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    Directional coupler
    1.
    发明授权
    Directional coupler 有权
    定向耦合器

    公开(公告)号：US06363189B1

    公开(公告)日：2002-03-26

    申请号：US09520113

    申请日：2000-03-07

    申请人： Makoto Minakata ,  Jungo Kondo ,  Tatsuo Kawaguchi ,  Minoru Imaeda

    发明人： Makoto Minakata ,  Jungo Kondo ,  Tatsuo Kawaguchi ,  Minoru Imaeda

    IPC分类号： G02B626

    CPC分类号： G02F1/3132 ,  G02F1/0316 ,  G02F1/3134 ,  G02F1/3558 ,  G02F2202/07

    摘要： A directional coupler including a substrate having a length and containing a material that exhibits electrooptic properties, the substrate being divided into a plurality of reversed polarization domains along a direction of length. At least two optical waveguides are formed in the substrate in the direction of length thereof and substantially parallel to a main surface thereof. An electrode is disposed above a portion of each optical waveguide for modulating light waves propagating through the waveguides, respectively, the electrode being divided equally by at least a portion of a boundary surface between the plurality of reversed polarization domains.

    摘要翻译： 一种定向耦合器，包括具有长度并包含具有电光特性的材料的衬底，所述衬底沿着长度方向被分成多个反向极化畴。 至少两个光波导在基板的长度方向上形成并基本平行于其主表面。 电极设置在每个光波导的一部分上方，用于分别调制通过波导传播的光波，该电极被多个反向极化畴之间的边界面的至少一部分平均分配。

    Optical waveguide elements and a process for producing the same
    2.
    发明授权
    Optical waveguide elements and a process for producing the same 失效
    光波导元件及其制造方法

    公开(公告)号：US06404968B1

    公开(公告)日：2002-06-11

    申请号：US09519701

    申请日：2000-03-07

    申请人： Yukinobu Nakabayashi ,  Mitsuhiro Kitamura ,  Tatsuo Kawaguchi ,  Jungo Kondo ,  Minoru Imaeda

    发明人： Yukinobu Nakabayashi ,  Mitsuhiro Kitamura ,  Tatsuo Kawaguchi ,  Jungo Kondo ,  Minoru Imaeda

    IPC分类号： G02B610

    CPC分类号： G02B6/1342

    摘要： A process for producing an optical waveguide element by thermally diffusing a metal element or a metallic compound into a substrate having a photoelectric effect, includes the steps of: forming a waveguide pattern on the substrate, the waveguide pattern includes a metal element or metallic compound; forming a film on a main plane of the substrate that covers the entire waveguide pattern, the film having an electro-optic effect; and effecting the thermal diffusion of the metallic element or the metallic compound.

    摘要翻译： 通过将金属元素或金属化合物热扩散到具有光电效应的基板中来制造光波导元件的方法包括以下步骤：在基板上形成波导图案，所述波导图案包括金属元素或金属化合物; 在覆盖整个波导图案的基板的主平面上形成膜，该膜具有电光效应; 并且实现金属元素或金属化合物的热扩散。

    Optical waveguide substrate, optical waveguide device, second harmonic generation device, and process of producing optical waveguide substrate
    3.
    发明授权
    Optical waveguide substrate, optical waveguide device, second harmonic generation device, and process of producing optical waveguide substrate 失效
    光波导基板，光波导装置，二次谐波发生装置以及光波导基板的制造工序

    公开(公告)号：US5991067A

    公开(公告)日：1999-11-23

    申请号：US922565

    申请日：1997-09-03

    申请人： Makoto Minakata ,  Tatsuo Kawaguchi ,  Minoru Imaeda

    发明人： Makoto Minakata ,  Tatsuo Kawaguchi ,  Minoru Imaeda

    IPC分类号： G02B6/12 ,  G02B6/122 ,  G02F1/035 ,  G02F1/37 ,  G02F1/377

    CPC分类号： G02F1/035 ,  G02B6/122 ,  G02F1/3775 ,  G02B2006/12097

    摘要： An optical waveguide substrate having a substrate made of ferroelectric optical single crystal and a ridge portion projected from a main plane of the substrate, has a construction such that the ridge portion has a base portion made of ferroelectric optical single crystal and an optical waveguide formed on the base portion. The optical waveguide substrate is formed by forming at least one optical waveguide layer on a main plane of a substrate made of ferroelectric optical single crystal, and mechanically working main planes of the optical waveguide layer and the substrate to form a ridge portion projected from the main plane of the substrate. The optical waveguide substrate can reduce a light transmission loss, increase an extinction ratio, and improve an electric field applying efficiency.

