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    Optical fiber with large effective area
    2.
    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

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

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

    IPC分类号： G02B6/02

    CPC分类号： G02B6/02014 ,  G02B6/02019 ,  G02B6/02357 ,  G02B6/02366 ,  G02B6/0365 ,  G02B6/03661 ,  G02B6/03688

    摘要： 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.

    摘要翻译： 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 optical fiber with low bend loss
    3.
    发明授权
    Large effective area optical fiber with low bend loss 有权
    具有低弯曲损耗的大面积有效面积的光纤

    公开(公告)号：US08538219B2

    公开(公告)日：2013-09-17

    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： G02B6/02

    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： 光纤包括中心玻璃芯区域，其包括最大折射率Δ百分比Δ1，围绕所述芯的第一内环形区域，包括折射率Δ百分比Δ2，环绕所述内环形区域的凹陷环形区域，包括Delta3和包围第三环形区域 凹陷的环形区域包括折射率Δ百分比Δ4; 其中Delta1MAX> Delta4> Delta2> Delta3。 Delta4和Delta2之间的差值大于0.01％，曲线体积| V3 | 至少为10％-mum2。 纤维在1550nm处表现出大于110mum2的有效面积。

    Large effective area fiber with Ge-free core
    4.
    发明授权
    Large effective area fiber with Ge-free core 有权

    公开(公告)号：US08315495B2

    公开(公告)日：2012-11-20

    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.

    Optical fiber containing alkali metal oxide
    7.
    发明授权
    Optical fiber containing alkali metal oxide 有权
    含有碱金属氧化物的光纤

    公开(公告)号：US07844155B2

    公开(公告)日：2010-11-30

    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, Li2O, 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K2O，Na2O，Li2O，Rb2O，Cs2O及其混合物的碱金属氧化物，其平均值 所述芯中的浓度在约10至10000ppm之间，以及围绕并直接邻近芯的二氧化硅基包覆层，包层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。

    Optical fiber with large effective area
    9.
    发明授权
    Optical fiber with large effective area 失效
    光纤有效面积大

    公开(公告)号：US07603015B2

    公开(公告)日：2009-10-13

    申请号：US12070845

    申请日：2008-02-21

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

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

    IPC分类号： G02B6/02 ,  G02B6/36

    CPC分类号： G02B6/02014 ,  G02B6/02019 ,  G02B6/02357 ,  G02B6/02366 ,  G02B6/0365 ,  G02B6/03661 ,  G02B6/03688

    摘要： 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.

    摘要翻译： 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。