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1. 发明公开

US20240201455A1 LENS UNIT, OPTICAL WAVEGUIDE DEVICE, AND OPTICAL TRANSMISSION DEVICE 审中-公开
公开(公告)号：US20240201455A1
公开(公告)日：2024-06-20
申请号：US18555920
申请日：2021-09-30
申请人： SUMITOMO OSAKA CEMENT CO., LTD.
发明人： Kei Katou , Hideki Ichimei
IPC分类号： G02B6/42
CPC分类号： G02B6/4204 , G02B6/4244
摘要： Mechanical strength of a lens that optically couples an optical waveguide and an optical fiber provided on a substrate is improved. A lens unit that optically couples an optical waveguide provided on a substrate and an optical fiber has a lens portion and a holding portion that holds the lens portion, and the holding portion has a thick portion, along one side surface that is not a surface through which an optical axis passes, in which a thickness measured in a direction of the optical axis is larger than a thickness of an other portion of the holding portion.

2. 发明授权

US10527874B2 Optical modulator 有权
公开(公告)号：US10527874B2
公开(公告)日：2020-01-07
申请号：US16090276
申请日：2017-04-03
申请人： SUMITOMO OSAKA CEMENT CO., LTD.
发明人： Norikazu Miyazaki , Kei Katou
IPC分类号： G02F1/225 , G02F1/025 , G02F1/21 , G02B6/42 , G02F1/03 , G02F1/035 , G02F1/01
摘要： An optical modulator is provided and includes a substrate that has an electro-optic effect, an optical waveguide that is formed on the substrate, a plurality of control electrodes that control a light wave propagated through the optical waveguide, and a plurality of light receiving elements that detect a light wave propagated through the optical waveguide. The optical modulator has two or more independent optical waveguide modulation portions. The light receiving elements are respectively provided in an upper part of the substrate with respect to the independent optical waveguide modulation portions. A wiring substrate is located above the substrate. A plurality of electric wirings are located on the wiring substrate. The plurality of electric wirings are disposed to extend in the vicinity of one side of the wiring substrate, are electrically connected to the light receiving elements, and output a signal detected by the light receiving elements to the outside.

3. 发明授权

US10268057B2 FPC-attached optical modulator and optical transmission apparatus using same 有权
公开(公告)号：US10268057B2
公开(公告)日：2019-04-23
申请号：US15851851
申请日：2017-12-22
申请人： Sumitomo Osaka Cement Co., Ltd
发明人： Kei Katou , Toru Sugamata
IPC分类号： G02F1/035 , G02F1/03 , G02F1/225 , G02F1/21
摘要： An optical modulator includes: an optical modulation element which is accommodated in a housing and has a signal electrode; a lead pin for inputting a high-frequency signal; a relay substrate in which a conductor pattern which electrically connects the lead pin and the signal electrode is formed; and a conductive extension portion which extends along a length direction of the lead pin in a range which includes at least a position of a connection portion between the lead pin and the conductor pattern, in which the extension portion is electrically connected to the housing.

4. 发明授权

US11500264B2 Optical waveguide device with reinforcement member for optical fiber and waveguide portion 有权
公开(公告)号：US11500264B2
公开(公告)日：2022-11-15
申请号：US17399625
申请日：2021-08-11
申请人： Sumitomo Osaka Cement Co., Ltd.
发明人： Kei Katou , Norikazu Miyazaki
IPC分类号： G02F1/225 , G02F1/00 , G02F1/313 , G02F1/21
摘要： An optical waveguide device includes a substrate on which an optical waveguide is formed, and an object that is disposed on the substrate. The optical waveguide includes a mode conversion/branching portion that converts a mode of a light wave propagating through the optical waveguide and branches the light wave, and the object is disposed to cover a part or the whole of the mode conversion/branching portion or not to cover the mode conversion/branching portion when the substrate is viewed in a plan view. In a case where the object is disposed to cover a part of the mode conversion/branching portion, the object is disposed not to consecutively cover a section over a length of a predetermined value or higher in an advancing direction of a light wave.

5. 发明授权

US09335570B2 Optical-waveguide-element module 有权
标题翻译：光波导元件模块
公开(公告)号：US09335570B2
公开(公告)日：2016-05-10
申请号：US14369511
申请日：2012-12-28
申请人： SUMITOMO OSAKA CEMENT CO., LTD.
发明人： Kei Katou , Norikazu Miyazaki
IPC分类号： G02F1/035 , G02F1/01 , G02F1/225 , G02F1/21
CPC分类号： G02F1/035 , G02F1/0121 , G02F1/225 , G02F1/2255 , G02F2001/212
摘要： 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.
摘要翻译：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。

6. 发明授权

US11022763B2 Optical module 有权
公开(公告)号：US11022763B2
公开(公告)日：2021-06-01
申请号：US16364603
申请日：2019-03-26
申请人： Sumitomo Osaka Cement Co., Ltd.
发明人： Tokutaka Hara , Kei Katou
IPC分类号： G02B6/42 , G02B6/26 , G02B6/36 , G02B7/10 , G02B5/18
摘要： An optical module in which an optical element is housed in a housing includes: an optical window member through which input light to the optical element or output light from the optical element passes and which hermetically seals inside of the housing; and a holding member that holds the optical window member. The optical window member is fixed to the housing by the holding member. A difference between linear expansion coefficients of the holding member and the optical window member is smaller than a difference between linear expansion coefficients of the housing and the optical window member. A position where the optical window member is attached on the holding member protrudes to an optical element side from a position where the holding member itself is fixed.

