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    Few mode optical fibers for mode division multiplexing
    8.
    发明授权
    Few mode optical fibers for mode division multiplexing 有权
    用于模式分割复用的少量模式光纤

    公开(公告)号：US08693834B2

    公开(公告)日：2014-04-08

    申请号：US13420037

    申请日：2012-03-14

    申请人： Scott Robertson Bickham ,  Ming-Jun Li ,  Daniel Aloysius Nolan ,  Ji Wang

    发明人： Scott Robertson Bickham ,  Ming-Jun Li ,  Daniel Aloysius Nolan ,  Ji Wang

    IPC分类号： H04B10/00

    CPC分类号： G02B6/0288 ,  G02B6/02019 ,  G02B6/02023 ,  G02B6/03627 ,  G02B6/0365 ,  H04J14/04

    摘要： A few mode optical fiber suitable for use in a mode division multiplexing (MDM) optical transmission system is disclosed. The optical fiber has a graded-index core with a radius R1 in the range from 8 μm to 14 μm, an alpha value greater than or equal to about 2.3 and less than about 2.7 at a wavelength of 1550 nm, and a maximum relative refractive index Δ1MAX from about 0.3% to about 0.6% relative to the cladding. The optical fiber also has an effective area greater than about 90 μm2 and less than about 160 μm2. The core and cladding support only the LP01 and LP11 modes at wavelengths greater than 1500 nm. The cladding has a maximum relative refractive index Δ4MAX such that Δ1MAX>Δ4MAX, and the differential group delay between the LP01 and LP11 modes is less than about 0.5 ns/km at a wavelength of 1550 nm.

    摘要翻译： 公开了适用于模分多路复用（MDM）光传输系统的几种模式光纤。 光纤具有半径R1在8μm至14μm范围内的梯度折射率芯，在1550nm波长处大于或等于约2.3且小于约2.7的α值，以及最大相对折射率 指数＆Dgr; 1MAX，相对于包层为约0.3％至约0.6％。 该光纤还具有大于约90μm2且小于约160μm2的有效面积。 芯和包层只支持波长大于1500 nm的LP01和LP11模式。 包层具有最大相对折射率＆Dgr; 4MAX，使得＆Dgr; 1MAX>＆Dgr; 4MAX，并且LP01和LP11模式之间的差分群延迟在1550nm的波长处小于约0.5ns / km。

    Few-Moded Optical Fibers
    9.
    发明申请
    Few-Moded Optical Fibers 有权
    少量光纤

    公开(公告)号：US20120328255A1

    公开(公告)日：2012-12-27

    申请号：US13164971

    申请日：2011-06-21

    申请人： Scott Robertson Bickham

    发明人： Scott Robertson Bickham

    IPC分类号： G02B6/028 ,  G02B6/036

    CPC分类号： G02B6/0288 ,  G02B6/02019 ,  G02B6/02023 ,  G02B6/03627

    摘要： Few moded optical fibers with small delay differences between the propagating modes are disclosed. In one embodiment, an optical fiber includes a glass core and a glass cladding surrounding and in direct contact with the glass core. The glass core may include a radius R1 from about 8 μm to about 13 μm; a graded refractive index profile with an alpha value between about 1.9 and 2.1 at a wavelength of 1550 nm; and a maximum relative refractive index Δ1MAX from about 0.6% to about 0.95% relative to the glass cladding. The effective area of the LP01 mode at 1550 nm may be between 80 μm2 and 105 μm2 such that the core supports the propagation and transmission of an optical signal with X LP modes at a wavelength of 1550 nm, wherein X is an integer greater than 1 and less than 10. The glass cladding may include a maximum relative refractive index Δ4MAX such that Δ1MAX>Δ4MAX. The optical fiber has DGD of less than or equal to about 150 ps/km at a wavelength of 1550 nm.

    摘要翻译： 公开了在传播模式之间具有小的延迟差的少量变形的光纤。 在一个实施例中，光纤包括围绕玻璃芯和与玻璃芯直接接触的玻璃外壳。 玻璃芯可包括约8μm至约13μm的半径R1; 在1550nm的波长下具有约1.9和2.1之间的α值的渐变折射率分布; 以及相对于玻璃包层的约0.6％至约0.95％的最大相对折射率＆Dgr; 1MAX。 在1550nm处的LP01模式的有效面积可以在80μm2和105μm2之间，使得核心支持在1550nm波长处的X LP模式的光信号的传播和传输，其中X是大于1的整数 并且小于10.玻璃包层可以包括最大相对折射率＆Dgr; 4MAX，使得＆Dgr; 1MAX>＆Dgr; 4MAX。 在1550nm的波长下，光纤的DGD小于或等于约150ps / km。

    Multimode fiber optic assemblies
    10.
    发明授权
    Multimode fiber optic assemblies 有权
    多模光纤组件

    公开(公告)号：US08297854B2

    公开(公告)日：2012-10-30

    申请号：US13207816

    申请日：2011-08-11

    申请人： Scott Robertson Bickham ,  Radawan Hall ,  James Phillip Luther ,  Daiping Ma

    发明人： Scott Robertson Bickham ,  Radawan Hall ,  James Phillip Luther ,  Daiping Ma

    IPC分类号： G02B6/36 ,  G02B6/02

    CPC分类号： G02B6/0288 ,  G02B6/4457

    摘要： Fiber optic assemblies including at least one multimode optical fiber that have improved performance are disclosed. In one embodiment, at least one connector is mounted upon and end of at least one multimode optical fiber and the assembly has an insertion loss of about 0.04 dB or less at a reference wavelength of 850 nanometers. Another embodiment is directed to a fiber optic assembly having a plurality of multimode optical fibers attached to a multifiber ferrule. The multifiber ferrule has a pair of guide pin bores having a nominal diameter, wherein the guide pin bores have a tolerance of ±0.0005 millimeters from a nominal diameter for improving performance.

    摘要翻译： 公开了包括具有改进的性能的至少一个多模光纤的光纤组件。 在一个实施例中，至少一个连接器安装在至少一个多模光纤的端部并且在850纳米的参考波长处具有约0.04dB或更小的插入损耗。 另一实施例涉及一种光纤组件，其具有连接到多光纤套圈的多个多模光纤。 多光纤套圈具有一对具有公称直径的导销孔，其中导向销孔具有与公称直径相差±0.0005毫米的公差，以提高性能。