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    NON-CIRCULAR MULTICORE FIBER AND METHOD OF MANUFACTURE
    4.
    发明申请
    NON-CIRCULAR MULTICORE FIBER AND METHOD OF MANUFACTURE 有权
    非圆形多光纤及其制造方法

    公开(公告)号：US20160349447A1

    公开(公告)日：2016-12-01

    申请号：US15137336

    申请日：2016-04-25

    申请人： Corning Incorporated

    发明人： Douglas Llewellyn Butler ,  Daniel Warren Hawtof ,  Rick Charles Layton, III ,  Gautam Meda ,  John Stone, III ,  Pushkar Tandon

    IPC分类号： G02B6/02 ,  C03B37/028

    CPC分类号： G02B6/02042 ,  C03B37/01205 ,  C03B37/01222 ,  C03B37/027 ,  C03B37/029 ,  C03B2203/04 ,  C03B2203/12 ,  C03B2203/34 ,  G02B6/00

    摘要： A multicore fiber is provided. The multicore fiber includes a plurality of cores spaced apart from one another, and a cladding surrounding the plurality of cores and defining a substantially rectangular or cross-sectional shape having four corners. Each corner has a radius of curvature of less than 1000 microns. The multicore fiber may be drawn from a preform in a circular draw furnace in which a ratio of a maximum cross-sectional dimension of the preform to an inside diameter of the preform to an inside diameter of the draw furnace is greater than 0.60. The multicore fiber may have maxima reference surface.

    摘要翻译： 提供多芯光纤。 多芯光纤包括彼此间隔开的多个芯，以及围绕多个芯并且限定具有四个角的基本上矩形或横截面形状的包层。 每个拐角的曲率半径小于1000微米。 多芯纤维可以在圆形拉丝炉中从预成型件中拉出，其中预成型坯的最大截面尺寸与预成型坯的内径与拉制炉的内径之比大于0.60。 多芯纤维可以具有最大参考表面。

    MULTICORE OPTICAL FIBER WITH REDUCED CROSS TALK
    5.
    发明公开
    MULTICORE OPTICAL FIBER WITH REDUCED CROSS TALK 审中-公开

    公开(公告)号：US20240061167A1

    公开(公告)日：2024-02-22

    申请号：US18231967

    申请日：2023-08-09

    申请人： CORNING INCORPORATED

    发明人： Kevin Wallace Bennett ,  Douglas Llewellyn Butler ,  Pushkar Tandon

    IPC分类号： G02B6/02

    CPC分类号： G02B6/02042

    摘要： A multicore optical fiber including four cores arranged in a linear configuration, the centerline of each core being spaced from the centerline of an adjacent core by a distance x of about 30 microns or less, and each core having a relative refractive index Δ1. A cladding surrounding each of the four cores, the cladding including an inner cladding region with a relative refractive index Δ2, a depressed-index cladding region with a relative refractive index Δ3, and an outer cladding region with a relative refractive index Δ4, wherein Δ1>Δ2>Δ3 and Δ1>Δ4>Δ3. Furthermore, each core of the four cores has a mode field diameter, at a wavelength of 1310 nm, of about 8.1 microns or less, and cross talk between adjacent cores is about −18 dB or less at wavelengths of 1310 nm and 1550 nm per 2 km fiber length.

    FIBER ARRAY SPACERS, OPTICAL ASSEMBLIES INCORPORATING FIBER ARRAY SPACERS, AND METHODS OF FABRICATING THE SAME
    7.
    发明申请
    FIBER ARRAY SPACERS, OPTICAL ASSEMBLIES INCORPORATING FIBER ARRAY SPACERS, AND METHODS OF FABRICATING THE SAME 有权

    公开(公告)号：US20210096302A1

    公开(公告)日：2021-04-01

    申请号：US17022443

    申请日：2020-09-16

    申请人： CORNING INCORPORATED

    发明人： Douglas Llewellyn Butler ,  James Scott Sutherland

    IPC分类号： G02B6/36 ,  G02B6/25

    摘要： Fiber array spacers, optical fiber assemblies, optical assemblies, and methods for fabricating optical assemblies are disclosed. In one embodiment, an optical fiber assembly includes a fiber array spacer and a fiber ribbon having an array of optical fibers. The fiber array spacer has an array of spacer fibers, wherein individual spacer fibers of the array of spacer fibers are bonded to one another, and a diameter of the individual spacer fibers determines a height of the fiber array spacer. Each optical fiber of the array of optical fibers has an glass portion. The glass portion of each optical fiber is bonded to the fiber array spacer such that a longitudinal axis of the individual spacer fibers is transverse to a longitudinal axis of individual optical fibers of the fiber ribbon.

    Optical tube waveguide lasing medium and related method
    8.
    发明授权
    Optical tube waveguide lasing medium and related method 有权

    公开(公告)号：US10574021B2

    公开(公告)日：2020-02-25

    申请号：US15485836

    申请日：2017-04-12

    申请人： Corning Incorporated

    发明人： Douglas Llewellyn Butler ,  Daniel Warren Hawtof

    IPC分类号： H01S3/067 ,  H01S3/16

    摘要： Laser waveguides, methods and systems for forming a laser waveguide are provided. The waveguide includes an inner cladding layer surrounding a central axis and a glass core surrounding and located outside of the inner cladding layer. The glass core includes a laser-active material. The waveguide includes an outer cladding layer surrounding and located outside of the glass core. The inner cladding, outer cladding and/or core may surround a hollow central channel or bore and may be annular in shape.