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公开(公告)号：US10598862B2
公开(公告)日：2020-03-24
申请号：US15941024
申请日：2018-03-30
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Norikazu Miyazaki , Yoichi Hosokawa , Yuu Kataoka
Abstract: Provided is an optical element module including: a substrate; an optical modulator unit that is formed in the substrate and includes an optical waveguide; a first lens unit that is disposed on an end surface of the substrate, and includes a lens portion at which a signal light beam emitted from the optical modulator unit is collimated; and a second lens unit that introduces the signal light beam passing through the first lens unit to an optical fiber. The optical modulator unit includes a Mach-Zehnder type optical waveguide, a Y-branch coupler of the Mach-Zehnder type optical waveguide includes an output waveguide through which a signal light beam is guided, and a radiated light beam waveguide through which a radiated light beam is guided, and an unnecessary light beam removing unit, which suppresses input of a higher-order mode light beam propagating through the output waveguide or a leaked light beam propagating through the inside of the substrate into the optical fiber through the lens portions of the first lens unit, is provided between the output waveguide and the radiated light beam waveguide in the vicinity of an end of the substrate.
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公开(公告)号：US10585251B2
公开(公告)日：2020-03-10
申请号：US16231608
申请日：2018-12-24
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Norikazu Miyazaki , Toru Sugamata
Abstract: An optical modulator and an optical transmission device using the same are provided. The optical modulator includes an optical waveguide substrate where an optical waveguide is formed; a light modulation element, provided in the optical waveguide substrate and including a modulation electrode applying an electric field corresponding to a modulation signal to the optical waveguide; a terminal substrate, disposed near the light modulation element and including terminal resistors that terminate the modulation signal, wherein the optical waveguide substrate, the light modulation element and the terminal substrate are accommodated in a housing; and a heat dissipation auxiliary element, provided between the terminal resistors and the housing. A distance b between the terminal resistors and the heat dissipation element is set to be shorter than a distance a from the terminal resistors to an end on the side of the optical waveguide substrate of the terminal substrate.
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公开(公告)号：US10477677B2
公开(公告)日：2019-11-12
申请号：US16086320
申请日：2016-09-15
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Norikazu Miyazaki , Ryo Shimizu , Toru Sugamata
Abstract: An optical modulator with FPC and optical transmission device using the same are provided. This optical modulator includes a flexible printed circuit which electrically connects the optical modulator to a circuit board. The flexible printed circuit has a substantially quadrilateral shape. A pad is formed on the flexible printed circuit along one side of the substantially quadrilateral shape so as to be electrically connected to the circuit board. In order to release the mechanical stress applied onto the side or the end portion of the flexible printed circuit and/or to prevent propagation of distortion generated in the side or the end portion, the flexible printed circuit has: a cutout or a notch provided in a direction from a part of at least one side toward the inside of the flexible printed circuit; and/or a curved portion connecting at least two adjacent sides.
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公开(公告)号：US10247966B2
公开(公告)日：2019-04-02
申请号：US15719583
申请日：2017-09-29
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kei Kato , Norikazu Miyazaki , Ryo Shimizu
IPC: G02F1/01
Abstract: Provided is an optical modulator module in which a modulation substrate having a plurality of optical modulation units is stored inside a package case. The optical modulator module includes a plurality of signal supply lines configured to supply a modulation signal to the optical modulation unit through a connector terminal which is introduced into the package case. At least two or more of the plurality of signal supply lines are set such that the signal supply lines have overall electrical lengths which are different from each other. A particular part of the signal supply line employs at least one of the following configurations (a) and (b): (a) setting the signal supply line having a longer overall electrical length to have a wider cross-sectional area of a surface perpendicular to a direction in which the modulation signal propagates; and (b) setting a cross-sectional area of the particular part to be wider than cross-sectional areas of parts other than the particular part and setting the signal supply line having a longer overall electrical length to have the particular part increased in length.
