absorbing the pumping light 1 introduced thereinto via the light incidence surface 3a to amplify laser light, a total reflection film 4 for total-reflecting the laser light which emerges from an opposite surface 3b of the solid state laser medium 3, and an antireflection coating 7 for making the laser light total-reflected by the total reflection film 4 pass therethrough to output the laser light to outside the pumping module. As a result, the pumping module can output high-intensity high-power laser light.

摘要翻译： 泵送模块包括具有光入射表面3a的固态激光介质3，该光入射表面3a连接到平板波导2并且接收通过平板波导2传播的泵浦光1，用于吸收通过光入射引入的泵浦光1 用于放大激光的表面3a，用于全反射从固体激光介质3的相对表面3b出射的激光的全反射膜4和用于使激光全反射的抗反射涂层7 全反射膜4通过，将激光输出到泵送模块的外部。 因此，泵送模块可以输出高强度大功率激光。

公开(公告)号：US20060182162A1

公开(公告)日：2006-08-17

申请号：US10565843

申请日：2003-07-29

申请人： Takayuki Yanagisawa ,  Syuhei Yamamoto ,  Yoshihito Hirano

发明人： Takayuki Yanagisawa ,  Syuhei Yamamoto ,  Yoshihito Hirano

IPC分类号： H01S3/091 ,  H01S3/093 ,  H01S3/094

CPC分类号： H01S3/094084 ,  H01S3/005 ,  H01S3/0405 ,  H01S3/042 ,  H01S3/0604 ,  H01S3/0612 ,  H01S3/07 ,  H01S3/08059 ,  H01S3/08095 ,  H01S3/094057 ,  H01S3/09408 ,  H01S3/0941

摘要： A pumping module includes a plate-shaped solid state laser medium, a reflecting member disposed on a surface of the laser medium which is opposite to a light incidence surface of the laser medium, for reflecting laser light incident upon the laser medium via the light incidence surface and propagating through the laser medium, and a heat sink for removing heat transferred thereto, via the reflecting member, from the laser medium, the light incidence surface having a size of a in a direction perpendicular to a plane defined by both the optical axis of the laser light and the normal to the light incidence surface, and a size of b in a longitudinal direction perpendicular to the former direction and the normal, the sizes having a relationship given by b=a/cos θ, where θ is an incidence angle at which the laser light is incident upon the light incidence surface.

摘要翻译： 泵送模块包括板状固态激光介质，设置在与激光介质的入射表面相对的激光介质的表面上的反射部件，用于反射通过光入射入射在激光介质上的激光 通过激光介质传播并传播通过反射构件传递到其上的热量的散热器，激光介质的入射表面具有垂直于由光轴 的激光和垂直于光入射表面的尺寸，以及在垂直于前一方向和法线的纵向方向上的b的尺寸，尺寸具有由b = a /cosθ给出的关系，其中θ是入射角 激光入射到光入射面上的角度。

公开(公告)号：US06765654B2

公开(公告)日：2004-07-20

申请号：US10296043

申请日：2002-11-21

申请人： Kimio Asaka ,  Yoshihito Hirano ,  Takayuki Yanagisawa

发明人： Kimio Asaka ,  Yoshihito Hirano ,  Takayuki Yanagisawa

IPC分类号： G01C308

CPC分类号： G01S17/58 ,  G01S7/497 ,  G01S17/10

摘要： An object of the invention is to obtain a coherent laser radar device that provides one system of a photo detector and eliminates a blind zone, including a pulsed laser that oscillates at a frequency which is identical with or close to an output light of a local light source as a single frequency; a transmission/reception optical system that irradiates a pulsed laser beam from the pulsed laser toward a target as a transmission light and receives a scattered light from the target as a reception light; a light coupling means that couples the output light from the local light source and the reception light; a photo detecting portion that conducts light coherent detection on a coupled light; and a signal processing device that calculates a speed and a distance of a target in accordance with an output of the detection, in which the photo detecting portion comprises: a photo detecting element that conducts the light coherent detection; a microwave switch that changes over a propagation path of an output from the photo detecting element; a microwave amplifier; and a switch control means that changes over the microwave switch so as to transmit a signal before a reference time as a monitor signal and transmit a signal after the reference time as a reception signal with a time at which the pulse light from the pulsed laser has completely passed through the transmission/reception optical system as the reference time.

