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1. 发明申请

US20100189151A1 PLANAR WAVEGUIDE LASER DEVICE 有权
标题翻译：平面波导激光器件
公开(公告)号：US20100189151A1
公开(公告)日：2010-07-29
申请号：US12669966
申请日：2007-07-27
申请人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
发明人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
IPC分类号： H01S5/327 , H01S5/10
CPC分类号： H01S3/0632 , H01S3/0612 , H01S3/0625 , H01S3/10061 , H01S3/1308 , H01S3/1611 , H01S3/1673
摘要： A planar waveguide laser device forms a waveguide by a plate-like laser medium having birefringence and clad attached to at least one of the surfaces of the laser medium perpendicular to its thickness direction, amplifies laser light by a gain produced by excitation light incident on the laser medium, and performs laser oscillation. The laser medium is formed of a material having an optic axis on a cross section perpendicular to the light axis, which is the laser travelling direction. The clad is formed of a material having a refractive index in a range between refractive indexes of two polarized lights that travel along the light axis in the laser medium and have oscillation surfaces that are orthogonal to each other. The planar waveguide laser device readily oscillates linearly polarized laser light.
摘要翻译：平面波导激光器件通过具有双折射和包层的板状激光介质形成波导，激光介质垂直于其厚度方向附着在激光介质的至少一个表面上，通过由入射到其上的激发光产生的增益来放大激光激光介质，进行激光振荡。激光介质由在垂直于作为激光行进方向的光轴的横截面上具有光轴的材料形成。包层由折射率在激光介质中沿着光轴行进的两个偏振光的折射率之间的范围内的材料形成，并且具有彼此正交的振动表面。平面波导激光器件容易振荡线偏振激光。

2. 发明授权

US08559477B2 Planar waveguide laser device 有权
标题翻译：平面波导激光器件
公开(公告)号：US08559477B2
公开(公告)日：2013-10-15
申请号：US13416460
申请日：2012-03-09
申请人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
发明人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
IPC分类号： H01S3/16
CPC分类号： H01S3/0632 , H01S3/0612 , H01S3/0625 , H01S3/10061 , H01S3/1308 , H01S3/1611 , H01S3/1673
摘要： A planar waveguide laser device forms a waveguide by a plate-like laser medium (1) having birefringence and clad (2a, 2b) attached to at least one of the surfaces of the laser medium (1) perpendicular to its thickness direction, amplifies laser light by a gain produced by excitation light incident on the laser medium (1), and performs laser oscillation. The laser medium (1) is formed of a material having an optic axis on a cross section perpendicular to the light axis, which is the laser travelling direction. The clad (2a, 2b) is formed of a material having a refractive index in a range between refractive indexes of two polarized lights that travel along the light axis in the laser medium (1) and have oscillation surfaces that are orthogonal to each other. The planar waveguide laser device readily oscillates linearly polarized laser light.
摘要翻译：平面波导激光器件通过具有双折射的板状激光介质（1）和与激光介质（1）的垂直于其厚度方向的至少一个表面附着的包层（2a，2b））形成波导，放大激光通过入射到激光介质（1）上的激发光产生的增益来进行激光振荡。激光介质（1）由垂直于作为激光行进方向的光轴的横截面上具有光轴的材料形成。包层（2a，2b）由折射率在激光介质（1）中沿着光轴行进的两个偏振光的折射率之间的范围内的材料形成，并且具有彼此正交的振动表面。平面波导激光器件容易振荡线偏振激光。

3. 发明授权

US08149887B2 Planar waveguide laser device 有权
标题翻译：平面波导激光器件
公开(公告)号：US08149887B2
公开(公告)日：2012-04-03
申请号：US12669966
申请日：2007-07-27
申请人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
发明人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
IPC分类号： H01S3/16
CPC分类号： H01S3/0632 , H01S3/0612 , H01S3/0625 , H01S3/10061 , H01S3/1308 , H01S3/1611 , H01S3/1673
摘要： A planar waveguide laser device forms a waveguide by a plate-like laser medium having birefringence and clad attached to at least one of the surfaces of the laser medium perpendicular to its thickness direction, amplifies laser light by a gain produced by excitation light incident on the laser medium, and performs laser oscillation. The laser medium is formed of a material having an optic axis on a cross section perpendicular to the light axis, which is the laser travelling direction. The clad is formed of a material having a refractive index in a range between refractive indexes of two polarized lights that travel along the light axis in the laser medium and have oscillation surfaces that are orthogonal to each other. The planar waveguide laser device readily oscillates linearly polarized laser light.
摘要翻译：平面波导激光器件通过具有双折射和包层的板状激光介质形成波导，激光介质垂直于其厚度方向附着在激光介质的至少一个表面上，通过由入射到其上的激发光产生的增益来放大激光激光介质，进行激光振荡。激光介质由在垂直于作为激光行进方向的光轴的横截面上具有光轴的材料形成。包层由折射率在激光介质中沿着光轴行进的两个偏振光的折射率之间的范围内的材料形成，并且具有彼此正交的振动表面。平面波导激光器件容易振荡线偏振激光。

