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    POROUS GLASS BASE MATERIAL MANUFACTURING APPARATUS, METHOD FOR MANUFACTURING POROUS GLASS BASE MATERIAL, AND METHOD FOR MANUFACTURING GLASS BASE MATERIAL FOR OPTICAL FIBER
    1.
    发明公开
    POROUS GLASS BASE MATERIAL MANUFACTURING APPARATUS, METHOD FOR MANUFACTURING POROUS GLASS BASE MATERIAL, AND METHOD FOR MANUFACTURING GLASS BASE MATERIAL FOR OPTICAL FIBER 审中-公开

    公开(公告)号：US20230167004A1

    公开(公告)日：2023-06-01

    申请号：US17921751

    申请日：2021-04-07

    申请人： Shin-Etsu Chemical Co., Ltd.

    发明人： Naoto NODA

    IPC分类号： C03B37/018 ,  C03B19/10

    CPC分类号： C03B37/018 ,  C03B19/106

    摘要： The porous glass base material manufacturing apparatus releases gas of organic siloxane raw materials into the flame of a group of burners that moves relative to a starting base material along the longitudinal direction of the starting base material rotating around a rotation axis along the longitudinal direction to form soot of porous glass particles on the surface of the starting base material. The porous glass base material manufacturing apparatus is equipped with a vaporizer that vaporizes liquid raw materials containing organic siloxane in a liquid state supplied from a raw material tank to make a raw material mixed gas mixed with raw material gas and carrier gas and a raw material gas pipe that supplies the raw material mixed gas to the burner. The raw material gas pipe is insulated and kept warm by double insulation.

    Method of Producing Glass of Optical Quality
    4.
    发明申请
    Method of Producing Glass of Optical Quality 审中-公开
    生产玻璃光学质量的方法

    公开(公告)号：US20090053427A1

    公开(公告)日：2009-02-26

    申请号：US11885745

    申请日：2006-02-15

    申请人： Monika Oswald ,  Jurgen Meyer ,  Klaus Deller

    发明人： Monika Oswald ,  Jurgen Meyer ,  Klaus Deller

    IPC分类号： B05D5/06 ,  B29D11/00 ,  B05D3/08

    CPC分类号： C03B37/01291 ,  C03B19/01 ,  C03B19/102 ,  C03B19/106 ,  C03B2201/07 ,  C03B2201/12

    摘要： Glass is produced by depositing presintering composition on a preform set into move in front of a plasma torch which moves back and forth substantially parallel to a longitudinal direction of the preform, a first feed duct feeds the plasma with grains of the presintering composition while optionally a second feed duct feeds the plasma with a fluorine or chlorine compound, preferably a fluorine compound, mixed with a carrier gas, whereby the presintering composition consists of granules of metal oxides or metalloid oxides of a pyrogenic silicon dioxide powder with a BET surface area of 30 to 90 m2/g, a DBP index of 80 or less, a mean aggregate area of less than 25000 nm2 and a mean aggregate circumference of less than 1000 nm, wherein at least 70% of the aggregates have a circumference of less than 1300 nm or a high-purity pyrogenically prepared silicon dioxide having metal contents of less than 0.2 μg/g, which is prepared by reacting a silicon tetrachloride having a metal content of less than 30 ppb by means of flame hydrolysis.

    摘要翻译： 玻璃是通过将预烧结组合物沉积在等离子体焰炬之前移动的预成型体上制造的，所述等离子体焰炬基本上平行于预成型件的纵向方向前后移动，第一进料管将预烧结组合物的颗粒进料到等离子体， 第二进料管将等离子体与载体气体混合的氟或氯化合物，优选氟化合物进料，其中预烧结组合物由BET表面积为30的热解二氧化硅粉末的金属氧化物或准金属氧化物颗粒组成 至90m 2 / g，DBP指数为80以下，平均聚集面积小于25000nm 2，平均聚集体周长小于1000nm，其中至少70％的聚集体具有小于1300nm的圆周 或金属含量小于0.2mug / g的高纯度热解法制备的二氧化硅，其通过使金属含量为1的四氯化硅 通过火焰水解30埃以上。