摘要翻译： 本发明的目的是获得一种相干激光雷达装置，其提供光检测器的一个系统并消除盲区，包括以与局部光的输出光相同或接近的频率振荡的脉冲激光 源为单频; 发送/接收光学系统，其将来自脉冲激光的脉冲激光束照射到作为透射光的目标，并且接收来自目标的散射光作为接收光; 光耦合装置，其耦合来自本地光源的输出光和接收光; 在耦合光上进行光相干检测的光检测部; 以及信号处理装置，其根据检测的输出来计算目标的速度和距离，其中光检测部分包括：光检测元件，其进行光相干检测; 微波开关，其从所述光检测元件的输出的传播路径改变; 微波放大器; 以及切换控制装置，其转换微波开关，以便在参考时间之前传送信号作为监视信号，并且在参考时间之后将信号作为接收信号发送，其中来自脉冲激光器的脉冲光具有时间 完全通过发送/接收光学系统作为参考时间。

公开(公告)号：US06738407B2

公开(公告)日：2004-05-18

申请号：US10425883

申请日：2003-04-30

申请人： Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata ,  Nicolaie Pavel

发明人： Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata ,  Nicolaie Pavel

IPC分类号： H01S309

CPC分类号： H01S3/0941 ,  H01S3/0407 ,  H01S3/061 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/094057 ,  H01S3/09408 ,  H01S3/094084 ,  H01S5/4031

摘要： A solid-state laser rod pumping module has a stack-type semiconductor laser including a plurality of bar-shaped components that are stacked in a direction parallel to the axis of a solid-state laser rod. Each bar-shaped component includes a plurality of laser-light-emitting portions that are aligned and integrated in a direction orthogonal to the axis of the solid-state laser rod. The large divergence angle of the stack-type semiconductor can be compensated by including a light focusing component for focusing laser light emitted out of the stack-type semiconductor laser. The focused light is guided by a laser light guiding component disposed in a diffusive reflection tube. A light guiding component guides the focused light onto a solid-state laser rod located within the diffusive reflective tube, while maintaining the length of one side of the cross section of the guided light.

摘要翻译： 固体激光棒泵模块具有堆叠型半导体激光器，其包括沿与固态激光棒的轴线平行的方向堆叠的多个棒状部件。 每个棒状部件包括在与固态激光棒的轴线正交的方向上对准和集成的多个激光发射部。 可以通过包括用于聚焦从堆叠型半导体激光器发射的激光聚焦的光聚焦分量来补偿堆叠型半导体的大发散角。 聚焦光由布置在漫反射管中的激光导向部件引导。 导光部件将聚焦光引导到位于漫射反射管内的固态激光棒上，同时保持引导光的横截面的一侧的长度。

公开(公告)号：US06738397B2

公开(公告)日：2004-05-18

申请号：US10121705

申请日：2002-04-15

申请人： Shuhei Yamamoto ,  Yoshihito Hirano ,  Ichiro Shoji ,  Takunori Taira ,  Sunao Kurimura

发明人： Shuhei Yamamoto ,  Yoshihito Hirano ,  Ichiro Shoji ,  Takunori Taira ,  Sunao Kurimura

IPC分类号： H01S310

CPC分类号： G02F1/3534 ,  G02F2203/13

摘要： A solid-state light source apparatus includes a first excitation laser light source for outputting a laser beam of a first wavelength, a second excitation laser light source for outputting a laser beam of a second wavelength, a difference frequency between the laser beam of the first wavelength and the laser beam of the second wavelength being in a terahertz band, and a semiconductor pseudo phase matching device which is disposed at a place where a first optical axis of the laser beam of the first wavelength overlaps with a second optical axis of the laser beam of the second wavelength, and generates a terahertz beam in a direction coaxial with the first and second optical axes on the basis of irradiation of the laser beams of the first and second wavelengths. Thus, high output and high efficiency terahertz wave generation can be easily and certainly realized while a narrow line width characteristic is maintained.