    摘要翻译： 具有由铁电光学单晶构成的基板和从基板的主面突出的脊部的光波导基板具有这样的结构，使得该脊部具有由铁电光学单晶构成的基部和形成在 基部。 光波导基板通过在由铁电光学单晶制成的基板的主平面上形成至少一个光波导层，以及在光波导层和基板的机械加工主平面上形成从主体突出的脊部 基板的平面。 光波导基板可以减少光传输损耗，提高消光比，提高电场施加效率。

    Optical single crystal film process for producing the same and optical element comprising the same
    7.
    发明授权
    Optical single crystal film process for producing the same and optical element comprising the same 失效
    用于制造其的光学单晶膜工艺和包括该光学单晶膜的光学元件

    公开(公告)号：US06203728B1

    公开(公告)日：2001-03-20

    申请号：US09495578

    申请日：2000-02-01

    申请人： Tatsuo Kawaguchi ,  Minoru Imaeda

    发明人： Tatsuo Kawaguchi ,  Minoru Imaeda

    IPC分类号： G02B520

    CPC分类号： C30B29/30 ,  C30B19/02 ,  C30B33/02 ,  Y10S117/906 ,  Y10S117/918

    摘要： In producing an optical single crystal epitaxial film from a melt containing a transition metal on a single crystal substrate by a liquid phase epitaxial method, this process contains the steps of: annealing the film at a predetermined temperature in an ozonic atmosphere; and temperature-increasing and -decreasing to and from the predetermined temperature, wherein at least one of temperature-increasing and -decreasing steps, the film is exposed to a substantially ozone-free atmosphere.

    摘要翻译： 在通过液相外延法在单晶衬底上由含有过渡金属的熔体制造光学单晶外延膜的过程中，包括以下步骤：在臭氧气氛中以预定温度对膜进行退火; 并且在预定温度下升温和降温，其中升温和降温步骤中的至少一个，使该膜暴露于基本上无臭氧的气氛中。

    Process and an apparatus for producing a composite oxide single crystal body
    8.
    发明授权
    Process and an apparatus for producing a composite oxide single crystal body 失效
    复合氧化物单晶体的制造方法和装置

    公开(公告)号：US6074477A

    公开(公告)日：2000-06-13

    申请号：US41479

    申请日：1998-03-12

    申请人： Minoru Imaeda ,  Tsuguo Fukuda ,  Kiyoshi Shimamura ,  Tatsuo Kawaguchi

    发明人： Minoru Imaeda ,  Tsuguo Fukuda ,  Kiyoshi Shimamura ,  Tatsuo Kawaguchi

    IPC分类号： G02B6/00 ,  C30B15/00 ,  C30B15/08 ,  C30B29/28 ,  C30B29/30 ,  G02B6/02 ,  G02F1/35 ,  G02F1/355 ,  H01S3/06 ,  H01S3/16 ,  C30B15/34

    CPC分类号： C30B15/08 ,  C30B15/00 ,  C30B29/28 ,  C30B29/30 ,  C30B29/32 ,  G02B6/02 ,  Y10S117/91 ,  Y10T117/1032

    摘要： A process is disclosed for producing an integrated composite oxide single crystal body composed of a core portion made of an oxide single crystal and a clad portion integrated with the core portion and made of another oxide single crystal having a composition different from that of the oxide single crystal constituting the core portion, the process comprising the steps of: (1) preparing a first melt in a first crucible by melting a first material for a first oxide single crystal to constitute the core portion inside the first crucible, (2) preparing a second melt inside a second crucible by melting a second material for a second oxide single crystal to constitute the clad portion inside the second crucible, (3) contacting a seed crystal to the first and second melts, (4) pulling down the first melt through a pull-out opening of the first crucible, (5) pulling down the second melt through a pull-out opening of the second crucible and contacting the pulled-down second melt with a pulled-down portion of the first melt, and (6) integrally pulling down the first and second melts.

    摘要翻译： 公开了一种制造由由氧化物单晶构成的芯部和与芯部形成一体的包层部组成的集成复合氧化物单晶体的方法，该复合氧化物单晶体由具有不同于氧化物单体的组成的另一氧化物单晶制成 构成芯部的晶体，该方法包括以下步骤：（1）通过熔化第一氧化物单晶的第一材料在第一坩埚中制备第一熔体以构成第一坩埚内的芯部，（2）制备 通过熔化用于第二氧化物单晶的第二材料以在第二坩埚内部构成包层部分，在第二坩埚内熔化第二坩埚，（3）将晶种接触第一和第二熔体，（4）将第一熔体通过 第一坩埚的拉出开口，（5）通过第二坩埚的拉出口拉下第二熔体并将下拉的第二熔体与拉出的第二熔体接触， 第一熔体的下降部分，以及（6）一体地拉下第一和第二熔体。