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    Optical fiber cable
    1.
    发明授权
    Optical fiber cable 有权

    公开(公告)号：US09841573B1

    公开(公告)日：2017-12-12

    申请号：US15216807

    申请日：2016-07-22

    Applicant: OFS Fitel, LLC

    Inventor： Harold P Debban ,  Peter A Weimann

    IPC: G02B6/44

    CPC classification number: G02B6/4413 ,  G02B6/4403 ,  G02B6/4433 ,  G02B6/4434

    Abstract: A cable comprising a central member with a coating that is soft, and which deforms under compression. Ribbon stacks are then placed atop the soft material so that the bottoms of the ribbon stacks are in direct contact with the soft material, thereby causing the soft material to conform to the shape of the bottoms of the ribbon stacks.

    Long span all dielectric self-supporting (ADSS) fiber optic cable
    2.
    发明授权
    Long span all dielectric self-supporting (ADSS) fiber optic cable 有权
    长距离全电介质自支撑（ADSS）光缆

    公开(公告)号：US09323019B1

    公开(公告)日：2016-04-26

    申请号：US14554710

    申请日：2014-11-26

    Applicant: OFS Fitel, LLC

    Inventor： Timothy Goddard ,  Peter A Weimann ,  Jack Ledbetter ,  Richard Norris

    IPC: G02B6/44 ,  G02B6/48

    CPC classification number: G02B6/4434 ,  G02B6/4432 ,  G02B6/4494 ,  G02B6/483

    Abstract: A long span ADSS fiber optic cable has an outer jacket, a central tension rod member, and gel-free buffer tubes stranded around the rod member. Each tube is made of a flexible material having a determined elastic modulus, and optical fibers are contained in each tube with a water absorbent material. Water blocking yarns fill voids between the buffer tubes and surround the tubes. An inner jacket envelops the tubes and the yarns, and additional yarns are provided between the inner and the outer cable jackets. The elastic modulus of the buffer tubes is sufficiently high so that the cable sustains a compressive load of at least 220 N/cm over ten minutes with not more than a 0.1 dB increase in attenuation in any fiber. The rod member and the yarns enable the cable to span a distance of approximately 500 to 1050 feet in a NESC Heavy Load district.

    Abstract translation: 长跨度ADSS光缆具有外护套，中心拉杆构件和在棒构件周围绞合的无凝胶缓冲管。 每个管由具有确定的弹性模量的柔性材料制成，并且光纤被吸收材料包含在每个管中。 阻水纱填充缓冲管之间的空隙并围绕管。 内护套包围管和纱，并且在内电缆外套和外电缆护套之间提供额外的纱线。 缓冲管的弹性模量足够高，使得电缆在十分钟内维持至少220N / cm的压缩载荷，并且在任何光纤中的衰减增加不超过0.1dB。 杆构件和纱线使得电缆在NESC重载区域中跨越大约500至1050英尺的距离。

    Tight-buffered optical fiber having improved fiber access
    5.
    发明授权
    Tight-buffered optical fiber having improved fiber access 有权

    公开(公告)号：US10310209B2

    公开(公告)日：2019-06-04

    申请号：US15086137

    申请日：2016-03-31

    Applicant: OFS Fitel, LLC

    Inventor： Heng Ly ,  Peter A Weimann

    IPC: G02B6/44 ,  G02B6/02

    Abstract: A tight-buffered optical fiber cable includes an improved method of accessing the coated optical fiber. The cable can include an optical fiber having a glass core and a cladding layer. One or more coating layers can be applied about the cladding layer. A buffer jacket material can be applied onto an outer surface of the outer coating layer as a buffer jacket outer layer. The buffer jacket outer layer can have distinctive features including a low tear strength, low elastic modulus, high elongation percentage, and low peeling force. This can allow a user of the optical fiber cable to separate at least a portion of the coated optical fiber from the buffer jacket outer layer by grasping a free end of the coated optical fiber and pulling it through the outer wall of the buffer jacket outer layer, thereby tearing through the outer wall of the buffer jacket outer layer.

    OPTICAL FIBER CABLE STRUCTURE HAVING ROLLABLE RIBBON UNITS AND AN ELASTOMERIC LAYER
    6.
    发明公开
    OPTICAL FIBER CABLE STRUCTURE HAVING ROLLABLE RIBBON UNITS AND AN ELASTOMERIC LAYER 审中-公开

    公开(公告)号：US20240053560A1

    公开(公告)日：2024-02-15

    申请号：US18267439

    申请日：2020-12-17

    Applicant: OFS Fitel, LLC

    Inventor： Harold P Debban ,  Henson P Toland ,  Peter A Weimann

    IPC: G02B6/44 ,  G02B6/52

    CPC classification number: G02B6/443 ,  G02B6/52

    Abstract: Embodiments of the invention include an optical fiber cable. The optical fiber cable includes a multi-fiber unit tube that is substantially circular and dimensioned to receive a plurality of optical fibers. The optical fiber cable also includes a plurality of partially bonded optical fiber ribbon units positioned within the multi-fiber tube. The partially bonded optical fiber ribbon units are partially bonded in such a way that each partially bonded optical fiber ribbon is formed in a substantially circular shape or a random shape. The optical fiber cable also includes at least one elastomeric strength layer formed around the partially bonded optical fiber ribbon units. The optical fiber cable also includes an outer jacket surrounding the multi-fiber tube.

    Loose-tube optical fiber cables
    10.
    发明授权
    Loose-tube optical fiber cables 有权

    公开(公告)号：US09921381B2

    公开(公告)日：2018-03-20

    申请号：US15407289

    申请日：2017-01-17

    Applicant: OFS Fitel, LLC

    Inventor： Diretress P Sinkfield ,  Henson P Toland ,  Peter A Weimann

    IPC: G02B6/44

    CPC classification number: G02B6/443 ,  G02B6/441 ,  G02B6/4434 ,  G02B6/4471

    Abstract: An optical fiber cable comprising 200 micrometer (μm) optical fibers (fibers with an outer diameter of approximately 200 μm) that are located within buffer tubes. This permits fiber packing densities of 3.8 fibers/mm2 or higher. The buffer tubes have wall thicknesses (tbuffer) between approximately 7.5 percent (7.5%) and approximately 30% of the buffer tube's outer diameter (ODbuffer), and a Young's modulus that is between approximately 750 mega-pascals (MPa) and 2,200 MPa, thereby providing the necessary structural integrity to resist kinking yet maintain flexibility.

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