摘要翻译： 固态光源装置包括：第一激发光源，用于输出第一波长的激光;第二激光激光源，其输出第二波长的激光;第二激光激光源， 并且所述第二波长的激光束处于太赫兹波段，以及半导体伪相位匹配装置，其设置在所述第一波长的所述激光束的第一光轴与所述激光的第二光轴重叠的位置处 并且基于第一和第二波长的激光束的照射，在与第一和第二光轴同轴的方向上产生太赫兹光束。 因此，可以容易且可靠地实现高输出和高效率的太赫兹波生成，同时保持窄的线宽特性。

公开(公告)号：US08517542B2

公开(公告)日：2013-08-27

申请号：US12996888

申请日：2010-04-23

申请人： Takao Endo ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Yasuhisa Tamagawa

发明人： Takao Endo ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Yasuhisa Tamagawa

IPC分类号： G03B21/14

CPC分类号： H01L21/268 ,  G02B6/0008 ,  G03B21/2013 ,  G03B21/2033 ,  G03B21/204 ,  G03B21/208 ,  G03B21/28 ,  G03B21/62 ,  H01S5/005 ,  H01S5/02284 ,  H01S5/4012 ,  H01S5/4025

摘要： A laser illumination device for providing a light intensity distribution of a high-intensity and uniform illumination light flux is obtained. The device includes a plurality of light source modules (20) each including: a plurality of light source units (8), in each of which a semiconductor laser (1), and a laser medium (5) and a nonlinear material (7) which are flat-shaped and have a waveguide structure are arranged on the same plane, for performing continuous oscillation in a waveguide mode of the laser medium (5); and a first optical system (12) for coupling laser oscillation beams from the plurality of light source units (8). The device further includes: a second optical system (15) for coupling laser light beams propagating from the plurality of light source modules (20) through first optical fibers (13) and a second optical fiber array (14); a uniformization element (16) for converting a laser light beam from the second optical system (15) into a uniform laser light beam; and a third optical system (17) for projecting, to a substrate (19) which is an illuminated surface (18), the uniform laser light beam obtained through the uniformization element (16) at a predetermined magnification, to produce an illumination light flux (11).

摘要翻译： 获得用于提供高强度和均匀照明光通量的光强度分布的激光照明装置。 该装置包括多个光源模块（20），每个光源模块包括：多个光源单元（8），每个光源单元（8）中的每一个都具有半导体激光器（1）和激光介质（5）和非线性材料（7） 平面状的波导结构被布置在同一平面上，用于在激光介质（5）的波导模式中进行连续振荡。 以及用于耦合来自所述多个光源单元（8）的激光振荡光束的第一光学系统（12）。 该装置还包括：第二光学系统（15），用于将从多个光源模块（20）传播的激光束通过第一光纤（13）和第二光纤阵列（14）耦合; 用于将来自第二光学系统（15）的激光束转换成均匀的激光束的均匀化元件（16）; 以及第三光学系统（17），用于将以通过所述均匀化元件（16）获得的均匀的激光束以预定的倍率投射到作为照明表面（18）的基板（19），以产生照明光通量 （11）。

公开(公告)号：US20110090462A1

公开(公告)日：2011-04-21

申请号：US12996888

申请日：2010-04-23

申请人： Takao Endo ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Yasuhisa Tamagawa

发明人： Takao Endo ,  Shuhei Yamamoto ,  Yoshihito Hirano ,  Yasuhisa Tamagawa

IPC分类号： G03B21/26 ,  H01L21/26 ,  G21K5/00

CPC分类号： H01L21/268 ,  G02B6/0008 ,  G03B21/2013 ,  G03B21/2033 ,  G03B21/204 ,  G03B21/208 ,  G03B21/28 ,  G03B21/62 ,  H01S5/005 ,  H01S5/02284 ,  H01S5/4012 ,  H01S5/4025

摘要： A laser illumination device for providing a light intensity distribution of a high-intensity and uniform illumination light flux is obtained. The device includes a plurality of light source modules (20) each including: a plurality of light source units (8), in each of which a semiconductor laser (1), and a laser medium (5) and a nonlinear material (7) which are flat-shaped and have a waveguide structure are arranged on the same plane, for performing continuous oscillation in a waveguide mode of the laser medium (5); and a first optical system (12) for coupling laser oscillation beams from the plurality of light source units (8). The device further includes: a second optical system (15) for coupling laser light beams propagating from the plurality of light source modules (20) through first optical fibers (13) and a second optical fiber array (14); a uniformization element (16) for converting a laser light beam from the second optical system (15) into a uniform laser light beam; and a third optical system (17) for projecting, to a substrate (19) which is an illuminated surface (18), the uniform laser light beam obtained through the uniformization element (16) at a predetermined magnification, to produce an illumination light flux (11).

