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    Optical device having stress layer inducing refraction index variation in a partial region of a substrate by photoelastic effect
    1.
    发明授权
    Optical device having stress layer inducing refraction index variation in a partial region of a substrate by photoelastic effect 有权
    具有应力层的光学器件通过光弹性效应在衬底的部分区域中引起折射率变化

    公开(公告)号：US07729568B2

    公开(公告)日：2010-06-01

    申请号：US12187606

    申请日：2008-08-07

    申请人： Takashi Shiraishi ,  Kazuhiro Tanaka ,  Tetsuya Miyatake

    发明人： Takashi Shiraishi ,  Kazuhiro Tanaka ,  Tetsuya Miyatake

    IPC分类号： G02B6/00 ,  G02B6/10

    CPC分类号： G02F1/0134 ,  G02B6/122 ,  G02B6/132 ,  G02B2006/1204 ,  G02B2006/12078 ,  G02F1/05

    摘要： The application relates to an optical device for enhancing the stress to be generated in a substrate in comparison with a conventional technique. To this end, the optical device includes a substrate having a photoelastic effect, a first stress layer formed on a first face of the substrate and having a pattern for generating stress which induces refraction index variation by the photoelastic effect in a partial region in the substrate, and a second stress layer formed on a second face which is a reverse face to the first face of the substrate and configured to generate stress for restoring the shape from the deformation caused by the stress generated in the substrate by the first stress layer in the substrate.

    摘要翻译： 本申请涉及一种用于增强与常规技术相比在衬底中产生的应力的光学装置。 为此，光学器件包括具有光弹性效应的衬底，形成在衬底的第一面上的第一应力层，并且具有用于产生应力的图案，该图案通过衬底中的部分区域中的光弹性效应引起折射率变化 以及第二应力层，所述第二应力层形成在与所述基板的所述第一面相反的第二面上，并且被配置为产生由所述基板中由所述第一应力层在所述基板中产生的应力引起的形状恢复形状的应力 基质。

    Optical modulation device and manufacturing method thereof
    3.
    发明申请
    Optical modulation device and manufacturing method thereof 有权
    光调制装置及其制造方法

    公开(公告)号：US20090324158A1

    公开(公告)日：2009-12-31

    申请号：US12385001

    申请日：2009-03-27

    申请人： Takashi Shiraishi ,  Tetsuya Miyatake ,  Tetsu Hasegawa

    发明人： Takashi Shiraishi ,  Tetsuya Miyatake ,  Tetsu Hasegawa

    IPC分类号： G02F1/035

    CPC分类号： G02B6/13 ,  G02B6/136 ,  G02B2006/1204 ,  G02F1/0305 ,  G02F1/0356 ,  G02F1/2255

    摘要： An optical modulation device includes: a crystal substrate having an electro-optic effect; an optical waveguide formed in the crystal substrate; an electrode formed on the crystal substrate, to apply an electric field to the optical waveguide; and a buried layer of low dielectric constant buried to avoid the optical waveguide, in at least one portion of a lower region of the electrode inside the crystal substrate, which is spaced from both of a front surface of the crystal substrate on which the electrode is formed and a rear surface thereof opposed to the front surface.

    摘要翻译： 光调制装置包括：具有电光效应的晶体基板; 形成在晶体基板中的光波导; 形成在所述晶体基板上的电极，用于向所述光波导施加电场; 以及在晶体基板内部的电极的下部区域的至少一部分中埋设有低介电常数的掩埋层，以避免光波导与电极的晶体基板的前表面间隔开 形成的后表面与前表面相对。

    Optical modulation device utilizing electro-optic effect
    4.
    发明授权
    Optical modulation device utilizing electro-optic effect 有权
    利用电光效应的光调制装置

    公开(公告)号：US08135241B2

    公开(公告)日：2012-03-13

    申请号：US12385001

    申请日：2009-03-27

    申请人： Takashi Shiraishi ,  Tetsuya Miyatake ,  Tetsu Hasegawa

    发明人： Takashi Shiraishi ,  Tetsuya Miyatake ,  Tetsu Hasegawa

    IPC分类号： G02F1/035 ,  G02B6/10

    CPC分类号： G02B6/13 ,  G02B6/136 ,  G02B2006/1204 ,  G02F1/0305 ,  G02F1/0356 ,  G02F1/2255

    摘要： An optical modulation device includes: a crystal substrate having an electro-optic effect; an optical waveguide formed in the crystal substrate; an electrode formed on the crystal substrate, to apply an electric field to the optical waveguide; and a buried layer of low dielectric constant buried to avoid the optical waveguide, in at least one portion of a lower region of the electrode inside the crystal substrate, which is spaced from both of a front surface of the crystal substrate on which the electrode is formed and a rear surface thereof opposed to the front surface.

