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    HOLLOW CORE OPTICAL FIBERS AND METHODS OF MAKING
    1.
    发明公开
    HOLLOW CORE OPTICAL FIBERS AND METHODS OF MAKING 审中-公开

    公开(公告)号：US20240150219A1

    公开(公告)日：2024-05-09

    申请号：US18387646

    申请日：2023-11-07

    Applicant: CORNING INCORPORATED

    Inventor： Paulo Clovis Dainese, Jr. ,  Sushmit Sunil Kumar Goyal ,  Kam Chuen Ng ,  Matthew Artus Tuggle

    IPC: C03B37/027 ,  C03B37/012

    CPC classification number: C03B37/02718 ,  C03B37/01214 ,  C03B2203/16

    Abstract: A method of manufacturing a hollow core optical fiber, the method including positioning at least one glass tube in a glass outer cladding to form a preform precursor, the glass tube comprising a first open end and a second open end, and forming a preform from the preform precursor. The method further including drawing the preform into a hollow core optical fiber and, while drawing the preform, thermally treating the preform to manipulate gas pressure within the glass tube by at least one of (i) heating at least a portion of the preform to increase gas pressure within the glass tube and (ii) cooling at least a portion of the preform to decrease gas pressure within the glass tube.

    System and method for screening homopolymers, copolymers or blends for fabrication
    5.
    发明授权
    System and method for screening homopolymers, copolymers or blends for fabrication 有权

    公开(公告)号：US10790045B1

    公开(公告)日：2020-09-29

    申请号：US16653310

    申请日：2019-10-15

    Applicant: Corning Incorporated

    Inventor： Sushmit Sunil Kumar Goyal ,  Franklin Langlang Lee ,  Adama Tandia ,  Mardochee Reveil

    IPC: G01N33/48 ,  G01N33/50 ,  G16C20/20 ,  G16C20/70 ,  G06N3/12 ,  G16C20/40 ,  G16C20/10

    Abstract: Techniques for screening homopolymers, copolymers or blends for fabrication are disclosed. A data repository stores data points. Each data point comprises a structural repeating unit (SRU) and at least one material property value for the SRU. Each SRU is a homopolymer SRU, a copolymer component SRU or a blend component SRU. A machine determines a fingerprint for at least a subset of the SRUs in the data repository. The machine stores, in the data repository, each determined fingerprint in conjunction with a corresponding SRU. The machine generates a quantitative modeling engine to predict material property values, based on SRUs, for homopolymers, copolymers or blends. The quantitative modeling engine is based, at least in part, on the fingerprints. The machine identifies, using the quantitative modeling engine, at least one homopolymer SRU, copolymer SRU set or blend SRU set that has a material property value within a given range.

    ALKALI DOPED OPTICAL FIBER WITH REDUCED ATTENUATION
    10.
    发明公开
    ALKALI DOPED OPTICAL FIBER WITH REDUCED ATTENUATION 审中-公开

    公开(公告)号：US20240043313A1

    公开(公告)日：2024-02-08

    申请号：US18226816

    申请日：2023-07-27

    Applicant: CORNING INCORPORATED

    Inventor： Sushmit Sunil Kumar Goyal ,  Craig Daniel Nie ,  Pushkar Tandon

    IPC: C03B37/012

    CPC classification number: C03B37/01245 ,  C03B37/01262 ,  C03B2201/50

    Abstract: A method of manufacturing an optical fiber, the method includes drawing a first optical fiber preform at a first draw tension to produce a first alkali doped optical fiber and drawing the first optical fiber preform at a second draw tension to produce a second alkali doped optical fiber, measuring the attenuation of the first alkali doped optical fiber and the second alkali doped optical fiber such that the second alkali doped optical fiber has a lower attenuation. Additionally, the method includes setting the draw tension to the second draw tension and drawing a second optical fiber preform at the second draw tension to produce a third alkali doped optical fiber. The third alkali-doped optical fiber has an attenuation at 850 nm of about 1.50 dB/km or less and an attenuation at 1550 nm of about 0.155 dB/km or less.

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