METHOD FOR PRODUCING A CYLINDRICAL COMPONENT FROM SYNTHETIC QUARTZ GLASS CONTAINING FLUORINE
    87.
    发明申请
    METHOD FOR PRODUCING A CYLINDRICAL COMPONENT FROM SYNTHETIC QUARTZ GLASS CONTAINING FLUORINE 审中-公开
    从含有氟的合成石英玻璃制造圆柱形部件的方法

    公开(公告)号:US20150143851A1

    公开(公告)日:2015-05-28

    申请号:US14395468

    申请日:2013-04-16

    Abstract: The following method steps are known for producing cylindrical components from synthetic quartz glass containing fluorine: producing a SiO2 soot body, removing hydroxyl groups from the soot body, loading the soot body with fluorine, post-chlorinating the soot body loaded with fluorine, and vitrifying the soot body to form the cylindrical component. In order to achieve distributions in particular of fluorine that are especially reproducibly homogeneous axially and radially, according to the invention it is proposed that a concentration of hydroxyl groups in the range of 1 to 300 weight ppm is set in the soot body upon the drying and an average fluorine content of at least 1500 weight ppm is set upon the loading with fluorine, and that loading with chlorine occurs during the post-chlorination, which loading results in an average chlorine content of at least 50 weight ppm in the synthetic quartz glass after the vitrification, under the further stipulation that the weight ratio of the contents of fluorine and chlorine is less than 30.

    Abstract translation: 以下的方法步骤已知用于由含氟的合成石英玻璃制造圆柱形部件:产生SiO 2烟炱体,从烟炱体中除去羟基,用氟装载烟炱体,对装有氟的烟炱体进行后氯化和玻璃化 烟炱体形成圆柱形部件。 为了实现特别是在轴向和径向上特别可重复地均匀分布的氟的分布,根据本发明,提出在干燥后在烟灰体中设定1〜300重量ppm范围内的羟基浓度, 在加载氟时,设定至少1500重量ppm的平均氟含量,并且在后氯化期间发生氯负载,该负载导致在合成石英玻璃中的平均氯含量至少为50重量ppm 玻璃化,进一步规定氟和氯含量的重量比小于30。

    Optical fiber, optical transmission system, and method of making optical fiber
    88.
    发明授权
    Optical fiber, optical transmission system, and method of making optical fiber 有权
    光纤,光传输系统及制造光纤的方法

    公开(公告)号:US08687936B2

    公开(公告)日:2014-04-01

    申请号:US13706458

    申请日:2012-12-06

    Abstract: Provided is an inexpensive low-loss optical fiber suitably used in an optical transmission network. An optical fiber includes a core, an optical cladding, and a jacket. The core has a relative refractive index difference between 0.2% and 0.32% and has a refractive index volume between 9%·μm2 and 18%·μm2. The jacket has a relative refractive index difference between 0.03% and 0.20%. Glass constituting the core has a fictive temperature between 1400° C. and 1560° C. Stress remaining in the core is compressive stress. A cutoff wavelength measured on a fiber having a length of 2 m is 1300 nm or more and a cutoff wavelength measured on a fiber having a length of 100 m is 1500 nm or less. An effective area at a wavelength of 1550 nm is 110 μm2 or more. A attenuation at a wavelength of 1550 nm is 0.19 dB/km or less.

    Abstract translation: 提供了适用于光传输网络的便宜的低损耗光纤。 光纤包括芯,光学包层和外壳。 芯的相对折射率差为0.2%至0.32%,折射率体积在9%·μm2和18%·μm2之间。 护套的相对折射率差为0.03%至0.20%。 构成核心的玻璃具有1400℃至1560℃之间的假想温度。芯体中的应力是压应力。 在长度为2μm的光纤上测量的截止波长为1300nm以上,在长度为100μm的光纤上测定的截止波长为1500nm以下。 1550nm波长的有效面积为110μm2以上。 在1550nm波长处的衰减为0.19dB / km或更小。

    Burner and method for the manufacture of synthetic quartz glass
    89.
    发明授权
    Burner and method for the manufacture of synthetic quartz glass 有权
    用于制造合成石英玻璃的燃烧器和方法

    公开(公告)号:US08650912B2

    公开(公告)日:2014-02-18

    申请号:US13097687

    申请日:2011-04-29

    Abstract: A method for manufacturing quartz glass using a main burner having a multi-tube assembly having a center tube, a first enclosure tube surrounding the center tube, a second enclosure tube surrounding the first enclosure tube, a tubular shell surrounding the multi-tube assembly, and a plurality of nozzles disposed within the tubular shell, a double-tube assembly surrounding at least a forward opening of the main burner includes feeding silica-forming compound to the center tube, a combustion-supporting gas to the first enclosure tube and the nozzles, a combustible gas to the second enclosure tube and the tubular shell, and a combustion-supporting gas to the double-tube assembly, forming oxyhydrogen flame for hydrolyzing or decomposing the silica-forming compound to form silica, depositing the silica on the target, and melting and vitrifying the deposited silica into quartz glass.

    Abstract translation: 一种使用具有多管组件的主燃烧器制造石英玻璃的方法,所述多管组件具有中心管,围绕中心管的第一外壳管,围绕第一外壳管的第二外壳管,围绕多管组件的管状外壳, 以及设置在所述管状壳体内的多个喷嘴,围绕所述主燃烧器的至少前部开口的双管组件包括将二氧化硅形成化合物输送到所述中心管,将燃烧载体气体输送到所述第一外壳管和所述喷嘴 ,到第二外壳管和管状壳体的可燃气体,以及到双管组件的燃烧负载气体,形成用于水解或分解二氧化硅形成化合物以形成二氧化硅的氢氧焰,将二氧化硅沉积在靶上, 并将沉积的二氧化硅熔融并玻璃化成石英玻璃。

    Synthetic silica glass with uniform fictive temperature
    90.
    发明授权
    Synthetic silica glass with uniform fictive temperature 有权
    具有均匀假想温度的合成石英玻璃

    公开(公告)号:US08596094B2

    公开(公告)日:2013-12-03

    申请号:US12902238

    申请日:2010-10-12

    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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