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    Cable with overcoated non-coplanar groups of fusion spliced optical fibers, and fabrication method
    3.
    发明授权
    Cable with overcoated non-coplanar groups of fusion spliced optical fibers, and fabrication method 有权

    公开(公告)号：US11209594B2

    公开(公告)日：2021-12-28

    申请号：US17166745

    申请日：2021-02-03

    Applicant: CORNING INCORPORATED

    Inventor： Qi Wu

    IPC: G02B6/255 ,  G02B6/44

    Abstract: A fiber optic cable includes a plurality of fusion spliced optical fibers, with a polymeric overcoating extending over a fusion splice region as well as over a stripped section of each optical fiber proximate to the fusion splice region, wherein the plurality of fusion spliced optical fibers has a non-coplanar arrangement at the fusion splice region. A method for fabricating a fiber optic cable includes fusion splicing first and second pluralities of optical fibers arranged in a respective one-dimensional array to form a plurality of fusion spliced optical fibers, and contacting the fusion splices as well as stripped sections of the fusion spliced optical fibers with polymeric material in a flowable state. Either before or after the contacting step, the method further includes altering a position of at least some of the spliced optical fibers to yield a configuration in which the plurality of fusion spliced optical fibers have a non-coplanar arrangement at the fusion splice region. The method further includes solidifying the polymeric material.

    OPTICAL FIBER FAN-OUT ASSEMBLY WITH RIBBONIZED INTERFACE FOR MASS FUSION SPLICING, AND FABRICATION METHOD
    4.
    发明申请
    OPTICAL FIBER FAN-OUT ASSEMBLY WITH RIBBONIZED INTERFACE FOR MASS FUSION SPLICING, AND FABRICATION METHOD 有权

    公开(公告)号：US20210157082A1

    公开(公告)日：2021-05-27

    申请号：US17166721

    申请日：2021-02-03

    Applicant: CORNING INCORPORATED

    Inventor： Qi Wu

    IPC: G02B6/44 ,  G02B6/02 ,  G02B6/42 ,  G02B6/255

    Abstract: An optical fiber fan-out assembly includes multiple optical fibers arranged in a one-dimensional array in a transition segment in which spacing between fibers is varied from a first pitch (e.g., a buffered fiber diameter of 900 μm) to a second pitch (e.g., a coated fiber diameter of 250 μm). A polymeric material encapsulates the optical fibers in the transition segment, and the assembly further includes multiple optical fiber legs each terminated with a fiber optic connector. Optical fibers extending beyond a boundary of the polymeric material are subject to being mass fusion spliced to another group of multiple optical fibers, and the fusion splices encapsulated with polymeric material, to form a fiber optic cable assembly. Methods for fabricating multi-fiber assemblies providing fan-out functionality are further provided, and the need for furcation tubes is avoided.

    HIGH PRECISION MEASUREMENT OF REFRACTIVE INDEX PROFILE OF CYLINDRICAL GLASS BODIES
    6.
    发明申请
    HIGH PRECISION MEASUREMENT OF REFRACTIVE INDEX PROFILE OF CYLINDRICAL GLASS BODIES 有权
    圆柱玻璃体折射率指标的高精度测量

    公开(公告)号：US20160123873A1

    公开(公告)日：2016-05-05

    申请号：US14928018

    申请日：2015-10-30

    Applicant: Corning Incorporated

    Inventor： Ian David Cook ,  Norman Henry Fontaine ,  Qi Wu ,  Jacques Gollier

    IPC: G01N21/41

    CPC classification number: G01N21/412 ,  G01M11/37

    Abstract: According to some embodiments a method of measuring the refractive index profile of a consolidated glass body having a cylindrical surface comprises the steps of: (a) forming an image of a slit behind the glass body, (b) optionally pre-scanning the cylindrical surface of the test glass body or a reference glass body and analyzing the data within a fixed window to determine the likely location of the zero-order, un-diffracted beam while ignoring other diffracted beams; (c) optionally adjusting the optical power to improve the intensity of the data within the fixed window in order to improve the analysis; (d) predicting the trajectory of the zero-order beam through the preform based on the sampling location xi (incidence position) of the light impinging on the cylindrical surface and the location at which the zero-order beam impinges on the detector; (e) measuring the cylindrical surface of a glass body while using the estimated location of the zero-order beam and adjusted optical power to set the center of a floating window and the beam power at each measurement point; (e) determining deflection angles of the exiting zero-order beam within the floating window at each sampling location; (e) calculating the refractive index profile of glass body by utilizing a transformation function which determines refractive index at each location based upon the measured deflection angle function of the beam.