摘要翻译： 获得用于提供高强度和均匀照明光通量的光强度分布的激光照明装置。 该装置包括多个光源模块（20），每个光源模块包括：多个光源单元（8），每个光源单元（8）中的每一个都具有半导体激光器（1）和激光介质（5）和非线性材料（7） 平面状的波导结构被布置在同一平面上，用于在激光介质（5）的波导模式中进行连续振荡。 以及用于耦合来自所述多个光源单元（8）的激光振荡光束的第一光学系统（12）。 该装置还包括：第二光学系统（15），用于将从多个光源模块（20）传播的激光束通过第一光纤（13）和第二光纤阵列（14）耦合; 用于将来自第二光学系统（15）的激光束转换成均匀的激光束的均匀化元件（16）; 以及第三光学系统（17），用于将以通过所述均匀化元件（16）获得的均匀的激光束以预定的倍率投射到作为照明表面（18）的基板（19），以产生照明光通量 （11）。

公开(公告)号：US06567453B1

公开(公告)日：2003-05-20

申请号：US09598850

申请日：2000-06-21

申请人： Shuhei Yamamoto ,  Yasuharu Koyata ,  Yoshihito Hirano

发明人： Shuhei Yamamoto ,  Yasuharu Koyata ,  Yoshihito Hirano

IPC分类号： H01S314

CPC分类号： H01S3/08 ,  H01S3/08045 ,  H01S3/08072 ,  H01S3/1312 ,  H01S3/16

摘要： A solid-state laser oscillator comprising solid-state laser rods disposed coaxially in series with each other, radiating light when excited, and amplifying the light through stimulated emission. A solid-state laser rod exciting device excites any number of solid-state laser rods with a 90° optical rotator disposed coaxially and arranged between the rods. The rotator rotates a component of the light generated in the axial direction while heat lens compensating devices are disposed coaxially with the solid-state laser rods. A reflecting device and a partial reflection device are disposed coaxially and arranged, outside of the solid-state laser rods and heat lens compensating devices, for propagating the axially generated component of the light. An exciting source driving device drives the exciting sources included in the solid-state laser rod exciting device.

摘要翻译： 一种固态激光振荡器，包括彼此同轴地布置的固态激光棒，激发时照射光，并通过受激发射放大光。 固体激光棒激发装置激发任何数量的固态激光棒，其中90°光旋转器同轴布置并布置在棒之间。 旋转体旋转沿轴向产生的光的分量，同时热透镜补偿装置与固态激光棒同轴设置。 反射装置和部分反射装置同轴地布置在固态激光棒和热透镜补偿装置的外部，用于传播轴向产生的光分量。 激励源驱动装置驱动固态激光棒激励装置中包含的激励源。

公开(公告)号：US07221694B2

公开(公告)日：2007-05-22

申请号：US10751997

申请日：2004-01-07

申请人： Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata ,  Nicolaie Pavel

发明人： Yoshihito Hirano ,  Shuhei Yamamoto ,  Yasuharu Koyata ,  Nicolaie Pavel

IPC分类号： H01S3/094 ,  H01S5/00

CPC分类号： H01S3/0941 ,  H01S3/0407 ,  H01S3/061 ,  H01S3/0625 ,  H01S3/08095 ,  H01S3/094057 ,  H01S3/09408 ,  H01S3/094084 ,  H01S5/4031

摘要： A solid-state laser rod pumping module has a stack-type semiconductor laser including a plurality of bar-shaped components that are stacked in a direction parallel to the axis of a solid-state laser rod. Each bar-shaped component includes a plurality of laser-light-emitting portions that are aligned and integrated in a direction orthogonal to the axis of the solid-state laser rod. The large divergence angle of the stack-type semiconductor can be compensated by including a light focusing component for focusing laser light emitted out of the stack-type semiconductor laser. The focused light is guided by a laser light guiding component disposed in a diffusive reflection tube. A light guiding component guides the focused light onto a solid-state laser rod located within the diffusive reflective tube, while maintaining the length of one side of the cross section of the guided light.

摘要翻译： 固体激光棒泵模块具有堆叠型半导体激光器，其包括沿与固态激光棒的轴线平行的方向堆叠的多个棒状部件。 每个棒状部件包括在与固态激光棒的轴线正交的方向上对准和集成的多个激光发射部。 可以通过包括用于聚焦从堆叠型半导体激光器发射的激光聚焦的光聚焦分量来补偿堆叠型半导体的大发散角。 聚焦光由布置在漫反射管中的激光导向部件引导。 导光部件将聚焦光引导到位于漫射反射管内的固态激光棒上，同时保持引导光的横截面的一侧的长度。