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    Low bend loss optical fiber
    2.
    发明授权
    Low bend loss optical fiber 有权
    低弯曲损耗光纤

    公开(公告)号：US08873917B2

    公开(公告)日：2014-10-28

    申请号：US13473654

    申请日：2012-05-17

    Applicant: Paul Andrew Chludzinski ,  Dominick Fiordimalva ,  Peter Gottfried Hebgen ,  Snigdharaj Kumar Mishra ,  Sonya Marie Raney

    Inventor： Paul Andrew Chludzinski ,  Dominick Fiordimalva ,  Peter Gottfried Hebgen ,  Snigdharaj Kumar Mishra ,  Sonya Marie Raney

    IPC: G02B6/036 ,  G02B6/02

    CPC classification number: G02B6/03672 ,  G02B6/02223

    Abstract: 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 the third annular region comprises chlorine an amount greater than 0.2 weight percent in a region which is within 5 microns from the depressed annular region, wherein Δ1MAX>Δ4>Δ2>Δ3. The difference between Δ4 and Δ2 is greater than 0.01 and profile volume, |V3| is at least 50% Δμm2.

    Abstract translation: 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，包围所述内环形区域的凹陷环形区域， 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; 其中所述第三环形区域在距离所述凹陷环形区域在5微米以内的区域中包含大于0.2重量％的量的氯，其中＆D 1; ＆Dgr; 4和＆Dgr; 2之间的区别大于0.01和配置文件卷| V3 | 至少为50％＆Dgr;μm2。

    Large effective area fiber with graded index GE-free core
    3.
    发明授权
    Large effective area fiber with graded index GE-free core 有权

    公开(公告)号：US07929818B1

    公开(公告)日：2011-04-19

    申请号：US12827333

    申请日：2010-06-30

    Applicant: Scott Robertson Bickham ,  Rostislav Radievich Khrapko ,  Snigdharaj Kumar Mishra

    Inventor： Scott Robertson Bickham ,  Rostislav Radievich Khrapko ,  Snigdharaj Kumar Mishra

    IPC: G02B6/028

    CPC classification number: G02B6/0365 ,  G02B6/02019 ,  G02B6/02266 ,  G02B6/02395 ,  G02B6/0286

    Abstract: According to some embodiments an optical waveguide fiber comprises (i) a Ge free core having an effective area of 100 μm2to 150 μm2, at 1550 nm wavelength, said core comprising: a) a central core region extending radially outwardly from a centerline to a radius r1, and having a relative refractive index percent profile Δ1(r) in % measured relative to pure silica, wherein −0.1%≦Δ1(r)≦0.12%, wherein the central core region has a maximum relative refractive index percent, Δ1MAX; (b) a first annular core region surrounding and directly adjacent to the central core region, having an α value 1.5≦α≦10, and extending to an outer radius r2, wherein 6 μm≦r2≦10 μm, and having a relative refractive index percent profile, Δ2(r) in % measured relative to pure silica, a minimum relative refractive index Δ2MIN, a maximum relative refractive index Δ2MAX and the relative refractive index measured at a radius r=2 μm, wherein 0.45≦Δ2≦0; −0.25≧Δ2MIN≧−0.45 and Δ1MAX≧Δ2(r=2 μm); (c) a fluorine doped second annular region surrounding and directly adjacent to the first annular core region and extending to a radius 20 μm≦r3≦30 μm and having a negative relative refractive index percent profile, Δ3(r) in %, measured relative to pure silica, with a minimum relative refractive index percent Δ3MIN and −0.5%

    Optical fiber with large effective area
    5.
    发明申请
    Optical fiber with large effective area 失效
    光纤有效面积大

    公开(公告)号：US20080304800A1

    公开(公告)日：2008-12-11

    申请号：US12070845

    申请日：2008-02-21

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

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

    IPC: G02B6/02

    CPC classification number: G02B6/02014 ,  G02B6/02019 ,  G02B6/02357 ,  G02B6/02366 ,  G02B6/0365 ,  G02B6/03661 ,  G02B6/03688

