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    Methods for making optical fiber preforms and microstructured optical fibers
    71.
    发明申请
    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：US20090126408A1

    公开(公告)日：2009-05-21

    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。

    Apparatus for mixing vaporized precursor and gas and method therefor
    72.
    发明授权
    Apparatus for mixing vaporized precursor and gas and method therefor 有权
    用于混合蒸发的前体和气体的装置及其方法

    公开(公告)号：US08840858B2

    公开(公告)日：2014-09-23

    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 ,  C03B37/014

    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。

    Microstructured optical fibers and methods
    73.
    发明申请
    Microstructured optical fibers and methods 有权
    微结构光纤和方法

    公开(公告)号：US20080276650A1

    公开(公告)日：2008-11-13

    申请号：US12151170

    申请日：2008-05-05

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

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

    IPC分类号： C03B37/018 ,  C03B37/075

    CPC分类号： C03B37/0142 ,  C03B37/01446 ,  C03B37/0146 ,  C03B37/01466 ,  C03B37/02781 ,  C03B2203/14 ,  C03B2203/42 ,  C03B2205/44 ,  C03B2205/72

    摘要： Method of making a microstructured optical fiber. Silica glass based soot is deposited on a substrate to form at least a portion of an optical fiber preform by traversing a soot deposition burner with respect to said substrate at a burner traverse rate greater than 3 cm/sec, thereby depositing a layer of soot having a thickness less than 20 microns for each of a plurality of burner passes. At least a portion of the soot preform is then consolidated inside a furnace to remove greater than 50 percent of the air trapped in said soot preform, said consolidating taking place in a gaseous atmosphere containing krypton, nitrogen, or mixtures thereof under conditions which are effective to trap a portion of said gaseous atmosphere in said preform during said consolidation step, thereby forming a consolidated preform which when viewed in cross section will exhibit at least 50 voids therein.

    摘要翻译： 制造微结构光纤的方法 基于二氧化硅玻璃的烟灰沉积在基底上以通过以大于3cm / sec的燃烧器横越速率相对于所述基底穿过烟灰沉积燃烧器而形成光纤预制棒的至少一部分，从而沉积具有 对于多个燃烧器通道中的每一个，厚度小于20微米。 然后将至少一部分烟灰预制件固结在炉内，以去除大于50％的所述烟灰预制件中的空气，所述固化在有效的条件下在含有氪，氮或其混合物的气体气氛中进行 以在所述固结步骤期间将所述气态气体的一部分捕获在所述预制件中，由此形成固结的预制件，当在横截面中观察时，其将呈现至少50个空隙。

    Reduction of optical fiber cane/preform deformation in consolidation
    76.
    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。

    Large effective area fiber
    78.
    发明申请
    Large effective area fiber 有权
    大面积纤维有效面积

    公开(公告)号：US20080279517A1

    公开(公告)日：2008-11-13

    申请号：US12151171

    申请日：2008-05-05

    申请人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Xin Chen ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Daniel Aloysius Nolan

    发明人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Xin Chen ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Daniel Aloysius Nolan

    IPC分类号： G02B6/028

    CPC分类号： G02B6/0365 ,  G02B6/02019

    摘要： An optical fiber according to an embodiment of the present invention comprises: a glass core extending from a centerline to a radius R1 wherein R1 is greater than about 5 μm; a glass cladding surrounding and in contact with the core, the cladding comprising: (i) a first annular region extending from the radius R1 to a radius R2, the first annular region comprising a radial width, W2=R2−R1, (ii) a second annular region extending from the radius R2 to a radius R3, and comprising a radial width, W3=R3−R2, and (iii) a third annular region surrounding the second annular region and extending from the radius R3 to an outermost glass radius R4; wherein the core comprises a maximum relative refractive index, Δ1MAX, relative to the third annular region, and wherein Δ1MAX is greater than about 0.1% and less than about 0.3%; the first annular region has a refractive index delta Δ2(r) is less than about 0.025%; wherein the second annular region comprises a minimum relative refractive index, Δ3MIN, relative to the third annular region;wherein Δ1MAX>Δ2MAX>Δ3MIN, and Δ2MIN>Δ3MIN

    摘要翻译： 根据本发明实施例的光纤包括：从中心线延伸到半径R 1的玻璃芯，其中R 1>大于5μm; 围绕并与芯接触的玻璃包层，所述包层包括：（i）从半径R 1> 1半径R 2> 2延伸的第一环形区域，第一 包括径向宽度的第二环形区域，（ii）从半径R < SUB> 2 到半径R 3 3，并且包括径向宽度，W 3 3 = R 3→N < 2，和（iii）围绕第二环形区域并从半径R 3 3延伸到最外侧玻璃半径R 4的第三环形区域; 其中所述芯包括相对于所述第三环形区域的最大相对折射率，Δ1MAX1，并且其中Δ1MAX1大于约0.1％且小于约0.3％ ; 第一环形区域具有小于约0.025％的折射率差ΔΔ2（r）; 其中所述第二环形区域包括相对于所述第三环形区域的最小相对折射率，Δ3 NIN; 其中Delta 1MAX 增量2MAX 三角洲3MIN和三角洲2MIN 三角洲3IN > <0; 并且其中所述芯和所述包层提供具有小于1500nm的电缆截止的光纤，并且在1550nm处的有效面积大于95μm2，并且在20℃下的弯曲损耗为<= 0.5dB / mm直径心轴。