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    Treatment of Silica Based Soot or an Article made of Silica Based Soot
    1.
    发明申请
    Treatment of Silica Based Soot or an Article made of Silica Based Soot 审中-公开
    二氧化硅烟炱或二氧化硅烟炱制品的处理

    公开(公告)号：US20120202674A1

    公开(公告)日：2012-08-09

    申请号：US13206004

    申请日：2011-08-09

    申请人： Nicolas LeBlond ,  Pushkar Tandon ,  Srinivas Vemury

    发明人： Nicolas LeBlond ,  Pushkar Tandon ,  Srinivas Vemury

    IPC分类号： C03C6/04

    CPC分类号： C03B19/1453 ,  C03B37/01282 ,  C03B37/01446

    摘要： One embodiment of the disclosure relates to a method of cleaning silica-based soot or an article made of silica-based soot, the method comprising the step of treating silica-based soot or the article made of silica-based soot with at least one of the following compounds: (i) a mixture of CO and Cl2 in a carrier gas such that the total concentration of CO and Cl2 in the mixture is greater than 10% (by volume, in carrier gas) and the ratio of CO:Cl2 is between 0.25 and 5; (ii) CCl4 in a carrier gas, such that concentration CCl4 is greater than 1% (by volume, in carrier gas). Preferably, the treatment by CCl4 is performed at temperatures between 600° C., and 850° C. Preferably, the treatment with the CO and Cl mixture is performed at temperatures between 900° C. and 1200° C. The carrier gas may be, for example, He, Ar, N2, or the combination thereof.

    摘要翻译： 本公开的一个实施方案涉及一种清洁二氧化硅基烟灰或由二氧化硅基烟灰制成的制品的方法，所述方法包括以下步骤：用二氧化硅基烟灰或由二氧化硅基烟灰制成的制品用至少一种 以下化合物：（i）载气中CO和Cl 2的混合物，使得混合物中CO和Cl2的总浓度大于载体气体中的10体积％（体积），CO：Cl 2的比例为 介于0.25和5之间; （ii）载气中的CCl 4，使得浓度CCl4大于1％（以体积计，在载气中）。 优选地，通过CCl 4的处理在600℃和850℃之间的温度下进行。优选地，用CO和Cl混合物的处理在900℃和1200℃之间的温度下进行。载气可以是 ，例如He，Ar，N2，或其组合。

    Treatment of silica based soot or an article made of silica based soot
    2.
    发明授权
    Treatment of silica based soot or an article made of silica based soot 有权

    公开(公告)号：US10829403B2

    公开(公告)日：2020-11-10

    申请号：US13206004

    申请日：2011-08-09

    申请人： Nicolas LeBlond ,  Pushkar Tandon ,  Srinivas Vemury

    发明人： Nicolas LeBlond ,  Pushkar Tandon ,  Srinivas Vemury

    IPC分类号： C03B37/01 ,  C03B19/14 ,  C03B37/012 ,  C03B37/014

    摘要： One embodiment of the disclosure relates to a method of cleaning silica-based soot or an article made of silica-based soot, the method comprising the step of treating silica-based soot or the article made of silica-based soot with at least one of the following compounds: (i) a mixture of CO and Cl2 in a carrier gas such that the total concentration of CO and Cl2 in the mixture is greater than 10% (by volume, in carrier gas) and the ratio of CO:Cl2 is between 0.25 and 5; (ii) CCl4 in a carrier gas, such that concentration CCl4 is greater than 1% (by volume, in carrier gas). Preferably, the treatment by CCl4 is performed at temperatures between 600° C., and 850° C. Preferably, the treatment with the CO and Cl mixture is performed at temperatures between 900° C. and 1200° C. The carrier gas may be, for example, He, Ar, N2, or the combination thereof.

