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    Reduction of optical fiber cane/preform deformation in consolidation
    2.
    发明申请
    Reduction of optical fiber cane/preform deformation in consolidation 有权
    缩小光纤手杖/预制棒的变形

    公开(公告)号：US20080271495A1

    公开(公告)日：2008-11-06

    申请号：US12072013

    申请日：2008-02-22

    申请人： Jitendra Balakrishnan ,  Samir Khanna ,  Chukwuemeka Benneth Onuh ,  Sonya Marie Raney ,  Pushkar Tandon ,  Dana Craig Bookbinder

    发明人： Jitendra Balakrishnan ,  Samir Khanna ,  Chukwuemeka Benneth Onuh ,  Sonya Marie Raney ,  Pushkar Tandon ,  Dana Craig Bookbinder

    IPC分类号： C03B37/01

    CPC分类号： C03B37/01853 ,  C03B37/0124 ,  C03B37/01453 ,  C03B37/01807 ,  C03B37/027 ,  C03B2201/04 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2207/90

    摘要： According to an embodiment of the invention a method of manufacturing optical fiber cane comprises the steps of: (i) providing a core rod manufactured of relatively low viscosity glass; (ii) depositing SiO2 based soot around the core rod to form a soot preform, the soot being of relatively high viscosity material such that the softening point of the low viscosity glass is at least 200° C. lower than the viscosity of the high viscosity outer core region; and (iii) consolidating the soot of the soot preform by exposure to hot zone at temperatures of 1000° C.-1600° C. The soot is consolidated by heating the outer portion of the soot preform at a relatively fast heating rate, the heating rate being sufficient to densify the soot, so as to render the densified material with enough rigidity to confine the heated core rod and to prevent the heated core rod from puddling.

    摘要翻译： 根据本发明的实施例，制造光纤手杖的方法包括以下步骤：（i）提供由相对低粘度玻璃制成的芯棒; （ii）在芯棒周围沉积基于SiO 2的烟炱以形成烟炱预制件，该烟炱是相对高粘度的材料，使得低粘度玻璃的软化点至少为200℃。 低于高粘度外芯区域的粘度; 并且（iii）通过在1000℃-1600℃的温度下暴露于热区来固化烟灰预制件的烟灰。通过以相对较快的加热速率加热烟灰预制件的外部部分来固化煤烟，加热 速率足以致密化烟灰，以使致密材料具有足够的刚性以限制加热的芯棒并防止加热的芯棒搅拌。

    Low bend loss optical fiber
    4.
    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
    5.
    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。

    LOW BEND LOSS OPTICAL FIBER
    6.
    发明申请
    LOW BEND LOSS OPTICAL FIBER 有权
    低弯损失光纤

    公开(公告)号：US20130136405A1

    公开(公告)日：2013-05-30

    申请号：US13485028

    申请日：2012-05-31

    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： G02B6/028

    CPC分类号： G02B6/028 ,  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 refractive index Δ1; a cladding region comprising (i) a first inner cladding region having an outer radius r2 10 microns and comprising a minimum refractive index Δ3, wherein said second cladding region has at least one region with a refractive index delta that becomes more negative with increasing radius; and (iii) an outer cladding region surrounding the inner cladding region and comprising 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微米和折射率Delta2和0.65 @ r1 / r2 @ 1的第一内包层区域; （ii）和具有外半径r3> 10微米并且包括最小折射率Delta3的第二内包层区域，其中所述第二包层区域具有至少一个具有随着半径增加而变得更负的折射率δ的区域; 和（iii）围绕内包层区域并包括折射率Delta4的外包层区域，其中Delta1> Delta2> Delta3，Delta3Δ4。

    APPARATUS FOR MIXING VAPORIZED PRECURSOR AND GAS AND METHOD THEREFOR
    7.
    发明申请
    APPARATUS FOR MIXING VAPORIZED PRECURSOR AND GAS AND METHOD THEREFOR 有权
    用于混合蒸发前体和气体及其方法的装置