    Abstract translation: 根据一些实施例，测量具有圆柱形表面的固结玻璃体的折射率分布的方法包括以下步骤：（a）在玻璃体后面形成狭缝的图像，（b）任选地预先扫描圆柱形表面 测试玻璃体或参考玻璃体，并在固定窗口内分析数据以确定零级非衍射光束的可能位置，同时忽略其他衍射光束; （c）可选地调整光功率以改善固定窗内数据的强度，以便改进分析; （d）基于撞击在圆柱形表面上的光的采样位置xi（入射位置）和零级光束撞击检测器的位置，预测零阶光束通过预制棒的轨迹; （e）在使用零级光束的估计位置并调整光功率来设置浮动窗口的中心和每个测量点处的光束功率时，测量玻璃体的圆柱形表面; （e）在每个采样位置确定浮动窗口内出现的零级波束的偏转角; （e）通过利用基于所测量的光束的偏转角函数来确定每个位置处的折射率的变换函数来计算玻璃体的折射率分布。

    CABLE WITH OVERCOATED NON-COPLANAR GROUPS OF FUSION SPLICED OPTICAL FIBERS, AND FABRICATION METHOD
    8.
    发明申请
    CABLE WITH OVERCOATED NON-COPLANAR GROUPS OF FUSION SPLICED OPTICAL FIBERS, AND FABRICATION METHOD 有权

    公开(公告)号：US20210181416A1

    公开(公告)日：2021-06-17

    申请号：US17166745

    申请日：2021-02-03

    Applicant: CORNING INCORPORATED

    Inventor： Qi Wu

    IPC: G02B6/255 ,  G02B6/44

    Abstract: A fiber optic cable includes a plurality of fusion spliced optical fibers, with a polymeric overcoating extending over a fusion splice region as well as over a stripped section of each optical fiber proximate to the fusion splice region, wherein the plurality of fusion spliced optical fibers has a non-coplanar arrangement at the fusion splice region. A method for fabricating a fiber optic cable includes fusion splicing first and second pluralities of optical fibers arranged in a respective one-dimensional array to form a plurality of fusion spliced optical fibers, and contacting the fusion splices as well as stripped sections of the fusion spliced optical fibers with polymeric material in a flowable state. Either before or after the contacting step, the method further includes altering a position of at least some of the spliced optical fibers to yield a configuration in which the plurality of fusion spliced optical fibers have a non-coplanar arrangement at the fusion splice region. The method further includes solidifying the polymeric material.

    CABLE WITH OVERCOATED NON-COPLANAR GROUPS OF FUSION SPLICED OPTICAL FIBERS, AND FABRICATION METHOD
    9.
    发明申请
    CABLE WITH OVERCOATED NON-COPLANAR GROUPS OF FUSION SPLICED OPTICAL FIBERS, AND FABRICATION METHOD 审中-公开

    公开(公告)号：US20200081186A1

    公开(公告)日：2020-03-12

    申请号：US16551883

    申请日：2019-08-27

    Applicant: CORNING INCORPORATED

    Inventor： Qi Wu

    IPC: G02B6/255 ,  G02B6/44

    Abstract: A fiber optic cable includes a plurality of fusion spliced optical fibers, with a polymeric overcoating extending over a fusion splice region as well as over a stripped section of each optical fiber proximate to the fusion splice region, wherein the plurality of fusion spliced optical fibers has a non-coplanar arrangement at the fusion splice region. A method for fabricating a fiber optic cable includes fusion splicing first and second pluralities of optical fibers arranged in a respective one-dimensional array to form a plurality of fusion spliced optical fibers, and contacting the fusion splices as well as stripped sections of the fusion spliced optical fibers with polymeric material in a flowable state. Either before or after the contacting step, the method further includes altering a position of at least some of the spliced optical fibers to yield a configuration in which the plurality of fusion spliced optical fibers have a non-coplanar arrangement at the fusion splice region. The method further includes solidifying the polymeric material.

    BENDABLE, MODAL-CONDITIONING, SINGLE-MODE OPTICAL FIBERS AND OPTICAL TRANSCEIVERS COMPRISING THE SAME
    10.
    发明申请
    BENDABLE, MODAL-CONDITIONING, SINGLE-MODE OPTICAL FIBERS AND OPTICAL TRANSCEIVERS COMPRISING THE SAME 有权

    公开(公告)号：US20250004193A1

    公开(公告)日：2025-01-02

    申请号：US18738204

    申请日：2024-06-10

    Applicant: CORNING INCORPORATED

    Inventor： Hao Chen ,  Xin Chen ,  Ming-Jun Li ,  Qi Wu

    IPC: G02B6/028

    Abstract: A modal-conditioning, single-mode fiber generally includes a core portion and a cladding portion. The core portion includes a core and an inner cladding. The core comprises an outer radius r1 and a maximum relative refractive index Δ1max. The inner cladding comprises an outer radius r2 and a relative refractive index Δ2. The cladding portion surrounds the core portion and includes a low-index trench surrounding the inner cladding. The low-index trench includes an outer radius r3 and a minimum relative refractive index Δ3min. The radius r2 of the inner cladding may be greater than 12 μm and Δ1max>Δ2>Δ3min. The fiber comprises a mode field diameter MFD greater than or equal to 12 μm and less than or equal to 16 μm at a wavelength of 1310 nm and a 30 mm diameter bend loss of less than or equal to 0.5 dB/turn at 1310 nm.

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