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    Drying control chemical additives for rapid production of large sol-gel derived silicon, boron and sodium containing monoliths
    85.
    发明授权
    Drying control chemical additives for rapid production of large sol-gel derived silicon, boron and sodium containing monoliths 失效
    干燥控制化学添加剂用于快速生产大溶胶 - 凝胶衍生的硅，含硼和含钠的整料

    公开(公告)号：US4851150A

    公开(公告)日：1989-07-25

    申请号：US583741

    申请日：1984-02-27

    Applicant: Larry L. Hench ,  Gerard F. Orcel

    Inventor： Larry L. Hench ,  Gerard F. Orcel

    IPC: C03B19/12 ,  C03C1/00

    CPC classification number: C03C1/006 ,  C03B19/12 ,  C03B2201/10 ,  C03B2201/50

    Abstract: Large sol-gel derived silicon-containing monoliths are prepared with the use of drying control chemical additives selected from the group consisting of glycerol, formamide, oxalic acid and acids of the formula C.sub.n H.sub.2(n-1) O.sub.2 N to control the ultrastructure of the gel solid and pore phases. Gelation, aging, drying, and densification of the sol-gel derived monoliths may be performed rapidly in tens of hours instead of tens of days without cracking, final densification at temperature of 800.degree. C. to 1200.degree. C. or less being possible. The silicon-containing monolith comprises a ternary SiO.sub.2 --B.sub.2 O.sub.3 --Na.sub.2 O system.

    Abstract translation: 使用选自甘油，甲酰胺，草酸和式CnH 2（n-1）O 2 N的酸的干燥控制化学添加剂制备大溶胶 - 凝胶衍生的含硅整料，以控制凝胶的超微结构 固相和孔相。 溶胶 - 凝胶衍生的整料的凝胶化，老化，干燥和致密化可以在数十小时而不是数十天的时间内快速进行而不会开裂，最终在800℃至1200℃或更低的温度下进行致密化。 含硅整料包括三元SiO 2 -B 2 O 3 -Na 2 O体系。

    Method of making a glass body having a graded refractive index profile
    86.
    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。

    Method of fabricating high birefringence fibers
    87.
    发明授权
    Method of fabricating high birefringence fibers 失效
    制造高双折射纤维的方法

    公开(公告)号：US4529426A

    公开(公告)日：1985-07-16

    申请号：US516000

    申请日：1983-07-22

    Applicant: William Pleibel ,  Jay R. Simpson ,  Rogers H. Stolen

    Inventor： William Pleibel ,  Jay R. Simpson ,  Rogers H. Stolen

    IPC: G02B6/00 ,  C03B37/012 ,  C03C13/04 ,  G02B6/02 ,  G02B6/024 ,  G02B6/10 ,  C03B37/075

    CPC classification number: G02B6/105 ,  C03B37/01217 ,  C03B37/01225 ,  C03C13/04 ,  C03C13/045 ,  C03B2201/02 ,  C03B2201/10 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/02 ,  C03B2203/04 ,  C03B2203/22 ,  C03B2203/30

    Abstract: The present invention relates to a technique for producing polarization-preserving and single polarization optical fibers. As disclosed, high birefringence is introduced into the preform by deforming the fiber preform such that a cladding layer becomes flat and highly conformable, while the core remains hard and substantially round. In particular, a cladding layer with a relatively low melting point is utilized such that when the preform is heated the cladding becomes liquified while the core remains solid. The preform may then be deformed so that the cladding layer is substantially flattened. Standard drawing techniques may then be utilized to form polarization-preserving fibers and single polarization fibers from the preform.

    Abstract translation: 本发明涉及一种用于制造偏振光保护和单偏振光纤的技术。 如所公开的那样，通过使纤维预成型件变形使得包层变得平坦并高度贴合，同时核保持坚硬且基本上圆形，将高双折射率引入预成型体。 特别地，利用具有相对较低熔点的包覆层，使得当预制件被加热时，包层变得液化，同时核保持固体。 然后可以使预成型件变形，使得包层基本上变平。 然后可以利用标准绘制技术从预制件形成偏振保留纤维和单极化纤维。

    Graded optical waveguides
    89.
    发明授权
    Graded optical waveguides 失效
    梯度光波导

    公开(公告)号：US4423925A

    公开(公告)日：1984-01-03

    申请号：US287703

    申请日：1981-07-28

    Applicant: Franklin W. Dabby ,  Ronald B. Chesler

    Inventor： Franklin W. Dabby ,  Ronald B. Chesler

    IPC: C03B37/012 ,  C03B37/014 ,  G02B5/172

    CPC classification number: C03B37/01205 ,  C03B37/01466 ,  C03B37/01493 ,  C03B2201/10 ,  C03B2203/24

    Abstract: A process for preparing a glass rod having a graded refractive index for use as the start rod in the production of optical waveguides is disclosed. The process comprises depositing and sintering borosilicate particles on a glass rod to form a rod having a larger diameter than the original fused silica rod and drawing this rod to obtain a start rod having the same diameter as the original glass rod but exhibiting a partially radially graded refractive index. Optical waveguides prepared from such graded start rods have a more uniformly graded radial index of refraction profile.

    Abstract translation: 公开了一种制备具有渐变折射率的玻璃棒的方法，用于制造光波导的起始杆。 该方法包括将硼硅酸盐颗粒沉积并烧结在玻璃棒上以形成具有比原始熔融石英棒更大直径的棒，并拉伸该棒以获得具有与原始玻璃棒相同直径的起始棒，但呈现部分径向分级 折射率。 由这种分级启动棒制备的光波导具有更均匀分级的径向折射率分布。

    Method for producing a strengthened glass structural member
    90.
    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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