利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

220 条记录 (耗时 0.032 秒)

    Optical apparatus and method for producing the same
    12.
    发明授权
    Optical apparatus and method for producing the same 失效
    光学装置及其制造方法

    公开(公告)号：US07133428B2

    公开(公告)日：2006-11-07

    申请号：US10461620

    申请日：2003-06-13

    申请人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Kiminori Mizuuchi ,  Kenichi Nishiuchi

    发明人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Makoto Kato ,  Kiminori Mizuuchi ,  Kenichi Nishiuchi

    IPC分类号： H01S3/00

    CPC分类号： H01S5/0687 ,  G02B6/42 ,  G02B6/4201 ,  G02B6/4213 ,  G02B6/4215 ,  G02B6/4224 ,  G02B6/4257 ,  G02B6/4271 ,  G02B6/4272 ,  G02F1/37 ,  H01S5/0092 ,  H01S5/02252 ,  H01S5/02476 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/06837

    摘要： A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip and the substrate. In an oscillation wavelength stabilizing apparatus for a light source, the light source is a semiconductor laser which includes: an active region for providing gain; and a distributed Bragg reflection (DBR) region for controlling an oscillation wavelength. The apparatus includes a control section which monotonously varies, in a first direction, a DBR current to be input to the DBR region while detecting the oscillation wavelength of an output light of the semiconductor laser so as to detect a DBR current value Io corresponding to a predetermined wavelength value, and then monotonously varies the DBR current in a second direction which is opposite the first direction beyond the detected value Io, and then monotonously varies the DBR current in the first direction again to set the DBR current at the detected value Io, thereby fixing the oscillation wavelength of the semiconductor laser chip at the predetermined wavelength value.

    摘要翻译： 一种发光装置，包括：底座; 安装在底座上的半导体激光芯片; 基板，其安装在所述基座上并且包括光波导; 以及设置在半导体激光芯片和基板之间的具有预定厚度的物质。 在用于光源的振荡波长稳定装置中，光源是半导体激光器，其包括：用于提供增益的有源区; 以及用于控制振荡波长的分布式布拉格反射（DBR）区域。 该装置包括控制部分，其在检测半导体激光器的输出光的振荡波长的同时，沿第一方向在DBR区域中单向变化DBR电流，以便检测DBR电流值I < o ，然后将DBR电流在与第一方向相反的第二方向上单调地改变超过检测值I 0，然后单调地改变DBR电流 在第一方向上将DBR电流设定在检测值I ，从而将半导体激光器芯片的振荡波长固定在预定波长值。

    Short-wavelength light generating apparatus
    15.
    发明授权
    Short-wavelength light generating apparatus 失效
    短波长发光装置

    公开(公告)号：US5301059A

    公开(公告)日：1994-04-05

    申请号：US20335

    申请日：1993-02-19

    申请人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Makoto Kato ,  Fumihiro Sogawa

    发明人： Yasuo Kitaoka ,  Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Makoto Kato ,  Fumihiro Sogawa

    IPC分类号： H01S3/0941 ,  H01S3/109 ,  H01S5/06 ,  H01S5/10 ,  H01S5/14 ,  G02F1/35

    CPC分类号： H01S5/141 ,  H01S3/08009 ,  H01S3/109 ,  H01S5/005 ,  H01S5/0092 ,  H01S5/143

    摘要： A short-wavelength light generating apparatus comprising a pumping semiconductor laser and an intra-cavity solid state laser, the intra-cavity solid state laser is excited in response to a laser light beam from the semiconductor laser to generate a short-wavelength light beam to an external. Also included in the apparatus is an external grating mirror having on its one surface a reflection type diffraction grating and placed between the semiconductor laser and the intra-cavity solid state laser. The external grating mirror reflects the laser light beam from the semiconductor laser to feedback a portion of the laser light beam to said semiconductor laser so that an oscillated wavelength of the semiconductor laser becomes within a wavelength acceptance of the intra-cavity solid state laser. Further, the external grating mirror supplies a portion of the laser light beam from the semiconductor laser to the intra-cavity solid state laser. This arrangement can output a stable harmonic wave with a high efficiency.