    Abstract: An optical fiber comprising: a glass core extending from a centerline to a radius R1; a glass cladding surrounding and in contact with the core, the cladding comprising:a first annular region extending from R1 to a radius R2, the first annular region comprising a radial width, W2=R2−R1, a second annular region extending from R2 to a radius R3, the second annular region comprising a radial width, W3=R3−R2, and a third annular region extending from R3 to an outermost glass radius R4; wherein (i) the core comprises a maximum relative refractive index, Δ1MAX, relative to the third annular region; (ii) wherein the first annular region comprises a radial width W2; and (iii) the second annular region comprises a minimum relative refractive index, Δ3MIN, relative to the third annular region wherein Δ1MAX>Δ2MAX>Δ3MIN, and Δ2MIN>Δ3MIN; and the core and the cladding provide a fiber with cable cutoff less than 1500 nm, dispersion at 1550 nm less than 12 ps/nm/km, effective area at 1550 nm greater than 60 μm2, and preferably greater than 70 μm2. The second annular cladding region may contain a plurality of randomly dispersed holes.

    Abstract translation: 一种光纤，包括：从中心线延伸到半径R1的玻璃芯; 围绕并与芯接触的玻璃包层，所述包层包括：从R1延伸到半径R2的第一环形区域，所述第一环形区域包括径向宽度W2 = R2-R1，从R2延伸到第二环形区域 半径R3，第二环形区域包括径向宽度，W3 = R3-R2，以及从R3延伸到最外侧玻璃半径R4的第三环状区域; 其中（i）所述芯包括相对于所述第三环形区域的最大相对折射率Delta1MAX; （ii）其中所述第一环形区域包括径向宽度W2; 和（iii）第二环形区域包括相对于第三环形区域的最小相对折射率Delta3MIN，其中Delta1MAX> Delta2MAX> Delta3MIN和Delta2MIN> Delta3MIN; 并且芯和包层提供具有小于1500nm的电缆截止的光纤，在1550nm处的色散小于12ps / nm / km，在1550nm处的有效面积大于60mum2，优选大于70mum2。 第二环形包层区域可以包含多个随机分布的孔。

    Large effective area fiber
    6.
    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

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

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

    IPC: G02B6/028

    CPC classification number: G02B6/0365 ,  G02B6/02019

    Abstract: 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

    Abstract translation: 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。

    Optical fiber containing alkali metal oxide
    7.
    发明申请
    Optical fiber containing alkali metal oxide 审中-公开
    含有碱金属氧化物的光纤

    公开(公告)号：US20080050086A1

    公开(公告)日：2008-02-28

    申请号：US11891274

    申请日：2007-08-09

    Applicant: Scott Robertson Bickham ,  Snigdharaj Kumar Mishra

    Inventor： Scott Robertson Bickham ,  Snigdharaj Kumar Mishra

    IPC: G02B6/00

    CPC classification number: G02B6/0281 ,  C03B37/01453 ,  C03B37/01807 ,  C03B37/01853 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/50 ,  C03B2203/22 ,  C03B2207/90

    Abstract: Disclosed is an optical fiber having a silica-based core comprising an alkali metal oxide a silica-based core, said core comprising an alkali metal oxide selected from the group consisting of K2O, Na2O, LiO2, Rb2O, Cs2O and mixtures thereof in an average concentration in said core between about 50 and 1000 ppm by weight, and a silica-based cladding surrounding and directly adjacent the core, said fiber comprising a cable cutoff less than 1400 nm chromatic dispersion at 1550 nm between about 13 and 19 ps/nm/km and a zero dispersion wavelength less than about 1324 nm. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained.

    Abstract translation: 公开了一种具有二氧化硅基核的光纤，其包含碱金属氧化物二氧化硅基核，所述芯包含选自K 2 O，Na 2 O， 2 O，LiO 2，Rb 2 O，Cs 2 O及其混合物，其中所述芯中的平均浓度在约 50和1000重量ppm，以及围绕并直接邻近芯的二氧化硅基包层，所述光纤包括在1550nm处在约13和19ps / nm / km之间的小于1400nm色散的电缆，并且零色散波长 小于约1324nm。 通过适当地选择芯和包层中的碱金属氧化物掺杂剂的浓度，可以获得低损耗光纤。

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