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    Method of measuring multi-mode fiber bandwidth through accessing one fiber end
    32.
    发明授权
    Method of measuring multi-mode fiber bandwidth through accessing one fiber end 有权
    通过访问一个光纤端来测量多模光纤带宽的方法

    公开(公告)号：US08797519B2

    公开(公告)日：2014-08-05

    申请号：US14037912

    申请日：2013-09-26

    Applicant: Corning Incorporated

    Inventor： Xin Chen ,  Jason Edward Hurley ,  Charles Frederick Laing ,  Anping Liu ,  Jody Paul Markley ,  Eric John Mozdy

    IPC: G01N21/00 ,  G02B6/028 ,  H04B10/071 ,  H04B10/2581 ,  H04B10/073 ,  G01M11/00

    CPC classification number: G02B6/0288 ,  G01M11/31 ,  G01M11/3109 ,  H04B10/071 ,  H04B10/0731 ,  H04B10/2581

    Abstract: A method of measuring the bandwidth of a multi-mode optical fiber using single-ended, on-line and off-line approaches and test configurations. The method includes: transmitting a light signal through the first end of a multi-mode fiber toward the second end of the multi-mode fiber, so that a portion of the light signal is reflected by the second end toward the first end of the multi-mode fiber; and receiving the reflected portion of the light signal at the first end of the multi-mode fiber. The method also includes obtaining magnitude and frequency data related to the reflected portion of the light signal at the first end of the multi-mode fiber; and analyzing the magnitude and the frequency data to determine a bandwidth of the multi-mode optical fiber. The length of the multi-mode fiber may also increase over time during testing.

    Abstract translation: 使用单端，在线和离线方法和测试配置测量多模光纤的带宽的方法。 该方法包括：通过多模光纤的第一端朝向多模光纤的第二端发送光信号，使得光信号的一部分被第二端反射到多模光纤的第一端 模式光纤 以及在多模光纤的第一端处接收光信号的反射部分。 该方法还包括：在多模光纤的第一端获得与光信号的反射部分相关的幅度和频率数据; 并分析幅度和频率数据以确定多模光纤的带宽。 在测试期间，多模光纤的长度也可随时间而增加。

    APPARATUS AND METHOD FOR CONTROLLING SUBSTRATE THICKNESS
    34.
    发明公开
    APPARATUS AND METHOD FOR CONTROLLING SUBSTRATE THICKNESS 审中-公开

    公开(公告)号：US20240208850A1

    公开(公告)日：2024-06-27

    申请号：US18418927

    申请日：2024-01-22

    Applicant: CORNING INCORPORATED

    Inventor： Anatoli Anatolyevich Abramov ,  Anping Liu ,  Michael Yoshiya Nishimoto ,  William Anthony Whedon ,  Jae Hyun Yu

    IPC: C03B17/06 ,  G02B26/02 ,  G02B27/09

    CPC classification number: C03B17/064 ,  G02B26/02 ,  G02B27/0955

    Abstract: A control apparatus for controlling a thickness of a substrate, such as a glass ribbon. The control apparatus comprises a laser assembly and a shielding assembly. The laser assembly generates an elongated laser beam traveling in a propagation direction along an optical path. The shielding assembly comprises at least one shield selectively disposed in the optical path. The shield is configured to decrease an optical intensity of a region of the elongated laser beam. The shielding assembly is configured to change an intensity profile of the elongated laser beam from an initial intensity profile to a targeted intensity profile. A desired targeted intensity profile can be dictated by an arrangement of the shield(s) relative to the optical path, and can be selected to affect a temperature change at portions of the substrate determined to benefit from a reduction in thickness.