    摘要翻译： 一种包括泵浦半导体激光器和腔内固体激光器的短波长发光装置，响应于来自半导体激光器的激光束激发腔内固态激光器，以产生短波长光束 外部的。 该装置中还包括外置光栅镜，其一面具有反射型衍射光栅，并设置在半导体激光器和腔内固态激光器之间。 外部光栅镜反射来自半导体激光器的激光束，以将激光束的一部分反射到所述半导体激光器，使得半导体激光器的振荡波长变得在腔内固态激光器的波长接受范围内。 此外，外部光栅镜将激光束的一部分从半导体激光器提供给腔内固态激光器。 这种布置可以以高效率输出稳定的谐波。

    Optical device, laser beam source, laser apparatus and method of producing optical device
    16.
    发明授权
    Optical device, laser beam source, laser apparatus and method of producing optical device 有权
    光学装置，激光束源，激光装置及其制造方法

    公开(公告)号：US07295583B2

    公开(公告)日：2007-11-13

    申请号：US10712126

    申请日：2003-11-13

    申请人： Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Yasuo Kitaoka ,  Makoto Kato

    发明人： Kazuhisa Yamamoto ,  Kiminori Mizuuchi ,  Yasuo Kitaoka ,  Makoto Kato

    IPC分类号： H01S3/10

    CPC分类号： G02F1/37 ,  G02F1/3558 ,  G02F1/3775 ,  G02F2203/60 ,  H01S3/09415 ,  H01S3/109 ,  H01S3/23 ,  H01S5/0092 ,  H01S5/02 ,  H01S5/40 ,  H01S5/4087

    摘要： After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a nonlinear optical effect, a highly reliable element is provided.

    摘要翻译： 在LiTaO 3衬底1中形成畴反转层3之后，形成光波导。 通过对由此形成的光波长转换元件进行低温退火，形成稳定的质子交换层8，在高温退火时产生的折射率的升高降低，从而提供稳定的光波长转换元件。 因此，相位匹配波长变得恒定，并且消除了谐波输出的变化。 因此，对于利用非线性光学效应的光波长转换元件，提供了高度可靠的元件。

    Optical pickup and optical information recording/reproducing device
    17.
    发明授权
    Optical pickup and optical information recording/reproducing device 失效
    光学拾取和光学信息记录/再现装置

    公开(公告)号：US07154837B2

    公开(公告)日：2006-12-26

    申请号：US09870095

    申请日：2001-05-30

    申请人： Ken'ichi Kasazumi ,  Yasuo Kitaoka ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

    发明人： Ken'ichi Kasazumi ,  Yasuo Kitaoka ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

    IPC分类号： G11B7/135

    CPC分类号： B82Y10/00 ,  G02F2203/18 ,  G11B7/1369 ,  G11B7/1381

    摘要： An optical pickup and an optical information recording/reproducing device are provided, each of which is capable of forming a super-resolution spot to conduct micro-mark recording, and does not undergo signal degradation due to an increased sidelobe in a reproducing operation. A variable phase filter having three regions to produce a phase difference in a radial direction is used, to provide a phase difference of π between the center region and the side regions in a recording operation, so that a super-resolution spot is formed on a recording layer of the optical disk. In a reproducing operation, a phase difference is nullified between the regions of the variable phase filter, so that a normal light spot at a diffraction limit having a smaller sidelobe is formed. The variable phase filter can be formed with a homogeneous-alignment liquid crystal element.

