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    OPTICAL FIBER
    65.
    发明申请
    OPTICAL FIBER 有权
    光纤

    公开(公告)号：US20160147010A1

    公开(公告)日：2016-05-26

    申请号：US14943190

    申请日：2015-11-17

    Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD.

    Inventor： Yoshiaki TAMURA ,  Tetsuya HARUNA ,  Yoshihiro SAITO ,  Yuki KAWAGUCHI ,  Masaaki HIRANO

    IPC: G02B6/02

    CPC classification number: G02B6/02 ,  C03B37/01211 ,  C03B37/014 ,  C03B37/01807 ,  C03B37/01861 ,  C03B37/01892 ,  C03B2201/06 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2203/26 ,  C03B2205/40 ,  C03C3/06 ,  C03C13/045 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2201/50 ,  C03C2203/40

    Abstract: An optical fiber containing an alkali metal and capable of reducing Rayleigh scattering loss is provided. An optical fiber has a core and a cladding made of silica glass and enclosing the core. The cladding contains fluorine and has a refractive index lower than the refractive index of the core. The core contains first group dopants selected from the group of Na element, K element, or a compound thereof at an average concentration of 0.2 ppm or more and 10 ppm or less. The core also contains second group dopants for reducing the viscosity of silica glass and having a diffusion coefficient of 1×10−12 cm2/s or more and smaller than the diffusion coefficient of the first group dopants, by an average concentration of 0.2 ppm or more at a temperature of 2000° C. to 2300° C.

    Abstract translation: 提供含有碱金属并能够降低瑞利散射损失的光纤。 光纤具有由石英玻璃制成的芯和包层，并且包围芯。 包层含氟，折射率低于芯的折射率。 核心包含平均浓度为0.2ppm以上且10ppm以下的选自Na元素，K元素或其化合物的第一族掺杂剂。 该芯还含有第二组掺杂剂，用于降低石英玻璃的粘度，并且扩散系数为1×10-12cm2 / s以上且小于第一组掺杂剂的扩散系数，平均浓度为0.2ppm或 更高温度在2000°C至2300°C

    Optical fiber preform, optical fiber, and method of manufacturing optical fiber preform
    66.
    发明授权
    Optical fiber preform, optical fiber, and method of manufacturing optical fiber preform 有权
    光纤预制棒，光纤和制造光纤预制棒的方法

    公开(公告)号：US09139466B2

    公开(公告)日：2015-09-22

    申请号：US13352644

    申请日：2012-01-18

    Applicant: Masaaki Hirano ,  Tetsuya Haruna ,  Yoshiaki Tamura

    Inventor： Masaaki Hirano ,  Tetsuya Haruna ,  Yoshiaki Tamura

    IPC: G02B6/00 ,  C03B37/018

    CPC classification number: C03B37/01807 ,  C03B37/01853 ,  C03B2201/07 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  Y10T428/294

    Abstract: An optical fiber preform includes a core portion, in which the core portion includes an alkali-metal-doped core glass portion doped with an alkali metal, the maximum concentration of oxygen molecules in the core portion is 30 mol ppb or more, and the average concentration of the alkali metal in the core portion is 5 atomic ppm or more. A method of manufacturing an optical fiber preform includes an alkali-metal-doping step of doping a pipe composed of silica-based glass with an alkali metal, an oxygen-molecule-doping step of doping the glass pipe with oxygen molecules, and a collapsing step of collapsing the glass pipe by heating the glass pipe, in which the optical fiber preform is manufactured.

    Abstract translation: 光纤预制棒包括芯部，芯部包括掺杂有碱金属的碱金属掺杂的芯玻璃部分，芯部中的氧分子的最大浓度为30mol ppb以上，平均 芯部中的碱金属的浓度为5原子ppm以上。 制造光纤预制棒的方法包括：碱金属掺杂步骤，用碱金属掺杂由二氧化硅基玻璃构成的管，用氧分子掺杂玻璃管的氧分子掺杂步骤，以及塌陷 通过加热其中制造光纤预制棒的玻璃管来塌缩玻璃管的步骤。

    FUSED SILICA GLASS ARTICLE HAVING IMPROVED RESISTANCE TO LASER DAMAGE
    67.
    发明申请
    FUSED SILICA GLASS ARTICLE HAVING IMPROVED RESISTANCE TO LASER DAMAGE 审中-公开
    熔融二氧化硅玻璃制品具有改善的耐光损伤性能