    METHODS AND APPARATUS FOR MANUFACTURING A RIBBON
    38.
    发明申请
    METHODS AND APPARATUS FOR MANUFACTURING A RIBBON 有权

    公开(公告)号：US20220212976A1

    公开(公告)日：2022-07-07

    申请号：US17602500

    申请日：2020-04-01

    Applicant: CORNING INCORPORATED

    Inventor： Xinghua Li ,  Anping Liu

    IPC: C03B17/06

    Abstract: Methods of manufacturing a ribbon can comprise identifying a location of a nonuniformity in a characteristic of a molten portion of a moving ribbon. The methods can further comprise impinging a deflected pulsed laser beam on a heating zone comprising a location of a nonuniformity in the molten portion of the ribbon. In some embodiments, the heating zone can be elongated in a travel direction of a travel path of the moving ribbon. In some embodiments, the pulsed laser beam can be reflected off a reflective surface of a polygonal reflecting device rotating at a substantially constant angular velocity. In some embodiments, the methods can include impinging the deflected pulsed laser beam on a sensing device to generate a signal. The methods can further comprise calibrating a location of the deflected pulsed laser beam based on the signal from the sensing device.

    Optical fibers and optical systems comprising the same
    39.
    发明授权
    Optical fibers and optical systems comprising the same 有权

    公开(公告)号：US10830943B2

    公开(公告)日：2020-11-10

    申请号：US16169263

    申请日：2018-10-24

    Applicant: Corning Incorporated

    Inventor： Ming-Jun Li ,  Anping Liu

    IPC: G02B6/02 ,  G02B6/036 ,  H01S5/022 ,  G02B27/09 ,  G02B6/26 ,  B23K26/53 ,  B23K26/073 ,  G02B6/32 ,  G02B6/14 ,  G02B6/255

    Abstract: An optical fiber for converting a Gaussian laser beam into a Bessel laser beam may include a first segment optically coupled to a second segment with a transition region, the first segment having a first outer diameter greater than a second outer diameter of the second segment. The first segment may include a first core portion with a first cladding portion extending around the first core portion. The second segment may include a second core portion with a second cladding portion extending around the second core portion. The optical fiber may have a non-axisymmetric refractive index profile or may be coupled to an end cap with a non-axisymmetric refractive index profile.

    METHODS AND APPARATUS FOR CUTTING RADII IN FLEXIBLE THIN GLASS
    40.
    发明申请
    METHODS AND APPARATUS FOR CUTTING RADII IN FLEXIBLE THIN GLASS 审中-公开
    用于在柔性薄玻璃上切割RADII的方法和装置

    公开(公告)号：US20170050877A1

    公开(公告)日：2017-02-23

    申请号：US15120003

    申请日：2015-02-17

    Applicant: Corning Incorporated

    Inventor： Andrew Stephen Altman ,  Carlton Wesley Cole ,  Todd Benson Fleming ,  Anping Liu ,  James Joseph Watkins

    IPC: C03B33/09 ,  C03B33/02 ,  C03B33/04

    CPC classification number: C03B33/091 ,  B23K26/14 ,  B23K26/53 ,  B23K2103/54 ,  C03B33/0222 ,  C03B33/04 ,  Y02P40/57

    Abstract: Methods and apparatus provide for: cutting a thin glass sheet along a curved cutting line, where the curve is divided into a plurality of line segments; applying a laser beam and continuously moving the laser beam along the cutting line; applying a cooling fluid simultaneously with the application of the laser beam in order to propagate a fracture in the glass sheet along the cutting line; and varying one or more cutting parameters as the laser beam moves from one of the plurality of line segments to a next one of the plurality of line segments, wherein the one or more cutting parameters include at least one of: (i) a power of the laser beam, (ii) a speed of the movement, (iii) a pressure of the cooling fluid, and (iv) a flow rate of the cooling fluid.

    Abstract translation: 方法和装置提供：沿着弯曲切割线切割薄玻璃板，其中曲线被分成多个线段; 施加激光束并沿切割线连续移动激光束; 与施加激光束同时施加冷却流体，以沿着切割线传播玻璃板中的断裂; 以及随着所述激光束从所述多个线段之一移动到所述多个线段中的下一个线段而改变一个或多个切割参数，其中所述一个或多个切割参数包括以下中的至少一个：（i） 激光束，（ii）运动速度，（iii）冷却流体的压力，和（iv）冷却流体的流量。

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