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1. 发明授权

US07239654B2 Wave length plate, wavelength filter and wavelength monitor 失效
标题翻译：波长板，波长滤波器和波长监视器
公开(公告)号：US07239654B2
公开(公告)日：2007-07-03
申请号：US10250454
申请日：2002-10-31
申请人： Masao Imaki , Syuhei Yamamoto , Youhei Mikami , Yoshihito Hirano , Makoto Satou , Kenji Masuda , Yasunori Nishimura , Yuji Masuyama
发明人： Masao Imaki , Syuhei Yamamoto , Youhei Mikami , Yoshihito Hirano , Makoto Satou , Kenji Masuda , Yasunori Nishimura , Yuji Masuyama
IPC分类号： H01S3/10
CPC分类号： H01S5/0687 , G01J9/00 , G02B1/02 , G02B5/3083 , G02B27/288 , H01S5/0612 , H01S5/0683
摘要： On a plate of birefringent crystal made of an LiNbO3 crystal or an LiTaO3 crystal, a conductive substance is adhered to the whole periphery of side surfaces of the plate that intersect an incident surface of a laser beam, thereby to form a wave plate. A polarizer is provided at the latter stage of the wave plate. A wavelength is monitored based on an output from the polarizer. With this arrangement, based on the use of the LiNbO3 crystal or the LiTaO3 crystal that can be manufactured by a large quantity at low cost, it is possible to obtain polarization characteristics and wavelength discrimination characteristics that are stable against environmental changes such as temperature and external stress, by suppressing the pyroelectric effect and the piezoelectric effect of these materials.
摘要翻译：在由LiNbO 3·结晶或LiTaO 3·结晶制成的双折射晶体平板上，导电物质附着在板的侧表面的整个周边，激光束的入射面，从而形成波片。在波片的后段提供偏振器。基于偏振器的输出监视波长。利用这种布置，基于可以以低成本大量制造的LiNbO 3/3结晶或LiTaO 3·结晶的用途，可以获得极化通过抑制这些材料的热电效应和压电效应，对温度和外部应力等环境变化稳定的特性和波长辨别特性。

2. 发明申请

US20080095202A1 Mode Control Waveguide Laser Device 有权
标题翻译：模式控制波导激光设备
公开(公告)号：US20080095202A1
公开(公告)日：2008-04-24
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： H01S3/063
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。

3. 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。

4. 发明申请

US20060071846A1 Coherent laser radar 有权
标题翻译：相干激光雷达
公开(公告)号：US20060071846A1
公开(公告)日：2006-04-06
申请号：US10520128
申请日：2003-05-30
申请人： Yakayuki Yanagisawa , Syuhei Yamamoto , Yoshihito Hirano , Shumpei Kameyama , Toshiyuki Ando
发明人： Yakayuki Yanagisawa , Syuhei Yamamoto , Yoshihito Hirano , Shumpei Kameyama , Toshiyuki Ando
IPC分类号： G01S13/00
CPC分类号： G01S7/481 , G01S7/48 , G01S7/4811 , G01S7/4813 , G01S7/4818 , G01S7/484 , G01S7/499 , G01S17/06 , G01S17/95 , G02F1/39 , Y02A90/19
摘要： To obtain a coherent laser radar device that realizes high reliability and the high output of a transmitted light, the device includes a first optical coupler that branches a laser beam from a laser source into two lights, a local light and a transmitted light, an optical modulator that modulates the transmitted light, a space type optical amplifier that amplifies the modulated transmitted light, a transmitting/receiving optical system that applies the amplified transmitted light toward a target and receives a scattered light from the target, a transmitting/receiving light splitting device that splits the transmitted light and the received light, a second optical coupler that mixes the local light and the split received light together, a photodetector that detects heterodyne of a mixed light, a beat signal amplifier that amplifies a detected signal, a signal processing device that processes an amplified signal, and a display device that displays a processed result. The first and second optical couplers and an optical modulator are structured by polarization maintained type optical elements, and an optical path that extends from the laser source to the space type optical amplifier through the first optical coupler, an optical path that extends from the transmitting/receiving light splitting device to the photodetector through the second optical coupler, and an optical path that extends from the first optical coupler to the second optical coupler are connected by polarization maintained type single mode optical fibers.
摘要翻译：为了获得实现高可靠性和透射光的高输出的相干激光雷达装置，该装置包括第一光耦合器，其将来自激光源的激光束分成两个光，局部光和透射光，光学调制透射光的调制器，放大经调制的透射光的空间型光放大器，将放大的透射光施加到目标并接收来自目标的散射光的发射/接收光学系统，发射/接收分光装置将透射光和接收光分开的第二光耦合器，将局部光和分离的接收光混合在一起的第二光耦合器，检测混合光的外差的光电检测器，放大检测信号的拍频信号放大器，信号处理装置处理放大信号，以及显示处理结果的显示装置。第一和第二光耦合器和光调制器由偏振维持型光学元件构成，以及通过第一光耦合器从激光源延伸到空间型光放大器的光路，从发射/ 通过所述第二光耦合器将光分离装置接收到所述光电检测器，并且从所述第一光耦合器延伸到所述第二光耦合器的光路通过偏振维持型单模光纤连接。