    公开(公告)号：US20130011319A1

    公开(公告)日：2013-01-10

    申请号：US13176804

    申请日：2011-07-06

    申请人： Lewis A. Bernstein ,  Dana Craig Bookbinder ,  Jason A. Dillard ,  Jennifer L. Porter ,  Balram Suman ,  Pushkar Tandon

    发明人： Lewis A. Bernstein ,  Dana Craig Bookbinder ,  Jason A. Dillard ,  Jennifer L. Porter ,  Balram Suman ,  Pushkar Tandon

    IPC分类号： C01B33/12 ,  B01J19/00

    CPC分类号： C01B33/183 ,  B01J12/00 ,  C03B37/01413 ,  C03B2207/42 ,  C03B2207/46

    摘要： An apparatus for mixing a vaporized precursor with a gas for producing silica particles is provided. The apparatus includes a mixer housing, a precursor delivery chamber having an output in communication with the mixer housing for delivering a vaporized precursor in the mixer housing, and an oxidizing gas delivery chamber having an output in communication with the mixer housing for delivering an oxidizing gas to be mixed with the vaporized precursor. The apparatus further includes a flashback member disposed within the mixer housing and between the output of the precursor delivery chamber and the output of the oxidizing gas delivery chamber. The flashback member is located at a minimum distance from the output of the oxidizing gas delivery chamber defined by Lminimum (cm)=0.453 U (Re)−0.5567, wherein U is the flow rate in cm/sec of precursor and Re is the flow Reynolds number. The flashback member may include a tapered surface on at least one side to reduce recirculation of vaporized gas.

    摘要翻译： 提供了一种用于混合蒸发的前体与用于生产二氧化硅颗粒的气体的装置。 该装置包括混合器壳体，前体输送室，其具有与混合器壳体连通的输出，用于将混合器壳体内的蒸发前体输送;以及氧化气体输送室，具有与混合器壳体连通的输出，用于输送氧化气体 与蒸发的前体混合。 该装置还包括设置在混合器壳体内并且在前体输送室的输出和氧化气体输送室的输出之间的回火构件。 回闪构件位于距离最小（cm）= 0.453U（Re）-0.5567所限定的氧化气体输送室的输出的最小距离处，其中U是前体的流速（cm / sec），Re是流量 雷诺数。 闪回构件可以在至少一侧上包括锥形表面以减少气化气体的再循环。

    Methods for making optical fiber preforms and microstructured optical fibers
    9.
    发明授权
    Methods for making optical fiber preforms and microstructured optical fibers 有权
    制造光纤预制棒和微结构光纤的方法

    公开(公告)号：US07921675B2

    公开(公告)日：2011-04-12

    申请号：US11985666

    申请日：2007-11-16

    申请人： Dana Craig Bookbinder ,  Robert Brett Desorcie ,  Pushkar Tandon

    发明人： Dana Craig Bookbinder ,  Robert Brett Desorcie ,  Pushkar Tandon

    IPC分类号： C03B37/018

    CPC分类号： C03B37/01853 ,  C03B2203/14 ,  C03B2203/42 ,  G02B6/02333 ,  G02B6/02357

    摘要： A method of making an optical fiber preform includes depositing silica glass soot on the inside of a substrate tube via a chemical vapor deposition operation. The silica glass soot is consolidated into silica glass under controlled conditions such that the consolidated silica glass on the interior of the substrate tube contains a non-periodic array of gaseous voids in a cladding region of the optical fiber preform. The optical fiber preform may be used to produce an optical fiber having a core and a cladding containing voids formed from the gaseous voids of the cladding region of the optical fiber preform. The core of the optical fiber has a first index of refraction and the cladding has a second index of refraction less than that of the core.

    摘要翻译： 制造光纤预制棒的方法包括通过化学气相沉积操作在基底管的内部沉积二氧化硅玻璃烟炱。 石英玻璃烟灰在受控条件下固结到石英玻璃中，使得衬底管内部的固结石英玻璃在光纤预制棒的包层区域中含有非周期性的气体空隙阵列。 光纤预制件可用于制造具有芯和包层的光纤，该光纤包含由光纤预型件的包层区域的气体空隙形成的空隙。 光纤的核心具有第一折射率，并且包层具有小于芯的折射率的第二折射率。