Optical fiber
    1.
    发明授权
    Optical fiber 有权
    光纤

    公开(公告)号:US07894698B2

    公开(公告)日:2011-02-22

    申请号:US12493520

    申请日:2009-06-29

    IPC分类号: G02B6/036

    CPC分类号: G02B6/03694 G02B6/0365

    摘要: An improved optical fiber achieves both reduced bending and microbending losses, as well as a much higher Brillouin threshold, as compared to standard transmission fibers. The optical fiber comprises a core including at least two dopants and having a refractive index difference Δn1 with an outer optical cladding, a first inner cladding having a refractive index difference Δn2 with the outer cladding, and a depressed, second inner cladding having a refractive index difference Δn3 with the outer cladding of less than −3×10−3. The radial concentration of at least one of the core dopants varies continuously over the entire core region of the optical fiber.

    摘要翻译: 与标准传输光纤相比,改进的光纤实现了弯曲和微弯损耗减少以及更高的布里渊阈值。 该光纤包括一个包含至少两个掺杂剂并且具有外部光学包层的折射率差Dgr; n1的核心,具有与外部包层的折射率差Dgr; n2的第一内部包层以及凹陷的第二内部包层 折射率差Dgr; n3与外包层小于-3×10-3。 核心掺杂剂中的至少一种的径向浓度在光纤的整个核心区域上连续变化。

    Fluorine-Doped Optical Fiber
    4.
    发明申请
    Fluorine-Doped Optical Fiber 有权
    氟掺杂光纤

    公开(公告)号:US20090185780A1

    公开(公告)日:2009-07-23

    申请号:US12412746

    申请日:2009-03-27

    IPC分类号: G02B6/02

    摘要: A single mode optical transmission fiber comprises a depressed core having at least 0.41 weight percent fluorine and an index difference (|Δn1|) with pure silica greater than 1.5×10−3, a depressed cladding having at least 1.2 weight percent fluorine and an index difference (|Δn2|) with pure silica greater than 4.5×10−3 and an index difference (|Δn2|−|Δn1|) with the depressed core greater than or equal to 3×10−3.

    摘要翻译: 单模光纤传输光纤包括具有至少0.41重量百分比的氟和与纯二氧化硅大于1.5×10-3的折射率差(| Deltan1 |)的凹陷芯,具有至少1.2重量%氟的折射率差和折射率差 (| Deltan2 |),纯硅石大于4.5×10-3,折射率差(| Deltan2 | - | Deltan1 |)与凹陷芯大于或等于3×10 -3。

    Optical fiber with reduced stimulation Brillouin scattering
    5.
    发明授权
    Optical fiber with reduced stimulation Brillouin scattering 有权
    减少刺激的光纤布里渊散射

    公开(公告)号:US07437040B2

    公开(公告)日:2008-10-14

    申请号:US11470765

    申请日:2006-09-07

    申请人: Ivo Flammer

    发明人: Ivo Flammer

    IPC分类号: G02B6/02 G02B6/10

    摘要: An optical fiber having a given refractive index profile comprises a core region and a cladding region. The core region includes at least two co-dopants and the concentration of at least one of said core dopant varies continuously over the entire core region. The optical fiber has, at a wavelength of 1550 nm, a spontaneous Brillouin spectrum width equal or larger to 100 MHz.The optical fiber of the invention achieves a much higher Brillouin threshold compared to standard transmission fibers with limited fiber loss, less than 0.3 dB/km at a wavelength of 1550 nm, and without change in the optical transmission parameters of the fiber.

    摘要翻译: 具有给定折射率分布的光纤包括芯区域和包层区域。 核心区域包括至少两种共掺杂剂,并且至少一种所述核掺杂剂的浓度在整个核心区域上连续变化。 光纤在1550nm的波长处具有等于或大于100MHz的自发布里渊频谱宽度。 与具有有限的光纤损耗的标准传输光纤相比,本发明的光纤比1550nm的波长小于0.3dB / km,并且光纤的光传输参数没有变化。

    Optical fiber
    7.
    发明授权
    Optical fiber 有权
    光纤

    公开(公告)号:US07555186B2

    公开(公告)日:2009-06-30

    申请号:US11999333

    申请日:2007-12-04

    IPC分类号: G02B6/36

    CPC分类号: G02B6/03694 G02B6/0365

    摘要: An improved optical fiber achieves both reduced bending and microbending losses, as well as a much higher Brillouin threshold, as compared to standard transmission fibers. The optical fiber comprises a core including at least two dopants and having a refractive index difference Δn1 with an outer optical cladding, a first inner cladding having a refractive index difference Δn2 with the outer cladding, and a depressed, second inner cladding having a refractive index difference Δn3 with the outer cladding of less than −3×10−3. The radial concentration of at least one of the core dopants varies continuously over the entire core region of the optical fiber.

    摘要翻译: 与标准传输光纤相比,改进的光纤实现了弯曲和微弯损耗减少以及更高的布里渊阈值。 该光纤包括一个包含至少两个掺杂剂并且具有外部光学包层的折射率差Δtan1的芯,具有与外部包层的折射率差Deltan2的第一内部包层和具有折射率的凹陷的第二内部包层 差异Deltan3与外包层小于-3x10-3。 核心掺杂剂中的至少一种的径向浓度在光纤的整个核心区域上连续变化。

    Fluorine-Doped Optical Fiber
    9.
    发明申请
    Fluorine-Doped Optical Fiber 有权
    氟掺杂光纤

    公开(公告)号:US20080138021A1

    公开(公告)日:2008-06-12

    申请号:US11772946

    申请日:2007-07-03

    IPC分类号: G02B6/00

    摘要: A single mode optical transmission fiber comprises a depressed core having at least 0.41 weight percent fluorine and an index difference (|Δn1|) with pure silica greater than 1.5×10−3, a depressed cladding having at least 1.2 weight percent fluorine and an index difference (|Δn2|) with pure silica greater than 4.5×10−3 and an index difference (|Δn2|−|Δn1|) with the depressed core greater than or equal to 3×10−3.

    摘要翻译: 单模光纤传输光纤包括具有至少0.41重量百分比的氟和与纯二氧化硅大于1.5×10 -3的折射率差(| Deltan< 1& ,具有至少1.2重量%的氟和与纯二氧化硅大于4.5×10 -3的折射率差(| Deltan 2 | |)的折射率差(| Deltan< 2> 具有大于或等于3×3 -3的凹陷磁芯的Deltan 2< 3> | | Deltan< 1>