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    Optical fiber containing alkali metal oxide
    12.
    发明申请
    Optical fiber containing alkali metal oxide 有权
    含有碱金属氧化物的光纤

    公开(公告)号：US20080279515A1

    公开(公告)日：2008-11-13

    申请号：US12082858

    申请日：2008-04-15

    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： G02B6/02

    CPC分类号： G02B6/02333 ,  C03B37/0124 ,  C03B37/01807 ,  C03B2201/12 ,  C03B2201/50 ,  C03B2203/14 ,  C03B2203/23 ,  G02B6/02357 ,  G02B6/0365

    摘要： 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 10 and 10000 ppm by weight, and a silica-based cladding surrounding and directly adjacent the core, the cladding including a region having a lower index of refraction than the remainder of such cladding. By appropriately selecting the concentration of alkali metal oxide dopant in the core and the cladding, a low loss optical fiber may be obtained which exhibits 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.

    摘要翻译： 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 10重量ppm和10000重量ppm，以及围绕并直接邻近该芯的二氧化硅基包层，该包层包括具有比这种包层的其余部分低的折射率的区域。 通过适当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，其在1550nm处显示出在约13和19ps / nm / km之间的电缆截止小于1400nm的色散， 和小于约1324nm的零色散波长。

    Large effective area fiber
    15.
    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。

    Large effective area fiber
    16.
    发明授权
    Large effective area fiber 有权
    大面积纤维有效面积

    公开(公告)号：US07555187B2

    公开(公告)日：2009-06-30

    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： G02B6/036

    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R1的玻璃芯，其中R1大于约5μm; 所述包层包括：（i）从所述半径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，（ii） 从半径R2延伸到半径R3并且包括径向宽度W3 = R3-R2的第二环形区域，以及（iii）围绕第二环形区域并且从半径R3延伸到最外侧玻璃半径的第三环形区域 R4; 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Delta1MAX，并且其中Δ1MAX大于约0.1％且小于约0.3％; 第一环形区域的折射率差Δ2（r）小于约0.025％; 其中所述第二环形区域相对于所述第三环形区域包括最小相对折射率Delta3MIN; 其中Delta1MAX> Delta2MAX> Delta3MIN和Delta2MIN> Delta3MIN <0; 并且其中芯和包层提供具有小于1500nm的电缆截止的光纤，并且在1550nm处的有效面积大于95mum2，并且在20mm直径的心轴上的弯曲损耗为<= 0.5dB /匝。

    High numerical aperture fiber
    19.
    发明申请
    High numerical aperture fiber 失效
    高数值孔径光纤

    公开(公告)号：US20080181567A1

    公开(公告)日：2008-07-31

    申请号：US11701287

    申请日：2007-01-31

    申请人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Michael Thomas Murtagh ,  Daniel Aloysius Nolan ,  Pushkar Tandon ,  Ji Wang

    发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Michael Thomas Murtagh ,  Daniel Aloysius Nolan ,  Pushkar Tandon ,  Ji Wang

    IPC分类号： G02B6/02 ,  G02B6/036

    CPC分类号： G02B6/02366 ,  G02B6/024 ,  G02B6/03633

    摘要： An optical fiber comprising: a silica based core having a first index of refraction n1; and at least one silica based cladding surrounding the core, the at least one silica based cladding comprising index lowering non-periodic voids containing a gas, wherein at least 80% of said voids have a maximum cross-sectional dimension of less than 2000 nm, and the NA of the fiber layer situated immediately adjacent to and inside said at least one silica based cladding is at least 0.2.

    摘要翻译： 一种光纤，包括：具有第一折射率n 1的二氧化硅基核; 以及包围所述芯的至少一个二氧化硅基包层，所述至少一个二氧化硅基包层包含含有气体的折射率降低的非周期性空隙，其中至少80％的所述空隙具有小于2000nm的最大横截面尺寸， 并且位于所述至少一个基于二氧化硅的包层内和所述至少一个二氧化硅基包层内的所述纤维层的NA为至少0.2。

    High numerical aperture fiber
    20.
    发明授权
    High numerical aperture fiber 失效
    高数值孔径光纤

    公开(公告)号：US07526166B2

    公开(公告)日：2009-04-28

    申请号：US11701287

    申请日：2007-01-31

    申请人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Michael Thomas Murtagh ,  Daniel Aloysius Nolan ,  Pushkar Tandon ,  Ji Wang

    发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Michael Thomas Murtagh ,  Daniel Aloysius Nolan ,  Pushkar Tandon ,  Ji Wang

    IPC分类号： G02B6/32

    CPC分类号： G02B6/02366 ,  G02B6/024 ,  G02B6/03633

    摘要： An optical fiber comprising: a silica based core having a first index of refraction n1; and at least one silica based cladding surrounding the core, the at least one silica based cladding comprising index lowering non-periodic voids containing a gas, wherein at least 80% of said voids have a maximum cross-sectional dimension of less than 2000 nm, and the NA of the fiber layer situated immediately adjacent to and inside said at least one silica based cladding is at least 0.2.

    摘要翻译： 一种光纤，包括：具有第一折射率n1的二氧化硅基核; 以及包围所述芯的至少一个二氧化硅基包层，所述至少一个二氧化硅基包层包含含有气体的折射率降低的非周期性空隙，其中至少80％的所述空隙具有小于2000nm的最大横截面尺寸， 并且位于所述至少一个基于二氧化硅的包层内和所述至少一个二氧化硅基包层内的所述纤维层的NA为至少0.2。