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    Rit method of making optical fiber having depressed index core region
    11.
    发明授权
    Rit method of making optical fiber having depressed index core region 失效
    制造具有凹陷指数核心区域的光纤的Rit方法

    公开(公告)号：US06422042B1

    公开(公告)日：2002-07-23

    申请号：US09256248

    申请日：1999-02-23

    Applicant: George F. Berkey

    Inventor： George F. Berkey

    IPC: C03B37027

    CPC classification number: G02B6/03627 ,  C03B37/01211 ,  C03B37/01245 ,  C03B37/01248 ,  C03B37/01453 ,  C03B37/01473 ,  C03B37/01486 ,  C03B37/01493 ,  C03B37/01869 ,  C03B37/01884 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/31 ,  C03B2203/22 ,  C03B2203/36 ,  G02B6/02261 ,  G02B6/0281 ,  G02B6/03644

    Abstract: Disclosed is a method of making an optical fiber preform having at least one annular region of depressed refractive index. A tube of silica doped with fluorine and/or boron is overclad with silica soot. A core rod is inserted into the overclad tube and the resultant assembly is heated while chlorine flows between the tube and the core rod to clean the adjacent surfaces. When the soot sinters, the tube collapses onto and fuses to the rod. The resultant tubular structure is formed into an optical fiber which exhibits low attenuation as a result of the low seed count at the interface between the inner core and the region that is doped with florine and/or boron.

    Abstract translation: 公开了制造具有至少一个折射率低的环形区域的光纤预制件的方法。 掺有氟和/或硼的二氧化硅管用二氧化硅烟灰包覆。 将芯棒插入外包层管中，并且所得组件被加热，同时氯在管和芯棒之间流动以清洁相邻表面。 当烟灰烧结时，管塌陷并熔化到杆上。 所得的管状结构形成为由于在内核和掺杂有氟和/或硼的区域之间的界面处的低种子计数而显示出低衰减的光纤。

    Method for making index-profiled optical device
    14.
    发明授权
    Method for making index-profiled optical device 失效
    制造折射率光学装置的方法

    公开(公告)号：US4620861A

    公开(公告)日：1986-11-04

    申请号：US794833

    申请日：1985-11-04

    Applicant: George E. Berkey

    Inventor： George E. Berkey

    IPC: C03B8/04 ,  C03B37/014 ,  G02B6/00 ,  C03C25/02 ,  C03B37/023

    CPC classification number: C03B37/01446 ,  C03B37/01453 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/42 ,  C03B2201/54 ,  C03B2203/22 ,  Y10S65/16

    Abstract: Glass preforms for optical fibers or the like having refractive index profiles which vary in stepped or graded fashion across the preform, are made from porous glass preforms by introducing a first dopant into the porous preform during manufacture, partially sintering the preform to selectively modify the internal surface area thereof, introducing a second vapor-infusible dopant into the selectively sintered preform to cause selective doping of the porous glass, and then consolidating the resulting doped preform to clear glass.

    Abstract translation: 用于具有折射率分布的折射率分布的玻璃预成型件在预制件中以阶梯或梯度方式变化，由多孔玻璃预制件制成，通过在制造期间将第一掺杂剂引入多孔预制件中，部分地烧结预成型件以选择性地修饰内部 将第二蒸气不可渗透的掺杂剂引入选择性烧结的预制件中以引起多孔玻璃的选择性掺杂，然后将所得到的掺杂预成型件固结成透明玻璃。

    Doped glass and process for making
    15.
    发明授权
    Doped glass and process for making 失效
    掺杂玻璃和制造工艺

    公开(公告)号：US4557561A

    公开(公告)日：1985-12-10

    申请号：US476571

    申请日：1983-03-18

    Applicant: Hartmut Schneider ,  Egon Lebetzki

    Inventor： Hartmut Schneider ,  Egon Lebetzki

    IPC: C03B8/00 ,  C03B20/00 ,  C03B37/018 ,  C03C3/06 ,  C03C3/253 ,  C03C13/04 ,  G02B6/00 ,  C03B37/025

    CPC classification number: C03C13/045 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/14 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/34 ,  C03B2201/40 ,  Y10S65/16

    Abstract: Technique for making glass having a predetermined refractive index profile using fluorine doping and fluorine etching. A substrate glass body is coated with a plurality of successively applied vapor deposited glass layers wherein each succeeding layer is built with a larger quantity of fluorine than the adjacent preceding layer. The amount of the doping in each layer is such as to achieve the desired refractive index profile. Fluorine etching is employed to provide a uniform core before the glass body is heat fused into a rod-like structure suitable for the preparation of light waveguides for use in optical communications technology.

    Abstract translation: 使用氟掺杂和氟蚀刻制造具有预定折射率分布的玻璃的技术。 衬底玻璃体涂覆有多个连续施加的气相沉积玻璃层，其中每个后续层被构建为具有比相邻的前一层更大量的氟。 每个层中的掺杂量可达到所需的折射率分布。 在将玻璃体热熔融成适于制备用于光通信技术的光波导的棒状结构之前，使用氟蚀刻来提供均匀的芯。

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