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    METHOD OF MANUFACTURING OPTICAL FIBER WITH SELECTED DRAW TENSION
    41.
    发明申请
    METHOD OF MANUFACTURING OPTICAL FIBER WITH SELECTED DRAW TENSION 有权
    制造具有选择拉伸张力的光纤的方法

    公开(公告)号：US20120125053A1

    公开(公告)日：2012-05-24

    申请号：US12951175

    申请日：2010-11-22

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

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

    IPC分类号： C03B37/012

    CPC分类号： C03B37/0253 ,  C03B37/027 ,  C03B2201/12 ,  C03B2201/31 ,  C03B2203/23 ,  C03B2203/26

    摘要： A method of manufacturing an optical fiber includes providing a preform in a furnace, and drawing a plurality of optical fibers from the preform at a plurality of different draw tensions. A bandwidth characteristic of each of the optical fiber is drawn at the different draw tensions is measured. A draw tension setpoint is selected based on the measured bandwidth characteristic of each optical fiber and the draw tension is adjusted to the selected draw tension setpoint. The method further includes drawing from the preform a tuned optical fiber at the selected draw tension setpoint which provides peak bandwidth.

    摘要翻译： 制造光纤的方法包括在炉中提供预制件，并且以多种不同的拉伸张力从预成型件拉制多根光纤。 每个光纤的带宽特性被绘制在不同的拉伸张力下。 基于每个光纤的测量带宽特性选择拉伸张力设定点，并将拉伸张力调整到所选拉伸张力设定点。 该方法还包括从所述预成型件中抽出所选择的拉伸张力设定点的调谐光纤，其提供峰值带宽。

    LARGE EFFECTIVE AREA OPTICAL FIBER WITH LOW BEND LOSS
    42.
    发明申请
    LARGE EFFECTIVE AREA OPTICAL FIBER WITH LOW BEND LOSS 有权
    具有低弯曲损耗的大型有效区域光纤

    公开(公告)号：US20120106909A1

    公开(公告)日：2012-05-03

    申请号：US12915388

    申请日：2010-10-29

    申请人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

    发明人： Scott Robertson Bickham ,  Dana Craig Bookbinder ,  Ming-Jun Li ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

    IPC分类号： G02B6/028

    CPC分类号： G02B6/03683 ,  G02B6/02019

    摘要： An optical fiber includes a central glass core region comprising maximum refractive index delta percent Δ1, a first inner annular region surrounding said core comprising refractive index delta percent Δ2, a depressed annular region surrounding said inner annular region and comprising Δ3 and a third annular region surrounding the depressed annular region comprising refractive index delta percent Δ4; wherein Δ1MAX>Δ4>Δ2>Δ3. The difference between Δ4 and Δ2 is greater than 0.01% and profile volume, |V3| is at least 10%-μm2. The fibers exhibit an effective area at 1550 nm which is greater than 110 μm2.

    摘要翻译： 光纤包括包含最大折射率Δ百分比Dgr的中心玻璃芯区域; 1，围绕所述芯的第一内环形区域，包括折射率Δ百分比Dgr; 2，环绕所述内环形区域的凹陷环形区域，并且包括Dgr 3 围绕所述凹陷的环形区域的第三环形区域包括折射率Δ百分比Dgr; 4; 其中＆Dgr; 1MAX>＆Dgr; 4>＆Dgr; 2＆Dgr; 3。 ＆Dgr; 4和＆Dgr; 2之间的差异大于0.01％，配置文件卷| V3 | 至少为10％-μm2。 纤维在1550nm处表现出大于110μm2的有效面积。

    Particulate Filters And Methods Of Filtering Particulate Matter
    43.
    发明申请
    Particulate Filters And Methods Of Filtering Particulate Matter 有权
    颗粒过滤器和过滤颗粒物质的方法

    公开(公告)号：US20110048227A1

    公开(公告)日：2011-03-03

    申请号：US12604014

    申请日：2009-10-22

    申请人： Douglas Munroe Beall ,  Achim Karl-Erich Heibel ,  Pushkar Tandon

    发明人： Douglas Munroe Beall ,  Achim Karl-Erich Heibel ,  Pushkar Tandon

    IPC分类号： B01D46/46 ,  B01D46/00

    CPC分类号： B01D46/2474 ,  B01D46/2425 ,  B01D46/2451 ,  B01D46/2459 ,  B01D46/2466 ,  B01D46/247 ,  B01D2046/2492 ,  B01D2046/2496

    摘要： A particulate filter may comprise an inlet end, an outlet end, and a plurality of parallel channels disposed and configured to flow fluid from the inlet end to the outlet end, the channels being defined by a plurality of porous walls configured to trap particulate matter. The particulate filter may define at least one filtration region including a first group of channels and at least one bypass region including a second group of channels, wherein at least some of the channels in the first group of channels are plugged at an end thereof, wherein the channels in the second group of channels are unplugged, and wherein greater than or equal to about 70% of the plurality of parallel channels are plugged at an end thereof.

