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    MOUNTING STRUCTURE OF OPTICAL MODULE AND OPTICAL MOUNTING BOARD
    1.
    发明公开
    MOUNTING STRUCTURE OF OPTICAL MODULE AND OPTICAL MOUNTING BOARD 审中-公开

    公开(公告)号：US20240053553A1

    公开(公告)日：2024-02-15

    申请号：US18259451

    申请日：2021-01-12

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Kota Shikama ,  Norio Sato ,  Takeshi Sakamoto

    IPC分类号： G02B6/42

    CPC分类号： G02B6/4261 ,  G02B6/4268

    摘要： An embodiment mounting structure of an optical module includes, in order, a plurality of optical modules, a first optical waveguide component, a first optical connector, a second optical connector, and a second optical waveguide component, in which the first optical connector includes a first magnetic component and accommodates the first optical waveguide component optically connected to the optical modules, the second optical connector includes a second magnetic component and accommodates the second optical waveguide component, and at least one of the first magnetic component or the second magnetic component includes a hard magnetic material, and by causing a magnetic force to act between the first magnetic component and the second magnetic component, an attractive force is applied in a direction in which a gap between facing end surfaces of the first magnetic component and the second magnetic component decreases.

    Optical Connecting Structure
    3.
    发明申请
    Optical Connecting Structure 有权

    公开(公告)号：US20220350084A1

    公开(公告)日：2022-11-03

    申请号：US17621154

    申请日：2019-06-21

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Hiroshi Ishikawa ,  Makoto Abe ,  Norio Sato ,  Atsushi Aratake

    IPC分类号： G02B6/30

    摘要： An embodiment optical coupling structure includes: at least one optical element; at least one optical fiber which has an end surface facing the optical element; and an adhesive agent which is applied to at least the end surface and a part of the optical element so as to optically and mechanically couple the optical element and the optical fiber, wherein both a contact angle which a surface of the optical element and a surface of the adhesive agent make and a contact angle which a surface of the optical fiber and the surface of the adhesive agent make are less than 90 degrees. With such a configuration, alignment between the optical element and the optical fiber can be realized by passive alignment so that a mounting time and a mounting cost in coupling the optical element and the optical fiber can be reduced.

    Alignment method for optical waveguide element
    5.
    发明授权
    Alignment method for optical waveguide element 有权

    公开(公告)号：US12111504B2

    公开(公告)日：2024-10-08

    申请号：US17627743

    申请日：2019-07-18

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Hiroshi Ishikawa ,  Makoto Abe ,  Norio Sato ,  Atsushi Aratake

    IPC分类号： G02B6/42 ,  G02B6/122

    CPC分类号： G02B6/4204 ,  G02B6/122 ,  G02B6/422 ,  G02B6/4239

    摘要： An optical waveguide alignment method includes a step of covering an end portion of an optical fiber, an end portion of a PLC, and a microlens with an adhesive before curing in a state in which at least one microlens is disposed between incidence and emission end faces of end portions of the optical fiber and the PLC, a step of causing light for alignment to be incident on at least one of the optical fiber or the PLC so that light enters a portion covered with the adhesive between the optical fiber and the PLC, and a step of curing the adhesive after the microlens moves onto an optical path between the optical fiber and the PLC due to radiation pressure of light. The optical fiber and the PLC are optically connected via the adhesive and the microlens, and the optical fiber, the PLC, and the microlens are mechanically connected by the adhesive.

    WIRING STRUCTURE
    8.
    发明公开
    WIRING STRUCTURE 审中-公开

    公开(公告)号：US20230284383A1

    公开(公告)日：2023-09-07

    申请号：US18002830

    申请日：2020-07-02

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Hitoshi Wakita ,  Norio Sato

    IPC分类号： H05K1/11

    CPC分类号： H05K1/115

    摘要： A trace structure includes a first signal line in which a first outer layer conductor on a top surface of a dielectric substrate, a first via, a first inner layer conductor, a second via, and a second outer layer conductor on a bottom surface of the substrate are electrically connected, and a second signal line in which a third outer layer conductor on the top surface, a third via, a second inner layer conductor, a fourth via, and a fourth outer layer conductor on the bottom surface are electrically connected, and in which the first and second inner layer conductors have substantially equivalent lengths and are arranged on different planes each parallel to the bottom surface to overlap each other in a vertical direction, and a sum of lengths of the first and second vias is substantially equivalent to a sum of lengths of the third and fourth vias.

    Optical Connecting Component and Optical Connecting Structure
    9.
    发明申请
    Optical Connecting Component and Optical Connecting Structure 有权

    公开(公告)号：US20230003950A1

    公开(公告)日：2023-01-05

    申请号：US17782475

    申请日：2020-10-28

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Kota Shikama ,  Norio Sato ,  Takeshi Sakamoto

    IPC分类号： G02B6/38 ,  G02B6/42

    摘要： An optical connecting component is an optical connecting component to be connected to another optical connecting component, which includes an optical waveguide component, an alignment component for fixing the optical waveguide component, and a magnetic structure integrated with the alignment component. A positioning structure is provided on a connecting end face of the alignment component, in which the positioning structure determines a relative position between the connecting end face and a connecting end face of an alignment component provided in the other optical connecting component.

    Optical Connector and Optical Connecting Structure
    10.
    发明申请
    Optical Connector and Optical Connecting Structure 有权

    公开(公告)号：US20220365290A1

    公开(公告)日：2022-11-17

    申请号：US17772616

    申请日：2019-11-28

    申请人： Nippon Telegraph and Telephone Corporation

    发明人： Kota Shikama ,  Norio Sato ,  Takeshi Sakamoto

    IPC分类号： G02B6/38

    摘要： An optical connector of the present invention includes a ferrule accommodating optical fibers, a flange integrated with the ferrule, a sleeve in which a pair of the ferrules are accommodated, and a connection component which is provided around the sleeve and includes a magnet or a metallic magnetic material, wherein at least one of the connection component and the flange includes a magnet, and an attractive force acts on the connection component and the flanges, whereby cores of the opposing optical fibers come into close contact with each other. As a result, the optical connector of the present invention can provide the present physical contact connection and can provide a smaller optical connector.