    Methods and Apparatuses for Reducing Gelation of Glass Precursor Materials During Vaporization
    3.
    发明申请
    Methods and Apparatuses for Reducing Gelation of Glass Precursor Materials During Vaporization 审中-公开
    用于在蒸发期间还原玻璃前体材料的凝胶化的方法和装置

    公开(公告)号：US20120276291A1

    公开(公告)日：2012-11-01

    申请号：US13096264

    申请日：2011-04-28

    申请人： Chester D. Bird ,  Dale Robert Powers ,  Pushkar Tandon ,  Srinivas Vemury

    发明人： Chester D. Bird ,  Dale Robert Powers ,  Pushkar Tandon ,  Srinivas Vemury

    IPC分类号： C23C16/448 ,  C23C16/52

    CPC分类号： C03B37/01413 ,  C03B37/01807 ,  C03B2207/32 ,  C03B2207/34 ,  C03B2207/85 ,  C03B2207/87 ,  C03B2207/88

    摘要： Methods and apparatuses for vaporizing liquid precursor material for use in a vapor deposition process are disclosed. The method for vaporizing liquid precursor material includes introducing a flow of liquid precursor material into an expansion chamber and directing the flow of liquid precursor material towards a wall of the chamber. The wall of the chamber is heated to a temperature sufficient to vaporize a first portion of the flow of liquid precursor material while a second portion of the flow of liquid precursor material remains in a liquid state and a third portion of the liquid precursor material is formed into gel. The expansion chamber is continuously drained as the flow of liquid precursor material is introduced into the expansion chamber. The chamber is heated to a temperature to produce a sufficient amount of the second portion of the liquid precursor material to flush the gel from the chamber.

    摘要翻译： 公开了用于蒸发用于气相沉积工艺的液体前体材料的方法和装置。 用于蒸发液体前体材料的方法包括将液体前体材料流引入膨胀室并将液体前体材料流引向腔室的壁。 将室的壁加热到足以蒸发液体前体材料流的第一部分的温度，同时液体前体材料流的第二部分保持液体状态，并且形成第三部分液体前体材料 变成凝胶。 随着液体前体材料的流动被引入到膨胀室中，膨胀室被连续地排出。 将该室加热到一定温度以产生足够量的液体前体材料的第二部分以从该室冲洗凝胶。

    METHODS FOR FORMING OPTICAL FIBER PREFORMS WITH SELECTIVE DIFFUSION LAYERS
    8.
    发明申请
    METHODS FOR FORMING OPTICAL FIBER PREFORMS WITH SELECTIVE DIFFUSION LAYERS 审中-公开
    用选择性扩散层形成光纤预制件的方法

    公开(公告)号：US20140174133A1

    公开(公告)日：2014-06-26

    申请号：US14107259

    申请日：2013-12-16

    申请人： Amanda Lee Billings ,  Liam Ruan de Paor ,  Robert Brett Desorcie ,  Robert Arnold Knowlton ,  Pushkar Tandon

    发明人： Amanda Lee Billings ,  Liam Ruan de Paor ,  Robert Brett Desorcie ,  Robert Arnold Knowlton ,  Pushkar Tandon

    IPC分类号： C03B37/014 ,  G02B6/036

    CPC分类号： C03B37/01446 ,  C03B37/014 ,  C03B37/01413 ,  C03B37/01453 ,  C03B2201/08 ,  C03B2201/20 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/32 ,  C03B2201/40 ,  C03B2201/42 ,  C03B2203/22 ,  C03B2207/36 ,  G02B6/036

    摘要： Methods for forming optical fiber preforms are disclosed. According to one embodiment, a method for forming an optical fiber preform includes forming a preform core portion from silica-based glass soot. The silica-based glass soot may include at least one dopant species for altering an index of refraction of the preform core portion. A selective diffusion layer of silica-based glass soot may be formed around the preform core portion to form a soot preform. The selective diffusion layer may have an as-formed density greater than the density of the preform core portion. A diffusing species may be diffused through the selective diffusion layer into the preform core portion. The soot preform may be sintered such that the selective diffusion layer has a barrier density which is greater than the as-formed density and the selective diffusion layer prevents diffusion of the at least one dopant species through the selective diffusion layer.

