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    Optical waveguide circuit device
    2.
    发明授权
    Optical waveguide circuit device 有权

    公开(公告)号：US10545292B2

    公开(公告)日：2020-01-28

    申请号：US16145489

    申请日：2018-09-28

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Masanori Takahashi ,  Yasuyoshi Uchida ,  Shintaro Yamasaki ,  Junichi Hasegawa

    IPC: G02B6/35 ,  G02B6/293

    Abstract: An optical waveguide circuit device includes: an optical waveguide circuit including a cladding layer formed on a substrate and made from silica-based glass, and an optical waveguide formed within the cladding layer and made from silica-based glass; heaters formed over the cladding layer and the optical waveguide and configured to heat the optical waveguide; wiring line electrode layers formed over the cladding layer, each of the wiring line electrode layers being coupled to a corresponding heater of the heaters and configured to allow electrical power to be supplied to the coupled heater; and an insulating layer covering the cladding layer, the heaters, and the wiring line electrode layers. The wiring line electrode layers adjacent to each other in a plan view are formed in different wiring layers. The wiring line electrode layers adjacent to each other in the same wiring layer are spaced by at least a predetermined distance.

    CROSS OPTICAL WAVEGUIDE STRUCTURE AND OPTICAL WAVEGUIDE DEVICE
    3.
    发明申请
    CROSS OPTICAL WAVEGUIDE STRUCTURE AND OPTICAL WAVEGUIDE DEVICE 审中-公开

    公开(公告)号：US20190331852A1

    公开(公告)日：2019-10-31

    申请号：US16506768

    申请日：2019-07-09

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Yasuyoshi Uchida ,  Junichi Hasegawa

    IPC: G02B6/125 ,  G02B6/122

    Abstract: A cross optical waveguide structure includes a first optical waveguide, a second optical waveguide, and an intersection portion positioned in the same plane. The first optical waveguide includes a first fixed-width portion, a second fixed-width portion, a first tapering portion, and a second tapering portion. The second optical waveguide includes a third fixed-width portion, a fourth fixed-width portion, a third tapering portion, and a fourth tapering portion. The intersection portion is linked to the first to the fourth tapering portions having such a tapering shape that a mode field radius of the light input to the first fixed-width portion, the second fixed-width portion, or the third fixed-width portion, and the fourth fixed-width portion is reduced by the first tapering portion, the second tapering portion, the third tapering portion, the fourth tapering portion, respectively, and the light is collected in the intersection portion.

    Cross optical waveguide structure and optical waveguide device
    4.
    发明授权
    Cross optical waveguide structure and optical waveguide device 有权

    公开(公告)号：US11054578B2

    公开(公告)日：2021-07-06

    申请号：US16506768

    申请日：2019-07-09

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Yasuyoshi Uchida ,  Junichi Hasegawa

    IPC: G02F1/01 ,  G02B6/00 ,  G02B6/125 ,  G02B6/122

    Abstract: A cross optical waveguide structure includes a first optical waveguide, a second optical waveguide, and an intersection portion positioned in the same plane. The first optical waveguide includes a first fixed-width portion, a second fixed-width portion, a first tapering portion, and a second tapering portion. The second optical waveguide includes a third fixed-width portion, a fourth fixed-width portion, a third tapering portion, and a fourth tapering portion. The intersection portion is linked to the first to the fourth tapering portions having such a tapering shape that a mode field radius of the light input to the first fixed-width portion, the second fixed-width portion, or the third fixed-width portion, and the fourth fixed-width portion is reduced by the first tapering portion, the second tapering portion, the third tapering portion, the fourth tapering portion, respectively, and the light is collected in the intersection portion.

    Spot-size conversion optical waveguide
    5.
    发明授权
    Spot-size conversion optical waveguide 有权
    点尺寸转换光波导

    公开(公告)号：US09417388B2

    公开(公告)日：2016-08-16

    申请号：US14961248

    申请日：2015-12-07

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Shintaro Yamasaki ,  Kazutaka Nara ,  Masanori Takahashi ,  Yasuyoshi Uchida

    IPC: G02B6/26 ,  G02B6/122 ,  G02B6/14 ,  G02B6/30

    CPC classification number: G02B6/1228 ,  G02B6/14 ,  G02B6/305

    Abstract: A spot-size-converting optical waveguide includes a core portion. A first core portion of the core portion has a first straight portion and a first tapered portion. The first straight portion extends in a direction, having width and height that are approximately constant in the direction, and the first tapered portion is continuous with the first straight portion and decreases in width and height toward a termination portion. A second core portion of the core portion has a straight-portion-coating portion, a tapered-portion-coating portion, and a second tapered portion, the straight-portion-coating portion covers the first straight portion, the tapered-portion-coating portion covers the first tapered portion continuously with the straight-portion-coating portion and decreases in width and height along the first tapered portion's shape, and the second tapered portion increases in width and height toward the direction. A refractive index of the second core portion is lower than that of the first core portion.

