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    Method of making a glass body having a graded refractive index profile
    94.
    发明授权
    Method of making a glass body having a graded refractive index profile 失效
    制造具有渐变折射率分布的玻璃体的方法

    公开(公告)号：US4812153A

    公开(公告)日：1989-03-14

    申请号：US2731

    申请日：1987-01-12

    Applicant: Matthew J. Andrejco ,  John B. MacChesney

    Inventor： Matthew J. Andrejco ,  John B. MacChesney

    IPC: C03B37/014 ,  C03C25/02

    CPC classification number: C03B37/014 ,  C03B37/01446 ,  C03B2201/10 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/50 ,  C03B2201/54 ,  C03B2203/22 ,  Y10S65/90

    Abstract: A glass body having a graded (substantially Gaussian) index profile is produced by a process that comprises providing a doped porous body (e.g., having a uniform dopant distribution), heat treating the porous body in a halogen-containing atmosphere, and consolidating the porous body into the glass body. The heat treatment removes a predetermined portion of the dopant from the porous body, such that the radial dopant profile in the glass body differs from the initial profile in the porous body, and such that the Gaussian index profile results. Exemplarily, the porous body is a uniformly germania-doped, VAD-produced, high-silica rod having radially decreasing density, and the heat treatment comprises an 8-hour densification soak at 1300.degree. C. in 20% Cl, 80% He. In a preferred embodiment, silica overcladding is deposited on a graded index core rod produced according to the invention, and fiber drawn from the resulting composite glass body.

    Abstract translation: 通过包括提供掺杂的多孔体（例如，具有均匀的掺杂剂分布）的方法，在含卤素的气氛中热处理多孔体，并且将多孔体 身体进入玻璃体。 热处理从多孔体中去除掺杂剂的预定部分，使得玻璃体中的径向掺杂剂分布与多孔体中的初始分布不同，并且导致高斯折射率分布。 示例性地，多孔体是均匀的掺杂氧化钆的VAD生产的，具有径向减小的密度的高硅石棒，并且热处理包括在20％Cl，80％He中在1300℃下8小时的致密化浸泡。 在优选的实施方案中，二氧化硅外包层沉积在根据本发明制备的渐变折射率芯棒上，并从所得到的复合玻璃体中拉出纤维。

    Doped glass and process for making
    95.
    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。

    Method of making solid preforms and optical fibers drawn therefrom
    97.
    发明授权
    Method of making solid preforms and optical fibers drawn therefrom 失效
    制作固体预成型件和从其中拉出的光纤的方法

    公开(公告)号：US4341441A

    公开(公告)日：1982-07-27

    申请号：US761746

    申请日：1977-01-24

    Applicant: Paul E. Lighty ,  Philip W. Black ,  John Irven

    Inventor： Paul E. Lighty ,  Philip W. Black ,  John Irven

    IPC: C03B37/018 ,  G02B6/00 ,  G02B6/44 ,  C03B37/025 ,  C03B37/075

    CPC classification number: C03B37/01861 ,  C03B37/01807 ,  C03B37/01853 ,  C03B37/01869 ,  G02B6/4492 ,  C03B2201/28 ,  C03B2201/30 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2205/16

    Abstract: An optical glass fiber is formed of an inner layer of germania doped glass within the bore of the outer cladding tube of silica. The tube with the higher index of refraction inner layer is rotated while being heated to collapse the bore to form an optical fiber preform. The preform is then drawn into fiber in a separate operation. A first silica layer can be deposited within the tube bore before the germania doped layer. The deposition of germania takes place under hydrogen free conditions. Appropriate heat treatment of the tube avoids excessive evaporation of germania and provides a graded transition of the refractive index in the boundary between core and cladding.

    Abstract translation: 光学玻璃纤维由二氧化硅外包层的孔内的由掺杂锗的玻璃的内层形成。 具有较高折射率内层的管旋转同时被加热以使孔塌缩以形成光纤预制件。 然后将预成型件在单独的操作中拉制成纤维。 第一二氧化硅层可以在氧化锗掺杂层之前沉积在管孔内。 铀的沉积在无氢条件下进行。 管的适当热处理避免了氧化锗的过度蒸发，并且提供了芯和包层之间的边界中折射率的渐变过渡。

    Method for producing a strengthened glass structural member
    98.
    发明授权
    Method for producing a strengthened glass structural member 失效
    强化玻璃结构件的制造方法

    公开(公告)号：US4313748A

    公开(公告)日：1982-02-02

    申请号：US123979

    申请日：1980-02-25

    Applicant: Pedro B. Macedo ,  Theodore A. Litovitz

    Inventor： Pedro B. Macedo ,  Theodore A. Litovitz

    IPC: C03B37/016 ,  C03C13/00 ,  C03C13/04 ,  C03C23/00 ,  G02B6/02 ,  G02B6/028 ,  C03B32/00 ,  C03C17/10 ,  C03C17/25

    CPC classification number: G02B6/02 ,  C03B37/016 ,  C03C13/00 ,  C03C13/046 ,  C03C23/0095 ,  C03B2201/10 ,  C03B2201/30 ,  C03B2201/32 ,  C03B2201/34 ,  C03B2201/50 ,  C03B2201/54 ,  Y02P40/57

    Abstract: The present invention relates to a new glass material applicable in those situations where thermal and/or mechanical shock would limit the use of other glass materials presently available. Dopants are deposited into the interconnected pores of a porous glass in a non-uniform manner such that upon consolidation and cooling the final article has its surface under compressive stress. Dopants may also be added to control color and other appearance features. A porous silicate glass is washed with sodium hydroxide followed by immersing the washed glass in a liquid solution of a dopant in a liquid solvent therefor to stuff the pores of the washed glass with the solution. Thereafter, the solvent is removed from the pores and the pores are collapsed by a heating step.

    Abstract translation: 本发明涉及适用于热和/或机械冲击将限制目前可获得的其它玻璃材料的使用的情况下的新型玻璃材料。 掺杂剂以不均匀的方式沉积在多孔玻璃的互连孔中，使得在固结和冷却时，最终制品的表面处于压应力下。 还可以添加掺杂剂以控制颜色和其它外观特征。 用氢氧化钠洗涤多孔硅酸盐玻璃，然后将洗涤后的玻璃浸在液体溶剂中的掺杂剂的液体溶液中，以用溶液填充经过洗涤的玻璃的孔。 此后，从孔中除去溶剂，通过加热步骤将孔压缩。

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