BEND RESISTANT MULTIMODE OPTICAL FIBER
    41.
    发明申请
    BEND RESISTANT MULTIMODE OPTICAL FIBER 有权
    耐弯曲多模光纤

    公开(公告)号:US20120230638A1

    公开(公告)日:2012-09-13

    申请号:US13371857

    申请日:2012-02-13

    IPC分类号: G02B6/028

    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 first region having index delta percent Δ2, a depressed-index annular portion having Δ3, and a third annular region surrounding the depressed annular region comprising refractive index delta percent Δ4; wherein Δ1MAX>Δ4>Δ2>Δ3, wherein the difference between Δ4 and Δ2 is greater than or equal to 0.03%.

    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的芯区和包层区,所述包层区包括具有折射率Δ百分比Dgr的第一区域;具有&Dgr; 3的凹陷折射率环形部分,以及 围绕包含折射率三角洲百分比Dgr; 4的凹陷环形区域的第三环形区域; 其中&Dgr; 1>&Dgr; 4>&Dgr; 2>&Dgr; 3,其中Dgr 4与Dgr 2之间的差值大于或等于0.03%。

    LOW BEND LOSS OPTICAL FIBER
    45.
    发明申请
    LOW BEND LOSS OPTICAL FIBER 有权
    低弯损失光纤

    公开(公告)号:US20110211796A1

    公开(公告)日:2011-09-01

    申请号:US13030308

    申请日:2011-02-18

    IPC分类号: G02B6/036

    摘要: An optical fiber having both low macrobend loss and low microbend loss. The fiber has a first inner cladding region having an outer radius r2>8 microns and refractive index Δ2 and a second outer cladding region surrounding the inner cladding region having refractive index Δ3, wherein Δ1>Δ3>Δ2. The difference between Δ3 and Δ2 is greater than 0.01. The fiber exhibits a 22 m cable cutoff less than or equal to 1260 nm, and r1/r2 is greater or equal to 0.25.

    摘要翻译: 具有低弯曲损耗和低微弯损耗的光纤。 纤维具有外半径r2> 8微米且折射率&Dgr2的第一内包层区域和围绕具有折射率&Dgr; 3的内包层区域的第二外包层区域,其中&Dgr | 1&Dgr; 3&Dgr ; 2。 Dgr 3和Dgr之间的差异大于0.01。 纤维表现出小于或等于1260nm的22m电缆断线,r1 / r2大于或等于0.25。

    Bend insensitive optical fibers
    49.
    发明授权
    Bend insensitive optical fibers 有权
    弯曲不敏感光纤

    公开(公告)号:US07680381B1

    公开(公告)日:2010-03-16

    申请号:US12278000

    申请日:2008-11-25

    IPC分类号: G02B6/036

    CPC分类号: G02B6/03638 G02B6/03633

    摘要: An optical fiber includes a core, an inner cladding and a low index ring of silica-based glass. The core comprises silica-based glass, an index of refraction n1, and a relative refractive index percent Δ1% relative to pure silica glass. The inner cladding surrounds the core and comprises an index of refraction n2 and a relative refractive index percent Δ2% relative to pure silica glass, wherein Δ1%>Δ2% and the difference between Δ1% and Δ2% is greater than about 0.1%. The low index ring surrounds the inner cladding and comprises silica glass co-doped with boron and fluorine, a radial thickness of less than about 20 μm, an index of refraction n3 and a third relative refractive index percent change Δ3% relative to pure silica glass, wherein Δ2%>Δ3% and Δ3% is less than about −1.0%.

    摘要翻译: 光纤包括芯,内包层和二氧化硅基玻璃的低折射率环。 核心包括二氧化硅基玻璃,折射率n1,相对折射率百分数&Dgr;相对于纯石英玻璃为1%。 内部包层围绕芯部并且包括相对于纯石英玻璃的折射率n2和相对折射率百分比&Dgr; 2%,其中&Dgr; 1%>&Dgr; 2%,并且Dgr; 1%和&Dgr之间的差异; 2%大于约0.1%。 低折射率环围绕内包层并且包括与硼和氟共掺杂的二氧化硅玻璃,径向厚度小于约20μm,折射率n3和第三相对折射率百分比变化&Dgr;相对于纯度3% 石英玻璃,其中&Dgr; 2%>&Dgr; 3%和&Dgr; 3%小于约-1.0%。