    摘要翻译： 微粒过滤器可以包括入口端，出口端和多个平行的通道，其布置和构造成将流体从入口端流出到出口端，通道被构造成捕获颗粒物质的多个多孔壁限定。 微粒过滤器可以限定至少一个包括第一组通道的过滤区域和至少一个包括第二组通道的旁路区域，其中第一组通道中的至少一些通道在其末端被堵塞，其中 第二组通道中的通道被拔出，并且其中大于或等于大约70％的多个并行通道在其末端被堵塞。

    Bend Resistant Multimode Optical Fiber
    44.
    发明申请
    Bend Resistant Multimode Optical Fiber 有权
    抗弯曲多模光纤

    公开(公告)号：US20100303428A1

    公开(公告)日：2010-12-02

    申请号：US12770250

    申请日：2010-04-29

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

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

    IPC分类号： G02B6/028

    CPC分类号： G02B6/0288 ,  G02B6/03627

    摘要： Bend resistant multimode optical fibers are disclosed herein. Multimode optical fibers disclosed herein comprise a core region and a cladding region surrounding and directly adjacent to the core region, the cladding region comprising a depressed-index annular region, wherein the inner boundary of said depressed index region is an extension of the graded index core, the depressed region having a moat volume greater than 105%-um2.

    摘要翻译： 本文公开了抗弯曲多模光纤。 本文公开的多模光纤包括围绕并直接邻近芯区域的芯区域和包层区域，所述包层区域包括凹陷折射率环形区域，其中所述凹陷折射率区域的内边界是渐变折射率核心的延伸 ，凹陷区域具有大于105％的槽口体积--2。

    Large Effective Area Fiber With GE-Free Core
    45.
    发明申请
    Large Effective Area Fiber With GE-Free Core 有权

    公开(公告)号：US20100195966A1

    公开(公告)日：2010-08-05

    申请号：US12696189

    申请日：2010-01-29

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

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

    IPC分类号： G02B6/036

    CPC分类号： C03C13/046 ,  G02B6/02019 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/03627 ,  G02B6/0365

    摘要： According to some embodiments an optical waveguide fiber comprises: (i) a Ge free core having an effective area of 90 μm2 to 160 μm2, at a 1550 nm wavelength, and α value 12≦α≦25, said core comprising: (a) a central core region extending radially outwardly from a centerline to a radius 0 μm≦r0≦2 μm, and having a relative refractive index percent profile Δ0(r) in % measured relative to pure silica, wherein −0.1%≦Δ0(r)≦0.1%, wherein the central core region has a maximum relative refractive index percent, Δ0MAX, (b) a first annular core region surrounding and directly adjacent to the central core region and extending to an outer radius r1, wherein 4.8 μm≦r1≦10 μm, and having a relative refractive index percent profile, Δ1(r) in % measured relative to pure silica, and a minimum relative refractive index, Δ2MIN, and the relative refractive index measured at a radius r=2.5 μm being: −0.15≦Δ1(r=2.5 μm)≦0, and Δ0MAX≧Δ1(r=2.5 μm); (c) a fluorine doped second annular region surrounding and directly adjacent to the first annular core region and extending to a radius 13 μm≦r2≦30 μm and having a negative relative refractive index percent profile, Δ2(r) in %, measured relative to pure silica, with a minimum relative refractive index percent Δ2MIN being: Δ2MIN≦Δ1(r=2.5 μm), and −0.7%≦Δ2MIN≦−0.28%; (ii) a cladding surrounding the core and having a relative refractive index percent Δc(r) in % measured relative to pure silica, and Δc(r)=Δ2MIN±0.3%; wherein the relative refractive index profile of the optical fiber is selected to provide attenuation of no more than 0.175 dB/km at the wavelength of 1550 nm.