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    System and method for optical fiber
    1.
    发明授权
    System and method for optical fiber 有权
    光纤系统和方法

    公开(公告)号：US09442246B2

    公开(公告)日：2016-09-13

    申请号：US14514193

    申请日：2014-10-14

    Applicant: Futurewei Technologies, Inc.

    Inventor： Charles Brunet ,  Leslie Rusch

    IPC: G02B6/036 ,  G02B6/032 ,  G02B6/028 ,  G02B6/14 ,  H04J14/04

    CPC classification number: G02B6/03611 ,  G02B6/028 ,  G02B6/03666 ,  G02B6/14 ,  H04B10/2581 ,  H04J14/04

    Abstract: In one embodiment, an optical fiber includes a first layer having a first refractive index and a second layer surrounding the first layer, where the second layer has a second refractive index, an inner radius, and an outer radius. The optical fiber also includes a third layer surrounding the second layer, where the third layer has a third refractive index, where the first refractive index is less than the second refractive index, where the third refractive index is less than the second refractive index, and where a ratio of the outer radius to the inner radius is less than 1.5.

    Abstract translation: 在一个实施例中，光纤包括具有第一折射率的第一层和围绕第一层的第二层，其中第二层具有第二折射率，内半径和外半径。 光纤还包括围绕第二层的第三层，其中第三层具有第三折射率，其中第一折射率小于第二折射率，其中第三折射率小于第二折射率，以及 其中外半径与内半径的比率小于1.5。

    DISPERSION COMPENSATION FIBER
    4.
    发明申请
    DISPERSION COMPENSATION FIBER 有权
    分散补偿纤维

    公开(公告)号：US20140369639A1

    公开(公告)日：2014-12-18

    申请号：US14009324

    申请日：2012-03-13

    Applicant: Shuqiang Zhang ,  Mingfeng Fan ,  Song Wang ,  Jin Xu ,  Jie Luo ,  Beibei Cao

    Inventor： Shuqiang Zhang ,  Mingfeng Fan ,  Song Wang ,  Jin Xu ,  Jie Luo ,  Beibei Cao

    IPC: G02B6/036 ,  G02B6/27

    CPC classification number: G02B6/03666 ,  G02B6/02214 ,  G02B6/02261 ,  G02B6/03644

    Abstract: A dispersion compensation fiber comprises a fiber core and cladding. The fiber core is a core layer mainly doped with germanium and having a positive relative refractive index difference. The cladding covering the fiber core comprises a trench cladding mainly doped with fluorine, an annular cladding mainly doped with germanium, a matching cladding mainly doped with fluorine, and an outermost mechanical cladding in order. Relative refractive index differences of the fiber core and the claddings are respectively: Δ1% being 1.55% to 2.20%, Δ2% being −0.55% to −0.30%, Δ3% being 0.40% to 0.65%, Δ4% being −0.20% to −0.01%, and Δ5% being 0. Radius ranges, from R1 to R5, of the fiber core and the claddings are respectively: R1 being 1.4 to 1.7 μm, R2 being 4.1 to 4.8 μm, R3 being 6.7 to 8.8 μm, R4 being 10 to 17 μm, and R5 being 38 to 63 μm.

    Abstract translation: 色散补偿光纤包括光纤芯和包层。 纤维芯是主要掺杂锗并且具有正的相对折射率差的芯层。 覆盖纤维芯的包层包括主要掺杂有氟的沟槽包层，主要掺杂有锗的环形包层，主要掺杂有氟的匹配包层以及最外层机械包层。 纤维芯和包层的相对折射率差异分别为：＆Dgr; 1％为1.55％至2.20％，＆Dgr; 2％为-0.55％至-0.30％，＆Dgr; 3％为0.40％至0.65％，＆Dgr ; 4％为-0.20％至-0.01％，＆Dgr; 5％为0.纤维芯和包层的半径范围为R1至R5分别为：R1为1.4〜1.7μm，R2为4.1〜4.8 μm，R3为6.7〜8.8μm，R4为10〜17μm，R5为38〜63μm。

    Optical barriers, waveguides, and methods for fabricating barriers and waveguides for use in harsh environments
    5.
    发明授权
    Optical barriers, waveguides, and methods for fabricating barriers and waveguides for use in harsh environments 有权
    光栅，波导和制造用于恶劣环境的屏障和波导的方法

