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    DUAL COATED OPTICAL FIBERS AND METHODS FOR FORMING THE SAME
    1.
    发明公开
    DUAL COATED OPTICAL FIBERS AND METHODS FOR FORMING THE SAME 审中-公开
    德国柏林奇格兰玻璃公司（VOPFAELT BESCHICHTETE GLASFASERN UND VERFAHREN ZU IHRER FORMUNG）

    公开(公告)号：EP2539293A1

    公开(公告)日：2013-01-02

    申请号：EP11706410.5

    申请日：2011-02-17

    申请人： Corning Incorporated

    发明人： BENNETT, Kevin W. ,  KOH, Joohyun

    IPC分类号： C03C25/10 ,  G02B6/44

    CPC分类号： G02B6/02 ,  C03C25/1065 ,  C03C25/32 ,  G02B6/02395

    摘要： Dual coated optical fibers and methods for forming dual coated optical fibers are disclosed herein. The dual coated optical fibers include a glass fiber comprising a core region, a cladding region and a dual coating layer surrounding the glass fiber. The dual coating layer includes an inner coating and an outer coating. The inner coating surrounds the glass fiber and includes a first polyimide material. In one embodiment the first polyimide material also includes an adhesion promoter. The outer coating surrounds and is in direct contact with the inner coating and includes a second polyimide material having a decomposition threshold temperature greater than the first polyimide material. The second polyimide material may also have a modulus of elasticity greater than the first polyimide material and a moisture uptake lower than the first polyimide material.

    摘要翻译： 本文公开了双重涂覆的光纤和用于形成双重涂覆的光纤的方法。 双重涂覆的光纤包括玻璃纤维，其包括芯区域，包层区域和围绕玻璃纤维的双重涂层。 双涂层包括内涂层和外涂层。 内部涂层包围玻璃纤维并且包括第一聚酰亚胺材料。 在一个实施方案中，第一聚酰亚胺材料还包括粘合促进剂。 外涂层围绕并与内涂层直接接触，并且包括具有大于第一聚酰亚胺材料的分解阈值温度的第二聚酰亚胺材料。 第二聚酰亚胺材料也可以具有比第一聚酰亚胺材料大的弹性模量和低于第一聚酰亚胺材料的吸湿性。

    +CYLINDRICAL POLARIZATION BEAMS
    2.
    发明公开
    +CYLINDRICAL POLARIZATION BEAMS 有权
    Verdrehte optische Faser zur Erzeugung von optischen Vortex-Moden

    公开(公告)号：EP2324381A1

    公开(公告)日：2011-05-25

    申请号：EP09794827.7

    申请日：2009-07-09

    申请人： Corning Incorporated

    发明人： ALFANO, Robert, R. ,  CHEN, Xin ,  KOH, Joohyun ,  LI, Ming-jun ,  NOLAN, Daniel, A. ,  SZTUL, Henry

    IPC分类号： G02B6/036 ,  G02B6/14

    CPC分类号： G02B6/024 ,  C03B2203/10 ,  C03B2203/19 ,  C03B2203/32 ,  C03B2205/06 ,  G02B6/14

    摘要： Generation of a cylindrically polarized light beam, and in particular, a hybrid-azimuthal-radial polarization beams, called HARP modes, generated from an input linearly polarized Gaussian beam using a spun optical waveguide device is taught. The HARP modes are comprised of hybrid-azimuthal polarization (HAP) and hybrid-radial polarization (HRP) superposition modes. These beams possess a non-zero local angular momentum density that is spatially varying and a zero total angular momentum.