    摘要翻译： 光调制装置包括：具有电光效应的晶体基板; 形成在晶体基板中的光波导; 形成在所述晶体基板上的电极，用于向所述光波导施加电场; 以及在晶体基板内部的电极的下部区域的至少一部分中埋设有低介电常数的掩埋层，以避免光波导与晶体基板的其上的电极的前表面间隔开 形成的后表面与前表面相对。

    Optical device
    6.
    发明授权
    Optical device 有权
    光学装置

    公开(公告)号：US07627200B2

    公开(公告)日：2009-12-01

    申请号：US11554924

    申请日：2006-10-31

    申请人： Takashi Shiraishi ,  Tetsu Hasegawa ,  Masaharu Doi ,  Kazuhiro Tanaka

    发明人： Takashi Shiraishi ,  Tetsu Hasegawa ,  Masaharu Doi ,  Kazuhiro Tanaka

    IPC分类号： G02F1/035

    CPC分类号： G02F1/0356

    摘要： Optical waveguides (A) and (B) of a Mach-Zehnder modulator is normally formed on a −Z plane as an electric polarization non-inversion area. However, when the signal electrode 11 and the ground electrode 10 are provided asymmetrically on two waveguides, chirp occurs in output light, which is undesired. Therefore, these electrodes are provided symmetrically about the two waveguides. To effectively perform optical modulation, a part of the substrate in which an optical waveguide exists is to be electric polarization-inverted. As a result of the electric polarization inversion the optical waveguide is on the +Z plane. However, electric charge is accumulated on the +Z plane from unstable spontaneous electric polarization of an electric polarization inversion area, and has undesired influence on the performance of the optical modulator. Therefore, a conductive amorphous layer is formed on the surface of the electric polarization inversion area.

    摘要翻译： 马赫 - 曾德调制器的光波导（A）和（B）通常在-Z平面上形成为电极化反转区域。 然而，当信号电极11和接地电极10不对称地设置在两个波导上时，在输出光中发生啁啾，这是不期望的。 因此，这些电极围绕两个波导对称设置。 为了有效地进行光调制，存在光波导的基板的一部分被电极化反转。 作为电极化反转的结果，光波导在+ Z平面上。 然而，电荷从电极化反转区域的不稳定的自发电极化在+ Z平面上积累，并且对光调制器的性能具有不期望的影响。 因此，在电极化反转区域的表面上形成导电非晶层。

    Optical device and method of manufacturing optical device including transparent member between optical waveguide core and optical waveguide insertion hole
    8.
    发明授权
    Optical device and method of manufacturing optical device including transparent member between optical waveguide core and optical waveguide insertion hole 有权
    光学元件及其制造方法，其包括光波导芯和光波导插入孔之间的透明构件

    公开(公告)号：US08876401B2

    公开(公告)日：2014-11-04

    申请号：US13448693

    申请日：2012-04-17

    申请人： Takashi Shiraishi

    发明人： Takashi Shiraishi

    IPC分类号： G02B6/00 ,  G02B6/38 ,  G02B6/32

    CPC分类号： G02B6/3861 ,  G02B6/325 ,  G02B6/3885 ,  Y10T29/49826 ,  Y10T156/1052

    摘要： An optical device includes a connector configured to provide a hole, an optical waveguide provided with a core and a clad equipped on an outer periphery of the core and configured to have a refractive index smaller than a refractive index of the core, a first transparent member configured to make contact with a core end face of the optical waveguide, and a second transparent member configured to make contact with a hole bottom of the optical waveguide insertion hole, wherein a contact area of the second transparent member and the hole bottom of the optical waveguide insertion hole is larger than a contact area of the core and the first transparent member.

    摘要翻译： 一种光学装置，包括：构造成提供孔的连接器，设置有芯的光波导和设置在所述芯的外周上并且被配置为具有小于所述芯的折射率的折射率的折射率的第一透明构件 被配置为与所述光波导的芯端面接触;以及第二透明构件，其被配置为与所述光波导插入孔的孔底接触，其中所述第二透明构件与所述光学波导孔的孔底的接触面积 波导插入孔大于芯体和第一透明部件的接触面积。