4. 发明授权

US08073024B2 Wavelength conversion laser device 有权
标题翻译：波长转换激光器件
公开(公告)号：US08073024B2
公开(公告)日：2011-12-06
申请号：US12671458
申请日：2007-07-30
申请人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
发明人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
IPC分类号： H01S3/10
CPC分类号： H01S3/109 , H01S3/09415 , H01S3/1611 , H01S3/1673
摘要： A wavelength conversion laser device includes a solid-state laser element having a waveguide structure including a laser medium that amplifies laser beams by providing a gain generated due to absorption of pump light to the laser beams and outputs a fundamental wave, and a wavelength conversion element having a waveguide structure including a nonlinear optical material that converts a part of a fundamental wave output from the solid-state laser element to a second harmonic, to resonate the fundamental wave by an optical resonator structure including the solid-state laser element and the wavelength conversion element and outputs a second harmonic from the wavelength conversion element. The solid-state laser element outputs a linearly polarized fundamental wave, and differentiates a polarization state of a fundamental wave having passed through the wavelength conversion element and entering into the solid-state laser element from linear polarization output from the solid-state laser element, so that wavelength conversion efficiency of the wavelength conversion element is not decreased in a peak wavelength of a gain band.
摘要翻译：波长转换激光器件包括具有波导结构的固体激光元件，该波导结构包括激光介质，该激光介质通过将由于泵浦光吸收而产生的增益提供给激光束并输出基波来放大激光束;以及波长转换元件具有包括将从固体激光元件输出的基波的一部分转换为二次谐波的非线性光学材料的波导结构，通过包括固体激光元件和波长的光学谐振器结构共振基波并且从波长转换元件输出二次谐波。固体激光元件输出线偏振的基波，并且通过波长转换元件的基波的偏振状态和从固体激光元件的线偏振输出进入固体激光元件，使得在增益带的峰值波长中波长转换元件的波长转换效率不降低。

5. 发明申请

US20100202477A1 WAVELENGTH CONVERSION LASER DEVICE 有权
标题翻译：波长转换激光器件
公开(公告)号：US20100202477A1
公开(公告)日：2010-08-12
申请号：US12671458
申请日：2007-07-30
申请人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
发明人： Takayuki Yanagisawa , Yoshihito Hirano , Shuhei Yamamoto , Yasuharu Koyata
IPC分类号： H01S3/10
CPC分类号： H01S3/109 , H01S3/09415 , H01S3/1611 , H01S3/1673
摘要： A wavelength conversion laser device includes a solid-state laser element having a waveguide structure including a laser medium that amplifies laser beams by providing a gain generated due to absorption of pump light to the laser beams and outputs a fundamental wave, and a wavelength conversion element having a waveguide structure including a nonlinear optical material that converts a part of a fundamental wave output from the solid-state laser element to a second harmonic, to resonate the fundamental wave by an optical resonator structure including the solid-state laser element and the wavelength conversion element and outputs a second harmonic from the wavelength conversion element. The solid-state laser element outputs a linearly polarized fundamental wave, and differentiates a polarization state of a fundamental wave having passed through the wavelength conversion element and entering into the solid-state laser element from linear polarization output from the solid-state laser element, so that wavelength conversion efficiency of the wavelength conversion element is not decreased in a peak wavelength of a gain band.
摘要翻译：波长转换激光器件包括具有波导结构的固体激光元件，该波导结构包括激光介质，该激光介质通过将由于泵浦光吸收而产生的增益提供给激光束并输出基波来放大激光束;以及波长转换元件具有包括将从固体激光元件输出的基波的一部分转换为二次谐波的非线性光学材料的波导结构，通过包括固体激光元件和波长的光学谐振器结构共振基波并且从波长转换元件输出二次谐波。固体激光元件输出线偏振的基波，并且通过波长转换元件的基波的偏振状态和从固体激光元件的线偏振输出进入固体激光元件，使得在增益带的峰值波长中波长转换元件的波长转换效率不降低。

6. 发明申请

US20100303120A1 SOLID-STATE LASER ELEMENT 有权
标题翻译：固态激光元件
公开(公告)号：US20100303120A1
公开(公告)日：2010-12-02
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。

7. 发明申请

US20100303108A1 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器
公开(公告)号：US20100303108A1
公开(公告)日：2010-12-02
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。

8. 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。

9. 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。

10. 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。

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