    Abstract translation: 点尺寸转换光波导包括芯部分。 芯部的第一芯部具有第一直线部分和第一锥形部分。 所述第一直线部分沿着所述方向上的宽度和高度近似恒定的方向延伸，并且所述第一锥形部分与所述第一直线部分连续并且朝向终端部分的宽度和高度减小。 芯部的第二芯部具有直线部分涂覆部分，锥形部分涂覆部分和第二锥形部分，直线部分涂覆部分覆盖第一直线部分，锥形部分涂覆部分 第一锥形部分与直线涂覆部分连续地覆盖第一锥形部分，并且沿着第一锥形部分的形状减小了宽度和高度，并且第二锥形部分朝向该方向的宽度和高度增加。 第二芯部的折射率低于第一芯部的折射率。

    SPOT-SIZE CONVERSION OPTICAL WAVEGUIDE
    7.
    发明申请
    SPOT-SIZE CONVERSION OPTICAL WAVEGUIDE 有权
    点尺寸转换光波导

    公开(公告)号：US20160085026A1

    公开(公告)日：2016-03-24

    申请号：US14961248

    申请日：2015-12-07

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Shintaro Yamasaki ,  Kazutaka Nara ,  Masanori Takahashi ,  Yasuyoshi Uchida

    IPC: G02B6/122

    CPC classification number: G02B6/1228 ,  G02B6/14 ,  G02B6/305

    Abstract: A spot-size-converting optical waveguide includes a core portion. A first core portion of the core portion has a first straight portion and a first tapered portion. The first straight portion extends in a direction, having width and height that are approximately constant in the direction, and the first tapered portion is continuous with the first straight portion and decreases in width and height toward a termination portion. A second core portion of the core portion has a straight-portion-coating portion, a tapered-portion-coating portion, and a second tapered portion, the straight-portion-coating portion covers the first straight portion, the tapered-portion-coating portion covers the first tapered portion continuously with the straight-portion-coating portion and decreases in width and height along the first tapered portion's shape, and the second tapered portion increases in width and height toward the direction. A refractive index of the second core portion is lower than that of the first core portion.

    Abstract translation: 点尺寸转换光波导包括芯部分。 芯部的第一芯部具有第一直线部分和第一锥形部分。 所述第一直线部分沿着所述方向上的宽度和高度近似恒定的方向延伸，并且所述第一锥形部分与所述第一直线部分连续并且朝向终端部分的宽度和高度减小。 芯部的第二芯部具有直线部分涂覆部分，锥形部分涂覆部分和第二锥形部分，直线部分涂覆部分覆盖第一直线部分，锥形部分涂覆部分 第一锥形部分与直线涂覆部分连续地覆盖第一锥形部分，并且沿着第一锥形部分的形状减小了宽度和高度，并且第二锥形部分朝向该方向的宽度和高度增加。 第二芯部的折射率低于第一芯部的折射率。

    Optical waveguide structure and optical waveguide circuit
    8.
    发明授权
    Optical waveguide structure and optical waveguide circuit 有权

    公开(公告)号：US10444430B2

    公开(公告)日：2019-10-15

    申请号：US16145519

    申请日：2018-09-28

    Applicant: FURUKAWA ELECTRIC CO., LTD.

    Inventor： Yasuyoshi Uchida ,  Junichi Hasegawa

    IPC: G02B6/28 ,  G02B6/12 ,  G02B6/126 ,  G02B6/122 ,  G02B6/293 ,  G02B6/13 ,  G02B6/125

    Abstract: An optical waveguide structure includes: a cladding; a first core in the cladding having a first end surface; a second core in the cladding having a second end surface; slit formed horizontally with respect to a waveguide direction of the light to be waveguided by the first and second cores; and a first part and a second part composed of a material identical to a material of the cladding, wherein a pair of the first and second end surfaces disposed opposing each other with the slit interposed between the pair of the first and second end surfaces, the first part is interposed between the first end surface and the slit, and the second part is interposed between the second end surface and the slit.

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