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公开(公告)号：US08743916B2
公开(公告)日：2014-06-03
申请号：US13141910
申请日：2009-02-05
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 。
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2.发明申请OPTICAL WAVELENGTH CONVERSION ELEMENT, WAVELENGTH CONVERSION LASER DEVICE, AND IMAGE DISPLAY DEVICE 有权光波长转换元件，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
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。
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公开(公告)号：US20110255562A1
公开(公告)日：2011-10-20
申请号：US13141910
申请日：2009-02-05
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 according to the present invention includes: a plate-shaped laser medium (5); a semiconductor laser (1) which causes excitation light to enter an end surface (5a) of the laser medium (5); first and second claddings (4a and 4b) which are bonded to lower and upper surfaces of the laser medium (5), respectively, to form a waveguide in a vertical direction; a comb heat sink (2) bonded to a lower surface of the first cladding (4a); and thermal lens producing means (20) bonded to an upper surface of the second cladding (4b). In this structure, laser oscillation in the vertical direction is performed in a waveguide mode of the laser medium (5), and the thermal lens producing means (20) forms a periodic lens effect in the laser medium (5) to perform laser oscillation in a lateral direction in a plurality of resonant modes. Therefore, a resonator having a small round-trip loss maybe formed without depending on a size of a thermal lens produced by excitation, and hence a rising characteristic of a pulse operation or a CW operation may be smoothed to obtain high-power stable output.
摘要翻译： 根据本发明的平面波导型激光器包括：板状激光介质（5）; 使激发光进入激光介质（5）的端面（5a）的半导体激光器（1）; 第一和第二包层（4a和4b），其分别结合到激光介质（5）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（4a）的下表面的梳形散热器（2）; 以及粘合到第二包层（4b）的上表面的热透镜产生装置（20）。 在这种结构中，在激光介质（5）的波导模式中执行垂直方向的激光振荡，并且热透镜产生装置（20）在激光介质（5）中形成周期性透镜效应，以在 多个谐振模式中的横向方向。 因此，可以在不依赖于通过激励产生的热透镜的尺寸的情况下形成具有小的往返损耗的谐振器，因此可以平滑脉冲操作或CW操作的上升特性以获得高功率稳定的输出。
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4.发明授权Optical wavelength conversion element, wavelength conversion laser device, and image display device 有权光波长转换元件，波长转换激光器件和图像显示器件公开(公告)号：US08705165B2
公开(公告)日：2014-04-22
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
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。
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公开(公告)号：US08705586B2
公开(公告)日：2014-04-22
申请号：US12675125
申请日：2007-08-30
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。
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公开(公告)号：US08094690B2
公开(公告)日：2012-01-10
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：US20100303112A1
公开(公告)日：2010-12-02
申请号：US12675447
申请日：2007-08-30
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：US20130121355A1
公开(公告)日：2013-05-16
申请号：US13810750
申请日：2010-12-21
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。
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公开(公告)号：US20100189151A1
公开(公告)日：2010-07-29
申请号：US12669966
申请日：2007-07-27
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：US20100303120A1
公开(公告)日：2010-12-02
申请号：US12675125
申请日：2007-08-30
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。
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