    公开(公告)号：US08852695B2

    公开(公告)日：2014-10-07

    申请号：US13608118

    申请日：2012-09-10

    Applicant: Mengbing Huang ,  William T. Spratt

    Inventor： Mengbing Huang ,  William T. Spratt

    IPC: C23C14/48

    CPC classification number: C23C14/48 ,  C30B29/20 ,  C30B33/04 ,  G02B6/03666

    Abstract: Electromagnetic radiation barriers and waveguides, including barriers and waveguides for light, are disclosed. The barriers and waveguides are fabricated by directing charged particles, for example, ions, into crystalline substrates, for example, single-crystal sapphire substrates, to modify the crystal structure and produce a region of varying refractive index. These substrates are then heated to temperatures greater than 200 degrees C. to stabilize the modified crystal structure and provide the barrier to electromagnetic radiation. Since the treatment stabilizes the crystal structure at elevated temperature, for example, above 500 degrees C. or above 1000 degrees C., the barriers and waveguides disclosed are uniquely adapted for use in detecting conditions in harsh environments, for example, at greater than 200 degrees C. Sensors, systems for using sensors, and methods for fabricating barriers and waveguides are also disclosed.

    Abstract translation: 公开了电磁辐射屏障和波导，包括用于光的屏障和波导。 阻挡层和波导通过将带电粒子例如离子引导到晶体衬底（例如单晶蓝宝石衬底）中来修饰晶体结构并产生变化的折射率区域来制造。 然后将这些衬底加热到​​大于200摄氏度的温度，以稳定改性的晶体结构并为电磁辐射提供屏障。 由于处理在升高的温度（例如高于500摄氏度或高于1000摄氏度）下稳定晶体结构，因此公开的屏障和波导被独特地适用于在恶劣环境中检测条件，例如大于200 还公开了传感器，用于使用传感器的系统，以及用于制造屏障和波导的方法。

    Single-mode optical fiber
    6.
    发明授权
    Single-mode optical fiber 有权
    单模光纤

    公开(公告)号：US08798423B2

    公开(公告)日：2014-08-05

    申请号：US13481150

    申请日：2012-05-25

    Applicant: Pierre Sillard ,  Marianne Bigot-Astruc

    Inventor： Pierre Sillard ,  Marianne Bigot-Astruc

    IPC: G02B6/36 ,  C03B37/025 ,  G02B6/036 ,  C03B37/012

    CPC classification number: G02B6/0365 ,  C03B37/01211 ,  C03B37/01413 ,  C03B37/01807 ,  C03B37/01861 ,  C03B2201/02 ,  C03B2201/12 ,  G02B6/03605 ,  G02B6/03627 ,  G02B6/03666

    Abstract: A single-mode optical fiber includes a central core surrounded by an outer cladding. The optical fiber includes at least first and second depressed claddings positioned between the central core and the outer cladding. The central core typically has a radius of between about 3.5 microns and 5.5 microns and a refractive-index difference with the outer cladding of between about −1×10−3 and 3×10−3. The first depressed cladding typically has an outer radius of between about 9 microns and 15 microns and a refractive-index difference with the outer cladding of between about −5.5×10−3 and −2.5×10−3. The second depressed cladding typically has an outer radius of between about 38 microns and 42 microns and a refractive-index difference with the first depressed cladding of between about −0.5×10−3 and 0.5×10−3.

    Abstract translation: 单模光纤包括由外包层包围的中心芯。 光纤包括位于中心芯和外包层之间的至少第一和第二凹陷包层。 中心芯通常具有在约3.5微米至5.5微米之间的半径，并且与外包层的折射率差在约-1×10-3至3×10-3之间。 第一凹陷包层通常具有在约9微米至15微米之间的外半径，并且与外包层的折射率差在约-5.5×10-3和-2.5×10-3之间。 第二凹陷包层通常具有介于约38微米和42微米之间的外半径，并且与第一凹陷包层的折射率差在约-0.5×10-3和0.5×10-3之间。

    Broad-bandwidth multimode optical fiber having reduced bending losses
    8.
    发明授权
    Broad-bandwidth multimode optical fiber having reduced bending losses 有权
    具有减少弯曲损耗的宽带宽多模光纤

    公开(公告)号：US08565568B2

    公开(公告)日：2013-10-22

    申请号：US13037943

    申请日：2011-03-01

    Applicant: Marianne Bigot-Astruc ,  Denis Molin ,  Pierre Sillard

    Inventor： Marianne Bigot-Astruc ,  Denis Molin ,  Pierre Sillard

    IPC: G02B6/036

    CPC classification number: G02B6/03666 ,  G02B6/0288 ,  G02B6/0365

    Abstract: A multimode optical fiber includes a central core, an inner cladding, a buried trench, and an outer cladding (e.g., an outer optical cladding). Typically, the optical fiber's central core is a glass-based central core having an alpha-index profile (i.e., a graded-index profile), an outer radius r1, and a maximum refractive index difference Δn1 with respect to the outer cladding. The central core's alpha-index profile has a minimum refractive index at the central core's outer radius r1 that corresponds to a refractive index difference Δnend with respect to the outer cladding. The inner cladding has an outer radius r2, a width w2, and a refractive index difference Δn2 with respect to the outer cladding. The buried trench has an outer radius rext, a width w3, and a refractive index difference Δn3 with respect to the outer cladding. The multimode optical fiber typically has reduced bending losses, a high bandwidth at wavelengths of both 850 nanometers and 1300 nanometers, and a reduced cladding effect.

