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    Polarization coupling device and optical modulation device
    4.
    发明授权
    Polarization coupling device and optical modulation device 有权

    公开(公告)号：US10578885B2

    公开(公告)日：2020-03-03

    申请号：US15868332

    申请日：2018-01-11

    Applicant: Fujitsu Optical Components Limited

    Inventor： Seimi Sasaki ,  Hiroshi Kato ,  Kohei Shibata ,  Takehito Tanaka

    IPC: G02B5/30 ,  G02B27/28 ,  G02B6/27 ,  G02B6/28 ,  G02B6/26

    Abstract: A polarization coupling device includes a polarization combining element. The polarization combining element includes a polarization rotating unit that rotates a polarization direction of a first polarized wave incident on the polarization combining element, and a polarization combining unit that combines the first polarized wave with the polarization direction rotated by the polarization rotating unit and a second polarized wave incident on the polarization combining element with each other, and the polarization rotating unit and the polarization combining unit are integrated with each other. Due to this configuration, the polarization coupling device has an effect where downscaling of the device can be advanced.

    OPTICAL MODULATOR MODULE
    5.
    发明申请
    OPTICAL MODULATOR MODULE 有权
    光学调制器模块

    公开(公告)号：US20160349457A1

    公开(公告)日：2016-12-01

    申请号：US15085283

    申请日：2016-03-30

    Applicant: Fujitsu Optical Components Limited

    Inventor： Hiroshi KATO ,  Shinji Maruyama ,  Kohei Shibata ,  Seimi Sasaki ,  Teruhiro Kubo ,  Takehito Tanaka

    IPC: G02B6/32 ,  G02B6/122 ,  G02B6/30 ,  G02F1/025 ,  G02B6/27

    CPC classification number: G02B6/32 ,  G02B6/1228 ,  G02B6/2706 ,  G02B6/30 ,  G02F1/025

    Abstract: An optical modulator module includes: a semiconductor modulator that includes a plurality of output waveguides; a first cylindrical lens that has a longitudinal direction in a direction in which the plurality of output waveguides are aligned, and through which lights output from the plurality of output waveguides penetrate; and a plurality of second cylindrical lenses each having a longitudinal direction that intersects with the longitudinal direction of the first cylindrical lens and allowing a corresponding light of the lights output from the plurality of output waveguides to penetrate therethrough.

    Abstract translation: 光调制器模块包括：半导体调制器，包括多个输出波导; 第一柱面透镜，其沿着所述多个输出波导对准的方向具有纵向方向，并且从所述多个输出波导输出的光穿过其中; 以及多个第二柱面透镜，每个具有与第一柱面透镜的纵向方向相交的纵向方向，并且允许从多个输出波导输出的光的相应光穿透其中。

    OPTICAL MODULATOR
    8.
    发明申请
    OPTICAL MODULATOR 审中-公开

    公开(公告)号：US20170146886A1

    公开(公告)日：2017-05-25

    申请号：US15416719

    申请日：2017-01-26

    Applicant: FURUKAWA ELECTRIC CO., LTD. ,  FUJITSU OPTICAL COMPONENTS LIMITED

    Inventor： Yusuke SAITO ,  Takehito Tanaka

    IPC: G02F1/225 ,  G02F1/017

    CPC classification number: G02F1/2255 ,  G02B6/00 ,  G02B6/12 ,  G02B6/125 ,  G02F1/017 ,  G02F1/01708 ,  G02F1/2257 ,  G02F2001/0157 ,  G02F2001/212 ,  G02F2201/12 ,  G02F2203/70

    Abstract: The present invention provides an optical modulator, which can be reduced in size with size reduction of an optical waveguide and electric wiring as compared to a conventional optical modulator. An optical modulator according to an embodiment includes a substrate; an optical waveguide provided on the substrate and configured to guide light; a modulation unit formed of part of the optical waveguide and configured to modulate the light; and electric wires provided on the substrate and configured to supply a high-frequency electric signal to the modulation unit. One end portion and another end portion of the optical waveguide are provided on a first end surface, one end portion of the electric wiring is provided along the first end surface, another end portion of the electric wiring is provided along a second end surface being different from the first end surface.

    Optical module and optical transmitter
    9.
    发明授权
    Optical module and optical transmitter 有权
    光模块和光发射机

    公开(公告)号：US09229292B2

    公开(公告)日：2016-01-05

    申请号：US14445388

    申请日：2014-07-29

    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

    Inventor： Masaki Sugiyama ,  Seimi Sasaki ,  Takehito Tanaka

    IPC: H04B10/00 ,  G02F1/225 ,  H04B10/50 ,  H04B10/532 ,  G02F1/21

    CPC classification number: G02F1/225 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/16 ,  H04B10/501 ,  H04B10/532

    Abstract: An optical module includes a waveguide substrate including an optical waveguide and electrodes that apply electronic signals to the optical waveguide; a relay substrate disposed adjacent to the waveguide substrate; a terminal substrate disposed adjacent to the waveguide substrate and opposite to the relay substrate across the waveguide substrate; and a carrier substrate on which the waveguide substrate, the relay substrate, and the terminal substrate are mounted. The electrodes have a first interconnect unit from the relay substrate to the terminal substrate via the waveguide substrate and second interconnect units from the first interconnect unit and branching on the terminal substrate. Among the second interconnect units, a first interconnect branch includes a capacitor and a terminal resistor; and a second interconnect branch is connected to an interconnect of the carrier substrate via a bias resistor, passes under the waveguide substrate to a DC electrode for bias-adjusting on the relay substrate.

    Abstract translation: 光学模块包括：包括光波导的波导基板和向光波导施加电子信号的电极; 邻近所述波导基板设置的继电器基板; 端子基板，其布置成与所述波导基板相邻并且跨越所述波导基板与所述中继基板相对; 以及其上安装有波导基板，中继基板和端子基板的载体基板。 电极具有经由波导基板从中继基板到端子基板的第一互连单元，以及来自第一互连单元的第二互连单元并在端子基板上分支。 在第二互连单元中，第一互连支路包括电容器和端子电阻器; 并且第二互连支路经由偏置电阻器连接到载体衬底的互连件，在波导衬底下方通过直流电极以在继电器衬底上进行偏置调节。

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