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    LOW MOAT VOLUME SINGLE MODE ULTRA-LOW LOSS FIBER
    12.
    发明申请
    LOW MOAT VOLUME SINGLE MODE ULTRA-LOW LOSS FIBER 有权

    公开(公告)号：US20220187531A1

    公开(公告)日：2022-06-16

    申请号：US17547672

    申请日：2021-12-10

    申请人： CORNING INCORPORATED

    发明人： Peter Gottfried Hebgen ,  Hazel Benton Matthews, III ,  Snigdharaj Kumar Mishra

    IPC分类号： G02B6/028 ,  G02B6/02

    摘要： Embodiments of the current disclosure include low moat volume single mode ultra-low loss optical fibers. In some embodiments, a single mode optical fiber includes a first core region; a second core region surrounding and directly adjacent to the first core region, wherein a volume V of the second core region is less than or equal to 14% Δμm2; a cladding region surrounding the core region; and wherein the optical fiber has a cable cutoff of less than 1260 nm, a mode field diameter at 1310 nm of 8.6 microns to 9.7 microns, a mode field diameter at 1550 nm of 9.9 microns to 11 microns, and an attenuation at 1550 nm of less than or equal to 0.17 dB/km.

    LOW ATTENUATION FIBER WITH VISCOSITY MATCHED CORE AND INNER CLAD
    15.
    发明申请
    LOW ATTENUATION FIBER WITH VISCOSITY MATCHED CORE AND INNER CLAD 有权
    低衰减光纤与粘度匹配核心和内部粘合

    公开(公告)号：US20150370010A1

    公开(公告)日：2015-12-24

    申请号：US14728132

    申请日：2015-06-02

    申请人： Corning Incorporated

    发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Hazel Benton Matthews, III ,  Pushkar Tandon

    IPC分类号： G02B6/036 ,  C03B37/027 ,  G02B6/02

    CPC分类号： G02B6/03627 ,  C03B37/02 ,  C03B37/027 ,  C03B37/02718 ,  C03B37/02727 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/31 ,  C03B2203/223 ,  C03B2203/23 ,  C03B2203/24 ,  C03B2205/55 ,  C03B2205/56 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/12 ,  C03C2201/31 ,  C03C2213/00 ,  G02B6/02014

    摘要： A single mode optical fiber having a core made from silica and less than or equal to about 6.5 weight % germania and having a maximum relative refractive index Δ1MAX. The optical fiber also has an inner cladding surrounding the core and having a minimum relative refractive index Δ2MIN. A difference between a softening point of the core and a softening point of the inner cladding is less than or equal to about 20° C., and Δ1MAX>Δ2MIN. The single mode optical fiber may also have an outer cladding surrounding the inner cladding made from silica or SiON. The outer cladding has a maximum relative refractive index Δ3MAX, and Δ3MAX>Δ2MIN. A method for manufacturing an optical fiber includes providing a preform to a first furnace, the preform, drawing the optical fiber from the preform, and cooling the drawn optical fiber in a second furnace.

    摘要翻译： 一种单模光纤，其具有由二氧化硅制成并且小于或等于约6.5重量％的锗并具有最大相对折射率＆Dgr; 1MAX的芯。 光纤还具有围绕芯的内包层并具有最小的相对折射率＆Dgr; 2MIN。 芯的软化点和内包层的软化点之间的差值小于或等于约20℃，并且＆Dgr; 1MAX>＆Dgr; 2MIN。 单模光纤还可以具有包围由二氧化硅或SiON制成的内包层的外包层。 外包层具有最大相对折射率＆Dgr; 3MAX和＆Dgr; 3MAX>＆Dgr; 2MIN。 一种制造光纤的方法包括：将预成型件提供给第一炉，预型件，从预成型件拉制光纤，并在第二炉中冷却拉制的光纤。