7. 发明授权

US10365506B2 Optical modulator 有权
公开(公告)号：US10365506B2
公开(公告)日：2019-07-30
申请号：US15755735
申请日：2016-09-27
申请人： Sumitomo Osaka Cement Co., Ltd
发明人： Kei Katou , Toshio Kataoka , Junichiro Ichikawa
IPC分类号： G02F1/01 , H05K1/02 , H05K1/14 , H05K1/11
摘要： 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.

8. 发明授权

US10078253B2 Optical modulator 有权
公开(公告)号：US10078253B2
公开(公告)日：2018-09-18
申请号：US15515614
申请日：2016-03-29
申请人： Sumitomo Osaka Cement Co., Ltd
发明人： Youichi Hosokawa , Norikazu Miyazaki , Kei Katou
IPC分类号： G02F1/035 , G02F1/225 , G02F1/03 , G02F1/21
CPC分类号： G02F1/2255 , G02F1/0344 , G02F1/035 , G02F1/225 , G02F2001/212
摘要： Provided is an optical modulator in which even in a case where an optical waveguide and a control electrode are highly integrated, a distortion due to stress acting on the optical waveguide from lead-out wiring of a signal electrode is mitigated and occurrence of a temperature drift or the like is suppressed. An optical modulator includes: a substrate 1 having an electro-optic effect; optical waveguides (L1 to L4), each of which is formed on the substrate and provided with at least one Mach-Zehnder type optical waveguide; and a control electrode which controls light waves propagating through the optical waveguides, in which the control electrode is configured of signal electrodes (S1 and S2) and ground electrodes (G1 to G3), each of the signal electrodes being provided with a pad part (S1P or S2P) for input or output, which is electrically connected to an electric circuit which is provided outside the substrate, an interaction part (indicated by arrow R1) which applies an electric field to the optical waveguide, and a lead-out wiring part which connects the pad part and the interaction part to each other, a portion of the lead-out wiring part is disposed parallel to an extended direction (a lateral direction in FIG. 3) of the Mach-Zehnder type optical waveguide within a range (indicated by arrow R2) in which two branching waveguides configuring the Mach-Zehnder type optical waveguide are present in the extended direction, and any one of a portion of the interaction part, another portion of the lead-out wiring part, and a stress relaxation structure of the ground electrode is formed at a position which is axially symmetrical to the portion of the lead-out wiring part with respect to a centrosymmetric axis in the extended direction of the Mach-Zehnder type optical waveguide.

9. 发明授权

US09897826B2 Optical modulator 有权
公开(公告)号：US09897826B2
公开(公告)日：2018-02-20
申请号：US15468116
申请日：2017-03-24
申请人： SUMITOMO OSAKA CEMENT CO., LTD.
发明人： Kei Katou , Norikazu Miyazaki , Ryo Shimizu
IPC分类号： G02F1/01 , G02F1/03 , G02F1/035 , G02F1/225 , G02F1/21
CPC分类号： G02F1/0327 , G02F1/0322 , G02F1/035 , G02F1/225 , G02F2001/212 , G02F2201/58
摘要： In an optical modulator, a light-receiving element, and an output port are disposed in a substrate. In addition, at least a part of an electrical line, which electrically connects the light-receiving element and the output port to each other, is formed in the substrate. In addition, a plurality of the optical modulation sections are provided. In addition, among a plurality of the light-receiving elements which are provided to the optical modulation sections, at least one light-receiving element is disposed at a position different from positions of the other light-receiving elements in a light wave propagating direction. A plurality of the output ports are disposed in an arrangement in the light wave propagating direction in correspondence with an arrangement of the plurality of the light-receiving elements in the light wave propagating direction.

10. 发明授权

US09885889B2 Optical modulator 有权
公开(公告)号：US09885889B2
公开(公告)日：2018-02-06
申请号：US15468117
申请日：2017-03-24
申请人： SUMITOMO OSAKA CEMENT CO., LTD.
发明人： Kei Katou , Norikazu Miyazaki , Ryo Shimizu
IPC分类号： G02F1/035 , G02F1/03 , G02F1/225 , G02F1/21
CPC分类号： G02F1/0327 , G02F1/0316 , G02F1/225 , G02F2001/212 , G02F2201/58
摘要： An optical modulator includes a first optical modulation section and a second optical modulation section which use modulation signals different from each other when applying a modulation signal to the modulation electrode and performing optical modulation. In addition, a light-receiving element is disposed on a substrate, and the light-receiving element has a first light-receiving section that detects optical signal propagating from a first waveguide which guides the optical signal output from the first optical modulation section. In addition, the light-receiving element also has a second light-receiving section that detects an optical signal propagating through a second waveguide which guides the optical signal output from the second optical modulation section.

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