    摘要翻译： 教导了使用旋转光波导器件从输入线性偏振高斯光束产生的圆柱偏振光束，特别是称为HARP模式的混合方位角 - 径向偏振光束。 HARP模式由混合方位极化（HAP）和混合径向极化（HRP）叠加模式组成。 这些光束具有非零局部角动量密度，其空间变化和零总角动量。

    ALUMINUM DOPED OPTICAL FIBER
    4.
    发明公开
    ALUMINUM DOPED OPTICAL FIBER 审中-公开
    铝掺杂的光纤

    公开(公告)号：EP2252905A1

    公开(公告)日：2010-11-24

    申请号：EP09704391.3

    申请日：2009-01-15

    申请人： Corning Incorporated

    发明人： BENNETT, Kevin, W ,  KOH, Joohyun

    IPC分类号： G02B6/02 ,  G01K11/32

    CPC分类号： G02B6/02395 ,  G01K2011/324 ,  G02B6/0288

    摘要： According to one example of the invention an optical fiber comprises: (i) a core (12) consisting of Al doped silica having a first index of refraction n1; (ii) at least one silica based cladding (14) surrounding the core and having a second index of refraction n2, such that n1>n2; (iii) a hermetic carbon based coating (16) surrounding said cladding, said hermetic coating being 300nm -1000 nm thick; and (iv) a second coating (18) surrounding said hermetic coating, said second coating being 5 μm to 80 μm thick.

    DOUBLE-CLAD OPTICAL FIBERS AND DEVICES WITH DOUBLE-CLAD OPTICAL FIBERS
    6.
    发明公开
    DOUBLE-CLAD OPTICAL FIBERS AND DEVICES WITH DOUBLE-CLAD OPTICAL FIBERS 审中-公开
    双包层玻璃纤维以加倍的包层玻璃光纤器件

    公开(公告)号：EP2313801A2

    公开(公告)日：2011-04-27

    申请号：EP09800645.5

    申请日：2009-07-16

    申请人： Corning Incorporated

    发明人： CHEN, Xin ,  KOH, Joohyun ,  LI, Ming-Jun

    IPC分类号： G02B6/036 ,  G02B6/028

    CPC分类号： G02B6/02261 ,  G02B6/02342 ,  G02B6/02357 ,  G02B6/03633

    摘要： A double-clad optical fiber includes a core, an inner cladding and an outer cladding of silica-based glass. The core may have a radius of less than about 5μmn, a first index of refraction n1 and does not contain any active rare-earth dopants. The inner cladding may surround the core and includes a radial thickness of at least about 25 μm, a numerical aperture of at least about 0.25, and a second index of refraction n
    2 such that n
    2 1 . The relative refractive index percent (Δ%) of the core relative to the inner cladding may be greater than about 0.1%. The outer cladding may surround the inner cladding and include a radial thickness from about 10 μm to about 50 μm and a third index of refraction n
    3 such that n
    3 2 . The relative refractive index percent (%) of the inner cladding relative to the outer cladding may be greater than about 1.5%.

    DETECTION SYSTEM AND OPTICAL FIBER FOR USE IN SUCH SYSTEM
    10.
    发明公开
    DETECTION SYSTEM AND OPTICAL FIBER FOR USE IN SUCH SYSTEM 审中-公开
    检测系统和光纤，这样一个系统

    公开(公告)号：EP2335038A1

    公开(公告)日：2011-06-22

    申请号：EP09793327.9

    申请日：2009-10-07

    申请人： Corning Incorporated

    发明人： CHEN, Xin ,  KOH, Joohyun ,  LI, Ming-Jun ,  NOLAN, Daniel A

    IPC分类号： G01L1/24 ,  G01M11/00

    CPC分类号： G01L1/242 ,  C03B2203/19 ,  C03B2203/30 ,  C03B2205/06 ,  G01M11/3181 ,  G02B6/02

    摘要： A detection system (5) comprising: (i) an optical fiber, the optical fiber (12) having (a) a length L ≥l km; (b) beat length between 10 m and 100 m; and (c) beat length uniformity over any distance of at least 100 m within the length L is characterized by standard deviation σ, where σ ≤ 10 m; (ii) an OTDR (10) coupled to the fiber and including (a) a radiation source providing pulsed radiation to the fiber, (b) a detection system capable of detecting radiation that is backscattered back through the fiber; and (iii) at least one polarizer (18) situated between the fiber and the detector, such that the backscattered radiation passes through the polarizer before reaching the detector.