    公开(公告)号：US20140373571A1

    公开(公告)日：2014-12-25

    申请号：US14269409

    申请日：2014-05-05

    Applicant: Corning Incorporated

    Inventor： Kenneth Edward Hrdina ,  Changyi Lai ,  Lisa Anne Moore ,  Ulrich Wilhelm Heinz Neukirch ,  William Rogers Rosch

    IPC: C03C23/00

    CPC classification number: C03C23/0095 ,  C03B19/1453 ,  C03B32/00 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/21 ,  C03B2201/22 ,  C03C3/06 ,  C03C4/0085 ,  C03C21/007 ,  C03C2201/21 ,  C03C2201/22 ,  C03C2201/23 ,  C03C2203/54

    Abstract: A fused silica glass article having greater resistance to damage induced by exposure to laser radiation such as laser induced wavefront distortion at deep ultraviolet (DUV) wavelengths, and behaviors such as fluence dependent transmission, which are related to intrinsic defects in the glass. The improved resistance to laser damage may be achieved in some embodiments by loading the glass article with molecular hydrogen (H2) at temperatures of about 400° C. or less, or 350° C. or less. The combined OH and deuteroxyl (OD) concentration may be less than 10 ppm by weight. In other embodiments, the improved resistance may be achieved by providing the glass with 10 to 60 ppm deuteroxyl (OD) species by weight. In still other embodiments, improved resistance to such laser damage may be achieved by both loading the glass article with molecular hydrogen at temperatures of about 350° C. or less and providing the glass with less than 10 ppm combined OH and OD, or 10 to 60 ppm OD by weight.

    Abstract translation: 一种熔融石英玻璃制品，其具有较强的耐受暴露于激光辐射（例如在深紫外（DUV）波长处的激光诱导波前失真）以及与玻璃中的固有缺陷有关的诸如通量依赖透射的行为的损伤。 在一些实施方案中，可以通过在约400℃或更低或350℃或更低的温度下加载具有分子氢（H 2）的玻璃制品来实现对激光损伤的改进的抗性。 组合的OH和氘氧化（OD）浓度可以小于10ppm重量。 在其它实施方案中，可以通过为玻璃提供10至60ppm的重量的氘氧化（OD）种类来实现改进的电阻。 在另外的其它实施方案中，可以通过在大约350℃或更低的温度下将玻璃制品加载到分子氢中来提供对这种激光损伤的改进的抗性，并且使玻璃具有小于10ppm的组合的OH和OD，或10至 60ppm OD重量。

    SYNTHETIC SILICA GLASS WITH UNIFORM FICTIVE TEMPERATURE
    70.
    发明申请
    SYNTHETIC SILICA GLASS WITH UNIFORM FICTIVE TEMPERATURE 有权
    合成二氧化硅玻璃具有均匀的温度

    公开(公告)号：US20110092354A1

    公开(公告)日：2011-04-21

    申请号：US12902238

    申请日：2010-10-12

    Applicant: Carlos Duran ,  Kenneth Edward Hrdina ,  Ulrich Wilhelm Heinz Neukirch

    Inventor： Carlos Duran ,  Kenneth Edward Hrdina ,  Ulrich Wilhelm Heinz Neukirch

    IPC: C03C3/04 ,  C03B25/00

    CPC classification number: C03B25/02 ,  C03B19/1453 ,  C03B2201/07 ,  C03B2201/075 ,  C03B2201/22 ,  C03B2201/23

    Abstract: A method of making a silica glass having a uniform fictive temperature. The glass article is heated at a target fictive temperature, or heated or cooled at a rate that is less than the rate of change of the fictive temperature, for a time that is sufficient to allow the fictive temperature of the glass to come within 3° C. of the target fictive temperature. The silica glass is then cooled from the target fictive temperature to a temperature below the strain point of the glass at a cooling rate that is greater than the relaxation rate of the glass at the target fictive temperature. The silica glass has a fictive temperature that varies by less than 3° C. after the annealing step. A silica glass made by the method is also described.

    Abstract translation: 制造具有均匀的假想温度的二氧化硅玻璃的方法。 将玻璃制品在目标假想温度下加热，或以低于假想温度变化率的速率加热或冷却一段足以使玻璃的假想温度达到3°的时间 C.目标虚构温度。 然后将二氧化硅玻璃从目标假想温度冷却至低于玻璃应变点的温度，其冷却速率大于目标假想温度下玻璃的松弛率。 二氧化硅玻璃具有在退火步骤之后变化小于3℃的假想温度。 还描述了通过该方法制备的二氧化硅玻璃。

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