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    OPTICAL DEVICE AND FABRICATION METHOD OF OPTICAL DEVICE
    3.
    发明申请
    OPTICAL DEVICE AND FABRICATION METHOD OF OPTICAL DEVICE 有权
    光学装置的光学装置和制造方法

    公开(公告)号：US20150016771A1

    公开(公告)日：2015-01-15

    申请号：US14329026

    申请日：2014-07-11

    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

    Inventor： Shinji MARUYAMA ,  Yoshihiko YOSHIDA ,  Tomoyuki ITO ,  Yoshihiro TAKAHASHI ,  Yoshinobu KUBOTA

    IPC: G02B6/12

    CPC classification number: G02B6/42 ,  G02B6/4214 ,  G02B2006/12166 ,  G02F2201/58 ,  H04B10/50 ,  H04B10/60 ,  Y10T29/49128

    Abstract: An optical device includes a substrate having an electrooptical effect, and including an optical waveguide that guides light and a reflection groove having a bottom face that reflects light output from the optical waveguide; and a light-receiving element positioned above the reflection groove and fixed to the substrate. The light output from the optical waveguide into the reflection groove is reflected by the bottom face of the reflection groove while traveling through a space inside the reflection groove and is incident to the light-receiving element.

    Abstract translation: 光学器件包括具有电光效应的衬底，并且包括引导光的光波导和具有反射从光波导输出的光的底面的反射槽; 以及位于反射槽上方并固定于基板的光接收元件。 从光波导输出到反射槽的光在反射槽内反射并反射到反射槽的底面并入射到光接收元件。

    OPTICAL MODULATOR THAT INCLUDES OPTICAL WAVEGUIDE FORMED IN FERROELECTRIC SUBSTRATE
    6.
    发明申请
    OPTICAL MODULATOR THAT INCLUDES OPTICAL WAVEGUIDE FORMED IN FERROELECTRIC SUBSTRATE 审中-公开
    包括在光电基板中形成的光波导的光学调制器

    公开(公告)号：US20170017097A1

    公开(公告)日：2017-01-19

    申请号：US15279604

    申请日：2016-09-29

    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

    Inventor： Masaharu DOI ,  Yoshihiko YOSHIDA ,  Yoshinobu KUBOTA ,  Yoshitada KAWASHIMA

    IPC: G02F1/00 ,  G02F1/225

    CPC classification number: G02F1/0036 ,  G02F1/0316 ,  G02F1/0508 ,  G02F1/225 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2202/20 ,  G02F2202/22

    Abstract: An optical modulator includes: a ferroelectric substrate in which an input optical waveguide, first and second optical waveguides, and an output optical waveguide are formed; a first electrode formed in a vicinity of the first optical waveguide and to which a first DC voltage is applied; a second electrode formed in a vicinity of the second optical waveguide and to which a second DC voltage is applied; a third electrode electrically connected to the first electrode and formed on both sides of the second electrode; and a fourth electrode electrically connected to the second electrode and formed on both sides of the first electrode. A first gap between the first electrode and the fourth electrode is approximately the same as a second gap between the second electrode and the third electrode. A gap between the third electrode and the fourth electrode is 1-5 times greater than the first gap.

    Abstract translation: 光调制器包括：形成输入光波导，第一和第二光波导和输出光波导的铁电基板; 形成在第一光波导附近并施加第一直流电压的第一电极; 形成在所述第二光波导附近并且施加有第二DC电压的第二电极; 电连接到第一电极并形成在第二电极的两侧上的第三电极; 以及电连接到第二电极并形成在第一电极的两侧上的第四电极。 第一电极和第四电极之间的第一间隙与第二电极和第三电极之间的第二间隙大致相同。 第三电极和第四电极之间的间隙比第一间隙大1-5倍。

    OPTICAL DEVICE
    7.
    发明公开
    OPTICAL DEVICE 审中-公开

    公开(公告)号：US20230161184A1

    公开(公告)日：2023-05-25

    申请号：US17947657

    申请日：2022-09-19

    Applicant: FUJITSU OPTICAL COMPONENTS LIMITED

    Inventor： Shuntaro MAKINO ,  Teruo KURAHASHI ,  Yoshinobu KUBOTA ,  Yoshihiko YOSHIDA ,  Nobuaki MITAMURA ,  Takehito TANAKA

    IPC: G02F1/035

    CPC classification number: G02F1/035

    Abstract: An optical device includes a substrate, a first cladding layer that is laminated on one surface of the substrate, and a first optical waveguide that is formed in the first cladding layer at a side opposite to the substrate in the first cladding layer. The optical device further includes an electro-optic crystal layer that is laminated on a surface of the first cladding layer at a side opposite to the substrate, and a second optical waveguide that is formed of the electro-optic crystal layer on a surface of the electro-optic crystal layer at a side opposite to the first cladding layer. The optical device further includes a second cladding layer that is laminated on a surface of the electro-optic crystal layer at a side opposite to the first cladding layer.

    OPTICAL MODULATOR AND OPTICAL MODULE
    10.
    发明申请
    OPTICAL MODULATOR AND OPTICAL MODULE 审中-公开

    公开(公告)号：US20180031945A1

    公开(公告)日：2018-02-01

    申请号：US15650222

    申请日：2017-07-14

    Applicant: Fujitsu Optical Components Limited

    Inventor： Yasuhiro OHMORI ,  Yoshinobu KUBOTA ,  Masaharu DOI ,  Masaki SUGIYAMA

    IPC: G02F1/225 ,  G02F1/00 ,  G02F1/01 ,  H04B10/50

    CPC classification number: G02F1/2255 ,  G02F1/0027 ,  G02F1/0123 ,  G02F1/2257 ,  G02F2201/07 ,  G02F2203/21 ,  H04B10/50572

    Abstract: An optical modulator includes an optical modulator chip configured to optically modulate an optical signal using an electrical signal input thereto; and a relay substrate configured to relay and couple the electrical signal to the optical modulator chip. The optical modulator chip includes a signal electrode and a ground electrode for the electrical signal, formed along a waveguide for the optical signal. One end of the optical modulator chip is arranged to face the relay substrate. An electrode connection portion coupling the electrical signal to the relay substrate by wire is provided at the one end. A distance between a tip of one end of the signal electrode in the electrode connection portion and the end of the optical modulator chip is less than a distance between a tip of an end of the ground electrode in the electrode connection portion and the end of the optical modulator chip.

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