公开(公告)号：US20190258089A1

公开(公告)日：2019-08-22

申请号：US16397289

申请日：2019-04-29

Applicant: Sumitomo Osaka Cement Co., Ltd.

Inventor： Kei KATOU ,  Toshio KATAOKA ,  Junichiro ICHIKAWA

IPC: G02F1/01 ,  H05K1/02

Abstract: An optical modulator including an optical modulation element mounted inside a housing, in which at least a portion of an electric line is connected to an external circuit board through a flexible printed circuit, and which is disposed on the external circuit board. A recess portion that mounts the flexible printed circuit is formed on an outer bottom surface of the housing and at a part where the flexible printed circuit is connected, and a device for preventing a resonance mode is provided such that a resonance mode of a microwave and a millimeter wave or a parallel plate mode is prevented from being generated among a surface A of the recess portion facing the flexible printed circuit, an electric wiring part B provided on the flexible printed circuit overlapping the surface A when seen in a plan view, an electric wiring part C provided on the external circuit board overlapping the surface A when seen in a plan view.

公开(公告)号：US20190113779A1

公开(公告)日：2019-04-18

申请号：US16090500

申请日：2017-04-03

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Takatomo ITOU ,  Junichiro ICHIKAWA

IPC: G02F1/035 ,  G02F1/225

Abstract: Provided is an optical modulator module in which an occurrence of an error burst or an increase of an optical loss caused by a vapor phase transportation material can be effectively suppressed. The optical modulator module includes a substrate 1 that has a pyroelectric effect, an optical waveguide 2 that is formed on a principal surface of the substrate 1, a conductive film (not illustrated) that is formed on the substrate 1, and control electrodes (31 to 33) that control a light wave propagated through the optical waveguide 2. In the optical modulator module, the light wave is input to an end portion 21 of the optical waveguide (or is output from the end portion 21 of the optical waveguide) by a space optical system (not illustrated). Adsorption means 4 for adsorbing a vapor phase transportation material is disposed in the vicinity of the end portion 21 of the optical waveguide.

公开(公告)号：US20190025612A1

公开(公告)日：2019-01-24

申请号：US15755735

申请日：2016-09-27

Applicant: Sumitomo Osaka Cement Co., Ltd

Inventor： Kei KATOU ,  Toshio KATAOKA ,  Junichiro ICHIKAWA

IPC: G02F1/01 ,  H05K1/14 ,  H05K1/02

CPC classification number: G02F1/0102 ,  H05K1/0216 ,  H05K1/028 ,  H05K1/119 ,  H05K1/147 ,  H05K2201/052

Abstract: Provided is an optical modulator in which a phenomenon of a resonance mode or the like is prevented from being generated in a recess portion of a housing that mounts a flexible printed circuit and of which broadband characteristics are improved.There is provided an optical modulator in which an optical modulation element is mounted inside a housing, in which at least a portion of an electric line is connected to an external circuit board 7 through a flexible printed circuit 6, and which is disposed on the external circuit board. A recess portion (area indicated with a dotted line D) that mounts the flexible printed circuit is formed on an outer bottom surface of the housing and at a part where the flexible printed circuit is connected, and means for preventing a resonance mode or the like (for example, a corrugated shape 21) is provided such that a resonance mode of a microwave and a millimeter wave or a parallel plate mode is prevented from being generated among a surface A of the recess portion facing the flexible printed circuit, an electric wiring part B provided on the flexible printed circuit overlapping the surface A when seen in a plan view, an electric wiring part C provided on the external circuit board overlapping the surface A when seen in a plan view.

公开(公告)号：US20170075188A1

公开(公告)日：2017-03-16

申请号：US15171638

申请日：2016-06-02

Applicant: Sumitomo Osaka Cement Co., Ltd.

Inventor： Yuu NAKATA ,  Katsutoshi KONDOU ,  Tetsuya FUJINO ,  Junichiro ICHIKAWA

IPC: G02F1/225 ,  G02F1/01

CPC classification number: G02F1/2257 ,  G02F1/0126 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2202/20

Abstract: An optical waveguide device includes a substrate with an electro-optic effect on which an optical waveguide and an electrode for controlling optical waves propagating through the optical waveguide are formed and at least one light source for irradiating ultraviolet light on the substrate.

Abstract translation: 一种光波导器件包括具有电光效应的基板，其上形成有光波导和用于控制通过光波导传播的光波的电极以及用于在基板上照射紫外光的至少一个光源。

公开(公告)号：US20150370095A1

公开(公告)日：2015-12-24

申请号：US14765924

申请日：2014-02-07

Applicant: SUMITOMO OSAKA CEMENT CO., LTD.

Inventor： Katsutoshi KONDOU ,  Junichiro ICHIKAWA

IPC: G02F1/035

CPC classification number: G02F1/035 ,  G02F1/225 ,  G02F2201/12

Abstract: An aspect of the present invention is an optical modulator including an electro-optic substrate, an optical waveguide, and a signal electrode for applying an electric field corresponding to a modulation signal to the optical waveguide. The electro-optic substrate includes a trench portion, which is formed by digging a surface of the electro-optic substrate, and a ridge portion, which is formed in a ridge shape by the trench portion so that an optical waveguide is provided. The trench portion includes a first trench portion, which is a trench portion between a pair of branched optical waveguides, and a second trench portion, which is a trench portion other than the first trench portion. Digging depths of the first and second trench portions are different.

Abstract translation: 本发明的一个方面是一种光调制器，其包括电光基板，光波导和用于将对应于调制信号的电场施加到光波导的信号电极。 电光基板包括通过挖掘电光基板的表面形成的沟槽部分和由沟槽部分形成为脊形的脊部分，从而设置光波导。 沟槽部分包括作为一对分支光波导之间的沟槽部分的第一沟槽部分和除第一沟槽部分之外的沟槽部分的第二沟槽部分。 第一沟槽部分和第二沟槽部分的挖掘深度是不同的。