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公开(公告)号：US20180284371A1
公开(公告)日：2018-10-04
申请号：US15893789
申请日：2018-02-12
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Toshio Kataoka , Norikazu Miyazaki , Kei Kato
Abstract: An optical element module includes a housing which houses an optical element, in which the optical element is optically coupled to an optical fiber introduced into the housing, the optical fiber is held by a fiber fixing part provided at the housing, the fiber fixing part includes, along a longitudinal direction thereof, a first tubular portion, a second tubular portion which is connected to a through-hole provided in the side wall of the housing and has an inner diameter substantially equal to an inner diameter of the through-hole and smaller than an inner diameter of the first tubular portion, and a tapered portion which continuously connects the first tubular portion and the second tubular portion, and the other end of a slit of the fiber fixing part reaches the tapered portion or the second tubular portion.
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Patent Agency Ranking
公开(公告)号：US10061179B2
公开(公告)日：2018-08-28
申请号：US15685224
申请日：2017-08-24
Applicant: Sumitomo Osaka Cement Co., Ltd
Inventor： Norikazu Miyazaki , Toru Sugamata
IPC: G02F1/035 , G02F1/225 , H04B10/50 , H04B10/516 , G02F1/21
CPC classification number: G02F1/2255 , G02F2001/212 , H04B10/501 , H04B10/505 , H04B10/516
Abstract: An optical modulator includes an optical modulation element including a plurality of signal electrodes and the like, a plurality of lead pins and the like for inputting radio frequency signals, and a relay substrate in which conductor patterns and the like that electrically connect the lead pins with the signal electrodes respectively are formed, the relay substrate is disposed so that a propagation direction of the radio frequency signals that have propagated through the lead pins is bent and guided to the conductor patterns, and the relay substrate is constituted so that widths of gaps between the plurality of conductor patterns in the optical modulator-side edge of the relay substrate is smaller than, preferably smaller than 50% of widths of gaps between the plurality of conductor patterns in the lead pin-side edge.
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公开(公告)号：US09778539B2
公开(公告)日：2017-10-03
申请号：US14780657
申请日：2014-02-25
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Norikazu Miyazaki , Toshio Kataoka , Youichi Hosokawa
CPC classification number: G02F1/2255 , G02F1/0123 , G02F2001/212
Abstract: Provided is an optical waveguide element including a first interactive part, a first EO substrate line, a second interactive part, and a second EO substrate line. A relay substrate unit includes a first relay substrate line, a second relay substrate line, and a loss adjusting part. The loss adjusting part is provided to the relay substrate line in a combination in which an electrical loss is low so that an electrical loss in a combination of the first EO substrate line and the first relay substrate line, and an electrical loss in a combination of the second EO substrate line and the second relay substrate line become approximately the same as each other.
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公开(公告)号：US09335570B2
公开(公告)日：2016-05-10
申请号：US14369511
申请日：2012-12-28
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Kei Katou , Norikazu Miyazaki
CPC classification number: G02F1/035 , G02F1/0121 , G02F1/225 , G02F1/2255 , G02F2001/212
Abstract: An object of the present invention is to provide an optical waveguide element module where the bonding wires can be prevented from disengaging or disconnecting so as to provide high reliability. Another object is to provide an optical waveguide element module that can be made compact and where an increase in the manufacturing cost can be minimized. An optical waveguide element module having: a waveguide substrate 1 on which an optical waveguide (not shown) and control electrodes (E1 to E4) for controlling light waves that propagate through the optical waveguide are formed; external substrates (21 to 24) having wire circuits (TM1, C1), which are connected to control electrodes electrically, disposed proximity to the waveguide substrate; a housing 3 in which the external substrate and the waveguide substrate are arranged; and terminals (T21 to T24) which are connected to an external electric circuit (not shown) for supplying electrical signals to the control electrode or deriving electrical signals from the control electrode provided with the housing, wherein relay electrode pads (CP1, CP4) which are electrically isolated from both of the wiring circuit and the control electrode are formed in any portion of the waveguide substrate 1 and the external substrates (21 to 24), and at least one bonding wire (W21, W22, W41, W42) is connected from a control electrode to the terminal or from the wire circuit to the terminal via the relay electrode pad.