    摘要翻译： 公开了形成光纤预制棒的方法。 根据一个实施例，用于形成光纤预制棒的方法包括从二氧化硅基玻璃烟炱形成预制芯部分。 二氧化硅基玻璃烟炱可以包括至少一种用于改变预制核心部分的折射率的掺杂物种类。 二氧化硅基玻璃烟炱的选择性扩散层可以在预制核心部分周围形成，以形成烟炱预制件。 选择性扩散层可以具有大于预制核心部分的密度的形成密度。 扩散物质可以通过选择性扩散层扩散到预制核心部分中。 烟炱预制件可以烧结，使得选择性扩散层具有大于形成密度的势垒密度，并且选择性扩散层防止至少一种掺杂剂物质通过选择性扩散层的扩散。

    Low bend loss optical fiber
    9.
    发明授权
    Low bend loss optical fiber 有权
    低弯曲损耗光纤

    公开(公告)号：US08666214B2

    公开(公告)日：2014-03-04

    申请号：US13680676

    申请日：2012-11-19

    申请人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

    发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

    IPC分类号： G02B6/02 ,  G02B6/028 ,  G02B6/032 ,  G02B6/10

    CPC分类号： G02B6/028 ,  G02B6/02266 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/0285 ,  G02B6/0286 ,  G02B6/03627 ,  G02B6/03638 ,  G02B6/0365

    摘要： One embodiment of a single mode optical fiber includes: a graded index central core region having outer radius r1 and relative refractive index Δ1; a cladding region comprising (i) a first inner cladding region having an outer radius r2 10 microns and comprising a minimum relative refractive index Δ3, wherein said second inner cladding region has at least one region with a relative refractive index delta that becomes more negative with increasing radius; and (iii) an outer cladding region surrounding the second inner cladding region and comprising relative refractive index Δ4, wherein Δ1>Δ2>Δ3, Δ3

    摘要翻译： 单模光纤的一个实施例包括：具有外半径r1和相对折射率Delta1的渐变折射率中心纤芯区域; 包层区域，包括（i）具有外半径r2 <10微米和相对折射率Delta2和0.65 @ r1 / r2 @ 1的第一内包层区域; （ii）和具有外径r3> 10微米并且包括最小相对折射率Delta3的第二内包层区域（即，沟槽），其中所述第二内包层区域具有至少一个具有相对折射率Δδ的区域， 半径越来越大; 和（iii）围绕第二内包层区域并包括相对折射率Delta4的外包层区域，其中Delta1> Delta2> Delta3，Delta3Δ4。

    Bend loss resistant multi-mode fiber
    10.
    发明授权
    Bend loss resistant multi-mode fiber 有权
    弯曲损耗多模光纤

    公开(公告)号：US08588568B2

    公开(公告)日：2013-11-19

    申请号：US13289029

    申请日：2011-11-04

    申请人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

    发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Pushkar Tandon

    IPC分类号： G02B6/02

    CPC分类号： G02B6/0288 ,  G02B6/0281 ,  G02B6/03627

    摘要： A graded index multimode optical fiber comprising: (a) a silica core doped with germania, and at least one co-dopant, comprising one of P2O5 or F or B2O3, the core extending to outermost core radius, r1 and having a dual alpha, α1; (b) a low index inner cladding surrounding the core and off-set from said core; (c) an outer cladding surrounding and in contact with the inner cladding, such that at least the region of the inner cladding off-set from said core has a lower refractive index than the outer cladding. The center germania concentration at the centerline, CGe1, is greater than or equal to 0, and an outermost germania concentration in the core CGe2, at r1 is greater than or equal to 0. The core has a center co-dopant concentration at the centerline, Cc-d1, greater than or equal to 0, and an outermost co-dopant concentration Cc-d2, at r1, wherein Cc-d2 is greater than or equal to 0.

    摘要翻译： 一种分级折射率多模光纤，包括：（a）掺杂有氧化锗的二氧化硅芯，以及包含P2O5或F或B2O3之一的至少一种共掺杂物，所述芯延伸到最外芯半径r1并具有双重α， alpha1; （b）围绕所述芯并偏离所述芯的低折射率内包层; （c）包围并与内包层接触的外包层，使得至少从所述芯偏离的内包层的区域具有比外包层更低的折射率。 中心线CGe1处的中心锗浓度大于或等于0，核心CGe2在r1处的最外面的锗浓度大于或等于0.核心在中心线处具有中心共掺杂剂浓度 ，Cc-d1，大于或等于0，最外侧辅助掺杂浓度Cc-d2在r1处，其中Cc-d2大于或等于0。