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    Preparation of fluoride glass optical preforms and fibers
    32.
    发明授权
    Preparation of fluoride glass optical preforms and fibers 失效
    氟化玻璃光学预成型件和纤维的制备

    公开(公告)号：US5026409A

    公开(公告)日：1991-06-25

    申请号：US292792

    申请日：1989-01-03

    Applicant: M. Robinson ,  Antonio C. Pastor ,  Ricardo C. Pastor

    Inventor： M. Robinson ,  Antonio C. Pastor ,  Ricardo C. Pastor

    IPC: C03B37/012

    CPC classification number: C03B37/01228 ,  C03B37/01211 ,  C03B37/01248 ,  C03B37/01268 ,  C03B37/02754 ,  C03B2201/82 ,  Y10S65/16 ,  Y10S65/90

    Abstract: A preform for preparation of optical fibers is prepared by inserting a rod of a higher index of refraction fluoride glass into the bore of a hollow cylinder of a lower index of refraction fluoride glass fiber. This preform precursor is processed to collapse the hollow cylinder inwardly to form a composite preform having a high-refractive index core and a low-refractive index casing. The preparing of the glasses and processing to a preform are accomplished in a reactive environment that reacts and removes oxygen and hydrogen containing species from the glass, the reactive environment being, for example, Cl.sub.2, CCl.sub.4, SF.sub.6, BF.sub.3, CF.sub.4, or the decomposition products of a liquefied solid fluorocarbon. The preform is then drawn to an optical fiber.

    Abstract translation: 通过将较高折射率的氟化玻璃的棒插入到较低折射率的氟化物玻璃纤维的中空圆筒的孔中来制备用于制备光纤的预制棒。 处理该预成型体前体以向内折叠中空圆筒，以形成具有高折射率芯和低折射率套管的复合预制件。 玻璃的制备和预处理的处理在反应环境中完成，其反应并从玻璃中除去含氧和氢的物质，反应环境为例如Cl 2，CCl 4，SF 6，BF 3，CF 4或分解 液化固体碳氟化合物的产品。 然后将预制件拉制成光纤。

    Method for rapid preparation of halide glasses
    35.
    发明授权
    Method for rapid preparation of halide glasses 失效
    快速制备卤化物玻璃的方法

    公开(公告)号：US4872894A

    公开(公告)日：1989-10-10

    申请号：US202659

    申请日：1988-05-26

    Applicant: Joseph J. Hutta

    Inventor： Joseph J. Hutta

    IPC: C03B5/02 ,  C03B5/16 ,  C03C3/32

    CPC classification number: C03C3/325 ,  C03B5/021 ,  C03B5/16 ,  C03B2201/82 ,  Y10S501/904 ,  Y10S65/16

    Abstract: An improved method of rapidly forming halide glass wherein the heating and cooling schedule has two phases of heating and cooling. This improved method substantially limits the loss of volatile components because of the significantly shortened interval of time at the elevated melting temperatures. The average time under heating is about 80 minutes. Cooling is as rapid as possible. The homogenization occurs above 800.degree. C. for about 20 minutes.

    Abstract translation: 快速形成卤化物玻璃的改进方法，其中加热和冷却方案具有两个阶段的加热和冷却。 这种改进的方法基本上限制了挥发性组分的损失，因为在升高的熔融温度下时间间隔显着缩短。 平均加热时间约为80分钟。 冷却尽可能快。 均质化发生在800℃以上约20分钟。

    Method for the manufacture of a preform for drawing glass fibers particularly infrared light waveguides for optical communications technology
    37.
    发明授权
    Method for the manufacture of a preform for drawing glass fibers particularly infrared light waveguides for optical communications technology 失效
    用于制造玻璃纤维预制件的方法，特别是用于光通信技术的红外光波导