Abstract translation: 本发明的目的是提供一种光波导元件模块，其中可以防止接合线脱离或断开，从而提供高可靠性。 另一个目的是提供一种光波导元件模块，该光波导元件模块可以制造得紧凑并且可以最小化制造成本的增加。 一种光波导元件模块，具有：波导基板1，其上形成有用于控制通过光波导传播的光波的光波导（未示出）和控制电极（E1至E4）; 具有布置在波导基板附近的电连接到控制电极的线路电路（TM1，C1）的外部基板（21至24） 设置有外部基板和波导基板的壳体3; 和连接到用于向控制电极提供电信号或从设置有壳体的控制电极导出电信号的外部电路（未示出）连接的端子（T21至T24），其中继电器电极焊盘（CP1，CP4） 与布线电路电气隔离，并且控制电极形成在波导基板1和外部基板（21〜24）的任意部分，并且至少一个接合线（W21，W22，W41，W42）被连接 从控制电极到终端，或者通过中继电极焊盘从线电路到终端。
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公开(公告)号：US08909001B2
公开(公告)日：2014-12-09
申请号：US14037105
申请日：2013-09-25
Applicant: Sumitomo Osaka Cement Co., Ltd.
Inventor： Norikazu Miyazaki , Motohiro Takemura , Youichi Hosokawa
Abstract: An optical modulator comprises a substrate 4 having a thickness of 20 μm or less and an electro-optic effect, a reinforcing substrate 6 holding the substrate 4 thereon and a resin layer 5 disposed between the substrate and the reinforcing substrate, in which the substrate 4 includes optical waveguides 1 and 2 and control electrodes 3 and 31 which control light waves propagating through the optical waveguide, in which the optical waveguides include at least two optical waveguides 1 separated from each other, and in which the control electrodes 31 disposed between the two optical waveguides are configured to include two electrodes 31 disposed along each optical waveguide, and a thin line 8 conducting the two electrodes 31 at a same potential.
Abstract translation: 光学调制器包括厚度为20μm以下的基板4和电光效果，保持基板4的加强基板6和设置在基板和增强基板之间的树脂层5，其中基板4 包括光波导1和2以及控制电极3和31，控制电极3和31控制通过光波导传播的光波，其中光波导包括彼此分离的至少两个光波导1，并且其中设置在两者之间的控制电极31 光波导被配置为包括沿着每个光波导设置的两个电极31和将两个电极31导通相同电位的细线8。
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70.发明授权公开(公告)号：US12259631B2
公开(公告)日：2025-03-25
申请号：US17916400
申请日：2020-12-04
Applicant: SUMITOMO OSAKA CEMENT CO., LTD.
Inventor： Norikazu Miyazaki , Yu Kataoka
Abstract: Provided is an optical control element that can minimize an optical path difference between branched waveguides while reducing a difference in structure between the branched waveguides by disposing an input portion and an output portion of an optical waveguide on the same side of a substrate on which the optical waveguide is formed. An optical control element includes a substrate 1 having an electro-optic effect, an optical waveguide 2 formed on the substrate, and a control electrode controlling a light wave propagating through the optical waveguide, in which an input portion (input light L1) and an output portion (output light L2) of the optical waveguide are formed on the same side of the substrate, the optical waveguide includes at least one Mach-Zehnder type optical waveguide portion (MZ) that has two branched waveguides (21, 22) branched from one optical waveguide and combines the two branched waveguides to form one optical waveguide, and the branched waveguides have an even number of turned-back potions (A1, A2).
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