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    Plane waveguide type laser and display device
    7.
    发明授权
    Plane waveguide type laser and display device 有权
    平面波导型激光和显示装置

    公开(公告)号：US08743916B2

    公开(公告)日：2014-06-03

    申请号：US13141910

    申请日：2009-02-05

    申请人： Shuhei Yamamoto ,  Yosuke Akino ,  Takayuki Yanagisawa ,  Yoshihito Hirano

    发明人： Shuhei Yamamoto ,  Yosuke Akino ,  Takayuki Yanagisawa ,  Yoshihito Hirano

    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 。

    Solid-state laser element
    8.
    发明授权
    Solid-state laser element 有权
    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。

    Wavelength converting element and wavelength converting laser apparatus
    9.
    发明授权
    Wavelength converting element and wavelength converting laser apparatus 有权
    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。

    OPTICAL WAVELENGTH CONVERSION ELEMENT, WAVELENGTH CONVERSION LASER DEVICE, AND IMAGE DISPLAY DEVICE
    10.
    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

    IPC分类号： G02F1/35 ,  G02B6/10 ,  H01S3/10

    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。