    摘要翻译： 提供了一种光学拾取器和光学信息记录/再现装置，每个光学拾取器和光学信息记录/再现装置能够形成超分辨率点以进行微标记记录，并且由于再现操作中的旁瓣增加而不会发生信号劣化。 使用具有在径向上产生相位差的三个区域的可变相位滤波器，以在记录操作中提供中心区域和侧面区域之间的pi的相位差，使得在 记录层的光盘。 在再现操作中，可变相位滤波器的区域之间的相位差无效，从而形成具有较小旁瓣的衍射极限处的正常光斑。 可变相位滤波器可以由均匀取向的液晶元件形成。

    Optical waveguide device and light source and optical apparatus using the same
    18.
    发明授权
    Optical waveguide device and light source and optical apparatus using the same 有权
    光波导器件和光源及其使用的光学器件

    公开(公告)号：US06829080B2

    公开(公告)日：2004-12-07

    申请号：US10123892

    申请日：2002-04-16

    申请人： Akihiro Morikawa ,  Ken'ichi Kasazumi ,  Yasuo Kitaoka ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

    发明人： Akihiro Morikawa ,  Ken'ichi Kasazumi ,  Yasuo Kitaoka ,  Kiminori Mizuuchi ,  Kazuhisa Yamamoto

    IPC分类号： G02F202

    CPC分类号： G11B7/126 ,  G02B6/122 ,  G02B2006/12126 ,  G02F1/377 ,  H01S5/0092 ,  H01S5/02248

    摘要： An optical waveguide device is provided that can reduce external interference noise. The optical waveguide device includes a substrate, an optical waveguide formed on the substrate, a periodic polarization inversion region formed on the optical waveguide, and an optical thin film formed in a portion of the optical waveguide. The optical waveguide (refractive index: N2) and the optical thin film (refractive index: N1) differ in refractive index dispersion, and the magnitude relationship between the refractive indexes is reversed depending on wavelength. The relationship N1>N2 is established for light having a shorter wavelength, while the relationship N2>N1 is established for light having a longer wavelength.

    摘要翻译： 提供了可以减少外部干扰噪声的光波导装置。 光波导器件包括衬底，形成在衬底上的光波导，形成在光波导上的周期性偏振反转区域和形成在光波导的一部分中的光学薄膜。 光波导（折射率：N2）和光学薄膜（折射率：N1）的折射率色散不同，折射率之间的大小关系根据波长而反转。 对于具有较短波长的光建立关系N1> N2，而对于具有较长波长的光则建立关系N2> N1。

    Optical waveguide device and coherent light source and optical apparatus using the same
    19.
    发明授权
    Optical waveguide device and coherent light source and optical apparatus using the same 有权
    光波导器件和相干光源及使用其的光学器件

    公开(公告)号：US06785457B2

    公开(公告)日：2004-08-31

    申请号：US10211881

    申请日：2002-08-01

    申请人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Ken'ichi Kasazumi ,  Yasuo Kitaoka

    发明人： Kiminori Mizuuchi ,  Kazuhisa Yamamoto ,  Ken'ichi Kasazumi ,  Yasuo Kitaoka

    IPC分类号： G02F202

    CPC分类号： G02B6/125 ,  G02B6/42 ,  G02B6/4207 ,  G02B2006/12119 ,  G02F1/3775 ,  G11B7/125 ,  H01S5/026

    摘要： The present invention aims to simplify a mass production process of an optical waveguide device and to reduce cost as well as noise. The optical waveguide device includes an optical waveguide whose entrance end face and exit end face are substantially parallel to each other. A SHG device is mass-produced by optically polishing an optical material substrate with a large area and then cutting the substrate. This method can mass-produce the optical waveguide devices having a uniform device length. The angle between the exit end face of the optical waveguide and the direction of an optical axis of the optical waveguide at the exit end face is not 90°, thereby reducing return light from the exit end face.

    摘要翻译： 本发明旨在简化光波导器件的批量生产工艺，并降低成本和噪声。 光波导装置包括入射端面和出射端面基本上彼此平行的光波导。 通过以大面积光学研磨光学材料基板然后切割基板来批量生产SHG器件。 该方法可以批量生产具有均匀器件长度的光波导器件。 光波导的出射端面与出射端面的光波导的光轴方向之间的角度不是90°，从而减少了从出射端面返回的光。