    公开(公告)号：US4842627A

    公开(公告)日：1989-06-27

    申请号：US210192

    申请日：1988-06-20

    Applicant: Hartmut Schneider ,  Achim Schoberth

    Inventor： Hartmut Schneider ,  Achim Schoberth

    IPC: G02B6/00 ,  C03B20/00 ,  C03B37/012 ,  C03C13/04 ,  C03C15/02

    CPC classification number: C03B37/01277 ,  C03B37/01265 ,  C03B37/01268 ,  C03C13/042 ,  C03C15/02 ,  C03B2201/82 ,  Y10S65/16

    Abstract: A method for the manufacture of a preform of barium containing heavy metal fluoride glass comprising a core and a jacket for drawing infrared light waveguides for optical communications technology by casting molten glass onto a predetermined body of solid glass. Hitherto, such a method was executed such that molten core glass was cast into a tube of jacket glass. In order to achieve thicker preforms, one proceeds such here that a solid row of the core glass is surrounded with molten jacket glass. The boundary surface between core and jacket of the generated preform can be improved in the method disclosed herein that the surface of the solid rod is etched before being surrounded with the jacket glass. A nearly perfect boundary surface is obtained by etching with a ZrOCl.sub.2 solution.

    Abstract translation: 一种制造包含重金属氟化物玻璃的钡预成型体的方法，其包括用于通过将熔融玻璃浇铸到预定固体玻璃体上的用于光通信技术的红外光波导的芯和外壳。 到目前为止，这样一种方法被执行，使得熔融的芯玻璃被浇铸到夹套玻璃管中。 为了实现较厚的预成型件，可以进行这样的处理，使得芯玻璃的实心线被熔融夹套玻璃包围。 在本文公开的方法中，可以改善所产生的预成型件的芯和护套之间的边界表面，在被夹套玻璃包围之前，将实心棒的表面进行蚀刻。 通过用ZrOCl 2溶液蚀刻获得几乎完美的边界表面。

    Ultra small core fiber with dispersion tailoring
    38.
    发明授权
    Ultra small core fiber with dispersion tailoring 有权
    超小芯纤维与分散裁剪

    公开(公告)号：US08824847B2

    公开(公告)日：2014-09-02

    申请号：US13915444

    申请日：2013-06-11

    Applicant: IMRA America, Inc.

    Inventor： Liang Dong ,  Brian Thomas ,  Libin Fu

    IPC: G02B6/02 ,  G02B6/036 ,  G02F1/365 ,  C03B37/012 ,  G02F1/39 ,  H01S3/00 ,  H01S3/067

    CPC classification number: G02F1/365 ,  C03B37/0122 ,  C03B2201/82 ,  C03B2201/86 ,  C03B2203/10 ,  C03B2203/14 ,  C03B2203/42 ,  C03B2205/08 ,  C03B2205/10 ,  G02B6/02214 ,  G02B6/02333 ,  G02B6/02357 ,  G02F1/395 ,  H01S3/0057 ,  H01S3/06729 ,  H01S3/06754

    Abstract: Various embodiments of optical fiber designs and fabrication processes for ultra small core fibers (USCF) are disclosed. In some embodiments, the USCF includes a core that is at least partially surrounded by a region comprising first features. The USCF further includes a second region at least partially surrounding the first region. The second region includes second features. In an embodiment, the first features are smaller than the second features, and the second features have a filling fraction greater than about 90 percent. The first features and/or the second features may include air holes. Embodiments of the USCF may provide dispersion tailoring. Embodiments of the USCF may be used with nonlinear optical devices configured to provide, for example, a frequency comb or a supercontinuum.

    Abstract translation: 公开了用于超小芯纤维（USCF）的光纤设计和制造工艺的各种实施例。 在一些实施例中，USCF包括至少部分地被包括第一特征的区域包围的芯。 USCF还包括至少部分围绕第一区域的第二区域。 第二个区域包括第二个特征。 在一个实施例中，第一特征小于第二特征，并且第二特征具有大于约90％的填充分数。 第一特征和/或第二特征可以包括气孔。 USCF的实施例可以提供色散调整。 USCF的实施例可以与被配置为提供例如频率梳或超连续谱的非线性光学装置一起使用。

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