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    Optical fiber with large effective area
    4.
    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。

    Multimode optical fiber and system incorporating such
    5.
    发明授权
    Multimode optical fiber and system incorporating such 有权
    多模光纤及其结合的系统

    公开(公告)号：US08842957B2

    公开(公告)日：2014-09-23

    申请号：US13432553

    申请日：2012-03-28

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

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

    IPC分类号： G02B6/02 ,  G02B6/028

    CPC分类号： G02B6/0288 ,  G02B6/0281

    摘要： According to some embodiments, a multimode optical fiber comprises a graded index glass core with refractive index Δ1, a maximum refractive index delta Δ1MAX, and a core radius between 10 and 40 microns; and cladding region surrounding the core comprising refractive index Δ4, wherein the fiber exhibits an overfilled bandwidth at an operating wavelength in a 900 to 1250 nm wavelength range of greater than 2.5 GHz-km. According to some embodiments the fiber exhibits an overfilled bandwidth at a wavelength between 950 and 1100 nm which is greater than 4 GHz-km. According to some embodiments the fiber exhibits an overfilled bandwidth at a wavelength between 950 and 1100 nm which is greater than 10 GHz-km.

    摘要翻译： 根据一些实施例，多模光纤包括具有折射率＆Dgr; 1，最大折射率δ＆Dgr; 1MAX和10至40微米的芯半径的渐变折射率玻璃芯; 以及围绕包含折射率＆Dgr; 4的芯的包覆区域，其中在大于2.5GHz-km的900至1250nm波长范围内的光纤在工作波长处表现出过满的带宽。 根据一些实施方案，光纤在950和1100nm之间的波长上表现出超过4GHz-km的过满的带宽。 根据一些实施例，在大于10GHz-km的波长在950和1100nm之间的光纤表现出过满的带宽。

    Large effective area optical fiber with low bend loss
    7.
    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。

    Bend resistant multimode optical fiber
    8.
    发明授权
    Bend resistant multimode optical fiber 有权
    耐弯曲多模光纤

    公开(公告)号：US08385702B2

    公开(公告)日：2013-02-26

    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： G02B6/032

    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
    9.
    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.