5. 发明申请

US20080025362A1 Solid-State-Laser Pumping Module 审中-公开
标题翻译：固态激光泵浦模块
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。

6. 发明申请

US20060182162A1 Solid laser exciting module and laser oscillator 审中-公开
标题翻译：固体激光激光模块和激光振荡器
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。

7. 发明授权

US07295290B2 Coherent laser radar 有权
标题翻译：相干激光雷达
公开(公告)号：US07295290B2
公开(公告)日：2007-11-13
申请号：US10520128
申请日：2003-05-30
申请人： Takayuki Yanagisawa , Syuhei Yamamoto , Yoshihito Hirano , Shumpei Kameyama , Toshiyuki Ando
发明人： Takayuki Yanagisawa , Syuhei Yamamoto , Yoshihito Hirano , Shumpei Kameyama , Toshiyuki Ando
IPC分类号： G01C3/08
CPC分类号： G01S7/481 , G01S7/48 , G01S7/4811 , G01S7/4813 , G01S7/4818 , G01S7/484 , G01S7/499 , G01S17/06 , G01S17/95 , G02F1/39 , Y02A90/19
摘要： To obtain a coherent laser radar device that realizes high reliability and the high output of a transmitted light, the device includes a first optical coupler that branches a laser beam from a laser source into two lights, a local light and a transmitted light, an optical modulator that modulates the transmitted light, a space type optical amplifier that amplifies the modulated transmitted light, a transmitting/receiving optical system that applies the amplified transmitted light toward a target and receives a scattered light from the target, a transmitting/receiving light splitting device that splits the transmitted light and the received light, a second optical coupler that mixes the local light and the split received light together, a photodetector that detects heterodyne of a mixed light, a beat signal amplifier that amplifies a detected signal, a signal processing device that processes an amplified signal, and a display device that displays a processed result. The first and second optical couplers and an optical modulator are structured by polarization maintained type optical elements, and an optical path that extends from the laser source to the space type optical amplifier through the first optical coupler, an optical path that extends from the transmitting/receiving light splitting device to the photodetector through the second optical coupler, and an optical path that extends from the first optical coupler to the second optical coupler are connected by polarization maintained type single mode optical fibers.
摘要翻译：为了获得实现高可靠性和透射光的高输出的相干激光雷达装置，该装置包括第一光耦合器，其将来自激光源的激光束分成两个光，局部光和透射光，光学调制透射光的调制器，放大经调制的透射光的空间型光放大器，将放大的透射光施加到目标并接收来自目标的散射光的发射/接收光学系统，发射/接收分光装置将透射光和接收光分开的第二光耦合器，将局部光和分离的接收光混合在一起的第二光耦合器，检测混合光的外差的光电检测器，放大检测信号的拍频信号放大器，信号处理装置处理放大信号，以及显示处理结果的显示装置。第一和第二光耦合器和光调制器由偏振维持型光学元件构成，以及通过第一光耦合器从激光源延伸到空间型光放大器的光路，从发射/ 通过所述第二光耦合器将光分离装置接收到所述光电检测器，并且从所述第一光耦合器延伸到所述第二光耦合器的光路通过偏振维持型单模光纤连接。

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