    Abstract translation: 多模光纤包括中心芯，内包层，埋入沟槽和外包层（例如，外光学包层）。 通常，光纤的中心芯是具有相对于外包层的α折射率分布（即渐变折射率分布），外半径r1和最大折射率差Deltan1的基于玻璃的中心芯。 中心芯的α折射率分布在中心芯的外半径r1处具有最小折射率，其对应于相对于外包层的折射率差Deltanend。 内包层具有相对于外包层的外半径r2，宽度w2和折射率差Deltan2。 掩埋沟槽具有相对于外包层的外半径rext，宽度w3和折射率差Deltan3。 多模光纤通常具有减小的弯曲损耗，在850纳米和1300纳米的波长处的高带宽以及降低的包层效应。

    Stretcher fiber and module
    9.
    发明授权
    Stretcher fiber and module 有权
    担架纤维和模块

    公开(公告)号：US08428413B2

    公开(公告)日：2013-04-23

    申请号：US12985546

    申请日：2011-01-06

    Applicant: Lars Gruner-Nielsen ,  Dan Peter Jakobsen ,  Kim Geissmann Jespersen

    Inventor： Lars Gruner-Nielsen ,  Dan Peter Jakobsen ,  Kim Geissmann Jespersen

    IPC: G02B6/02 ,  G02B6/036

    CPC classification number: G02B6/03666 ,  G02B6/02261

    Abstract: A stretcher fiber has a core region, inner trench region, ring region, outer trench region, and outer cladding region. The fiber regions are structured to provide the stretcher fiber with a relationship between dispersion and wavelength, such that the second and third derivatives of the stretcher fiber's propagation constant with respect to angular frequency have a shape and wavelength range matching those of a selected compressor module.

    Abstract translation: 担架纤维具有芯区域，内沟槽区域，环区域，外沟槽区域和外包层区域。 纤维区域被构造成为担架纤维提供色散和波长之间的关系，使得担架纤维相对于角频率的传播常数的第二和第三导数的形状和波长范围与选定的压缩机模块的形状和波长范围相匹配。

    Broad-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses
    10.
    发明申请
    Broad-Bandwidth Multimode Optical Fiber Having Reduced Bending Losses 有权
    具有减少弯曲损耗的宽带宽多模光纤

    公开(公告)号：US20110217012A1

    公开(公告)日：2011-09-08

    申请号：US13037943

    申请日：2011-03-01

    Applicant: Marianne Bigot-Astruc ,  Denis Molin ,  Pierre Sillard

    Inventor： Marianne Bigot-Astruc ,  Denis Molin ,  Pierre Sillard

    IPC: G02B6/036

    CPC classification number: G02B6/03666 ,  G02B6/0288 ,  G02B6/0365

    Abstract: A multimode optical fiber includes a central core, an inner cladding, a buried trench, and an outer cladding (e.g., an outer optical cladding). Typically, the optical fiber's central core is a glass-based central core having an alpha-index profile (i.e., a graded-index profile), an outer radius r1, and a maximum refractive index difference Δn1 with respect to the outer cladding. The central core's alpha-index profile has a minimum refractive index at the central core's outer radius r1 that corresponds to a refractive index difference Δnend with respect to the outer cladding. The inner cladding has an outer radius r2, a width w2, and a refractive index difference Δn2 with respect to the outer cladding. The buried trench has an outer radius rext, a width w3, and a refractive index difference Δn3 with respect to the outer cladding. The multimode optical fiber typically has reduced bending losses, a high bandwidth at wavelengths of both 850 nanometers and 1300 nanometers, and a reduced cladding effect.

    Abstract translation: 多模光纤包括中心芯，内包层，埋入沟槽和外包层（例如，外光学包层）。 通常，光纤的中心芯是具有相对于外包层的α折射率分布（即渐变折射率分布），外半径r1和最大折射率差Dgr; n1的玻璃基中心纤芯 。 中心芯的α折射率分布在中心纤芯的外半径r1处具有最小的折射率，其对应于相对于外包层的折射率差Dgr。nend。 内包层具有相对于外包层的外半径r2，宽度w2和折射率差Dgr; n2。 埋置的沟槽具有相对于外包层的外半径rext，宽度w3和折射率差Dgr; n3。 多模光纤通常具有减小的弯曲损耗，在850纳米和1300纳米的波长处的高带宽以及降低的包层效应。

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