    Preform for producing an optical fiber and method therefor
    7.
    发明申请
    Preform for producing an optical fiber and method therefor 审中-公开
    用于生产光纤的预制件及其方法

    公开(公告)号：US20040065118A1

    公开(公告)日：2004-04-08

    申请号：US10603533

    申请日：2003-06-25

    发明人： Dahv A. V. Kliner ,  Jeffery P. Koplow

    IPC分类号： C03B037/075 ,  C03B037/15

    CPC分类号： C03B37/0279 ,  C03B19/106 ,  C03B37/01217 ,  C03B37/0122 ,  C03B37/01225 ,  C03B37/01274 ,  C03B37/01297 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2203/30 ,  C03B2203/42 ,  H01S3/06716

    摘要： The present invention provides a simple method for fabricating fiber-optic glass preforms having complex refractive index configurations and/or dopant distributions in a radial direction with a high degree of accuracy and precision. The method teaches bundling together a plurality of glass rods of specific physical, chemical, or optical properties and wherein the rod bundle is fused in a manner that maintains the cross-sectional composition and refractive-index profiles established by the position of the rods.

    摘要翻译： 本发明提供了一种制造具有高精度和精确度的径向复合折射率构型和/或掺杂剂分布的光纤玻璃预制件的简单方法。 该方法教导将具有特定物理，化学或光学性质的多个玻璃棒捆绑在一起，并且其中杆束以保持由杆的位置确定的横截面组成和折射率分布的方式熔合。

    Laser initiated chain reactions for producing a sintered product
    9.
    发明授权
    Laser initiated chain reactions for producing a sintered product 失效
    用于生产烧结产品的激光引发链式反应

    公开(公告)号：US4778500A

    公开(公告)日：1988-10-18

    申请号：US84049

    申请日：1987-08-11

    申请人： Avigdor M. Ronn ,  Jaime Nieman

    发明人： Avigdor M. Ronn ,  Jaime Nieman

    IPC分类号： C03B37/018 ,  B01J3/08 ,  C03B8/04 ,  C03B19/10 ,  C03B19/14 ,  C03B37/014 ,  C04B35/14 ,  C04B35/645 ,  C06B43/00 ,  C03B37/08 ,  B01J19/12

    CPC分类号： C03B19/106 ,  B01J3/08 ,  C03B19/14 ,  C03B19/1415 ,  C03B37/014 ,  C03B37/01413 ,  C04B35/14 ,  C04B35/645 ,  C06B43/00 ,  C03B2201/12

    摘要： A laser initiated process generates a shock wave of sufficient strength to produce a sintered product. The sintered product is prepared from at least a fuel and an oxidizer that will sustain an explosion in a reaction vessel. The explosion is initiated by introducing a laser beam into the reaction vessel and a shock wave begins to propagate at the point where the explosion is initiated. A sintered product is prepared when the shock wave is sufficiently strong to densify the product. Although the reaction will proceed using a two-component fuel-oxidizer mixture, the reaction is especially useful for producing sintered doped or undoped silicon dioxide (SiO.sub.2) from a reaction mixture containing at least silicon tetrachloride, hydrogen and oxygen. The sintered SiO.sub.2 can be deposited on a deposition surface situated in the reaction vessel to produce a preform that can be processed to produce an optical fiber.

    摘要翻译： 激光引发的工艺产生足够强度的冲击波以产生烧结产品。 烧结产品由至少燃料和氧化剂制备，其将在反应容器中维持爆炸。 爆炸是通过将激光束引入反应容器而开始的，冲击波开始在爆炸发生的时刻传播。 当冲击波足够强以使产品致密化时，制备烧结产品。 虽然反应将使用双组分燃料 - 氧化剂混合物进行，但该反应特别适用于从至少含有四氯化硅，氢气和氧气的反应混合物中生产烧结掺杂或未掺杂的二氧化硅（SiO 2）。 烧结的SiO 2可以沉积在位于反应容器中的沉积表面上以产生可被加工以生产光纤的预成型件。