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    Optical-fiber ribbon with spaced optical-fiber units
    1.
    发明授权
    Optical-fiber ribbon with spaced optical-fiber units 有权

    公开(公告)号：US11442238B2

    公开(公告)日：2022-09-13

    申请号：US17130568

    申请日：2020-12-22

    申请人： Prysmian S.p.A.

    发明人： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Luca Giorgio De Rai

    IPC分类号： G02B6/44

    摘要： An optical-fiber ribbon includes optical fibers (e.g., reduced-diameter optical fibers) arranged in parallel within optical-fiber units, wherein at least one adjacent pair of optical-fiber units is separated by a longitudinal adhesive-free spacing for a portion of the optical-fiber ribbon's length. Typically, each adjacent pair of optical-fiber units is separated by an adhesive-free spacing for a respective portion of the optical-fiber assembly's longitudinal length. In an exemplary embodiment, longitudinal adhesive-free spacings effectively increase the width of an optical-fiber ribbon formed of reduced-diameter optical fibers so that the optical-fiber ribbon achieves a more conventional optical-fiber ribbon width, thereby facilitating mass-fusion splicing using standard splicing equipment.

    Optical-Fiber Ribbon with Adhesive-Free Gaps
    2.
    发明申请
    Optical-Fiber Ribbon with Adhesive-Free Gaps 有权

    公开(公告)号：US20220196944A1

    公开(公告)日：2022-06-23

    申请号：US17130589

    申请日：2020-12-22

    申请人： Prysmian S.p.A.

    发明人： Ehsan Fallahmohammadi ,  Clint Nicholaus Anderson ,  Luca Giorgio De Rai

    IPC分类号： G02B6/44

    摘要： An optical-fiber ribbon includes intermittent gaps along its longitudinal length in which no bonding material is present across the width of the optical-fiber ribbon. These intermittent gaps without bonding material (e.g., adhesive beads) help to reduce or eliminate bonding-material interference as the optical-fiber ribbon is positioned within an alignment chuck during preparations for mass-fusion splicing.

    High density optical cables
    9.
    发明授权
    High density optical cables 有权

    公开(公告)号：US11796750B2

    公开(公告)日：2023-10-24

    申请号：US17649518

    申请日：2022-01-31

    申请人： Prysmian S.p.A.

    发明人： Ben H. Wells ,  Ehsan Fallahmohammadi ,  Brian G. Risch ,  Clint Nicholaus Anderson ,  John R. Sach ,  Jeffrey Scott Barker

    IPC分类号： G02B6/44

    CPC分类号： G02B6/4434 ,  G02B6/443

    摘要： An optical cable includes a plurality of buffer tubes and an outer jacket surrounding the plurality of buffer tubes. Each of the plurality of buffer tubes includes a buffer tube jacket surrounding a plurality of flexible ribbons. The buffer tube jacket includes a first deformable material that has undergone permanent plastic deformation during formation of the optical cable to conform to an irregular axial cross-sectional shape of each respective plurality of flexible ribbons. Each flexible ribbon includes a plurality of optical fibers and a first longitudinal length. For each flexible ribbon, each optical fiber of the plurality of optical fibers is attached to an adjacent optical fiber of the plurality of optical fibers along a bond region comprising a second longitudinal length that is less than the first longitudinal length.