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公开(公告)号：US20100303108A1
公开(公告)日：2010-12-02
申请号：US12677827
申请日：2007-09-12
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。
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公开(公告)号：US09197029B2
公开(公告)日：2015-11-24
申请号：US13810750
申请日：2010-12-21
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。
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公开(公告)号：US08068525B2
公开(公告)日：2011-11-29
申请号：US12675447
申请日：2007-08-30
IPC分类号： H01S3/04
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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公开(公告)号：US08559477B2
公开(公告)日：2013-10-15
申请号：US13416460
申请日：2012-03-09
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。
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公开(公告)号：US08149887B2
公开(公告)日：2012-04-03
申请号：US12669966
申请日：2007-07-27
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。
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公开(公告)号：US08073024B2
公开(公告)日：2011-12-06
申请号：US12671458
申请日：2007-07-30
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。
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公开(公告)号：US20100202477A1
公开(公告)日：2010-08-12
申请号：US12671458
申请日：2007-07-30
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。
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公开(公告)号：US20060050756A1
公开(公告)日：2006-03-09
申请号：US10532133
申请日：2003-06-20
CPC分类号： H01S3/0941 , H01S3/0405 , H01S3/0407 , H01S3/042 , H01S3/0632 , H01S3/0815 , H01S3/094084 , H01S3/09415 , H01S3/1618 , H01S3/1643 , H01S5/005 , H01S5/4012 , H01S5/4025 , H01S2301/02
摘要： A solid state laser pumping module (1) is so constructed as to have a plate-shaped non-doped medium (4) having a refractive index close to that of a thin solid state laser medium (3) and having no active material, the non-doped medium being disposed on a surface of the thin solid state laser medium (3) which is opposite to a reflecting surface of the thin solid state laser medium (3). Pumping light is reflected between the reflecting surface of the thin solid state laser medium (3) and a reflecting surface of the non-doped medium (4) arranged on a side of the opposite surface of the thin solid state laser medium (3) while pumping the thin solid state laser medium (3). A laser beam is taken out of the thin solid state laser medium.
摘要翻译： 固态激光泵浦模块（1）被构造成具有折射率接近薄固体激光介质（3）的折射率并且不具有活性材料的板状非掺杂介质（4）， 非掺杂介质设置在薄固态激光介质（3）的与薄固态激光介质（3）的反射面相反的表面上。 抽吸光在薄固态激光介质（3）的反射表面和布置在薄固体激光介质（3）的相对表面侧的非掺杂介质（4）的反射表面之间反射，同时 泵送薄的固态激光介质（3）。 从薄的固体激光介质中取出激光束。
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19.发明授权公开(公告)号：US09310487B2
公开(公告)日：2016-04-12
申请号：US14347938
申请日：2012-12-07
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。
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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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