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    FEW MODE OPTICAL FIBERS FOR MODE DIVISION MULTIPLEXING
    61.
    发明申请
    FEW MODE OPTICAL FIBERS FOR MODE DIVISION MULTIPLEXING 审中-公开
    用于模式分段多路复用的模式光纤

    公开(公告)号：WO2014021894A3

    公开(公告)日：2014-05-08

    申请号：PCT/US2012049289

    申请日：2012-08-02

    Applicant: CORNING INC ,  BICKHAM SCOTT ROBERTSON ,  LI MING-JUN ,  NOLAN DANIEL ALOYSIUS ,  WANG JI

    Inventor： BICKHAM SCOTT ROBERTSON ,  LI MING-JUN ,  NOLAN DANIEL ALOYSIUS ,  WANG JI

    IPC: G02B6/02

    CPC classification number: G02B6/0288 ,  G02B6/02019 ,  G02B6/02047 ,  G02B6/0281 ,  G02B6/03627 ,  G02B6/0365

    Abstract: 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 &Dgr;1MAX 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 &Dgr;4MAX such that &Dgr;1MAX > &Dgr;4MAX, 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.

    Abstract translation: 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。

    LARGE EFFECTIVE AREA FIBER WITH GE-FREE CORE
    62.
    发明申请
    LARGE EFFECTIVE AREA FIBER WITH GE-FREE CORE 审中-公开
    具有无缝芯的大型有效区域纤维

    公开(公告)号：WO2011094256A8

    公开(公告)日：2012-10-18

    申请号：PCT/US2011022503

    申请日：2011-01-26

    Applicant: CORNING INC ,  BICKHAM SCOTT R ,  BOOKBINDER DANA C ,  LI MING-JUN ,  MISHRA SNIGDHARAJ K ,  NOLAN DANIEL A ,  TANDON PUSHKAR

    Inventor： BICKHAM SCOTT R ,  BOOKBINDER DANA C ,  LI MING-JUN ,  MISHRA SNIGDHARAJ K ,  NOLAN DANIEL A ,  TANDON PUSHKAR

    IPC: G02B6/02 ,  G02B6/028 ,  G02B6/036

    CPC classification number: C03C13/046 ,  G02B6/02019 ,  G02B6/02395 ,  G02B6/0281 ,  G02B6/0283 ,  G02B6/03627 ,  G02B6/0365

    Abstract: An optical waveguide fiber comprises: (i) a Ge free core (12) having an effective area of 100 µm2 to 160 µm2, at a 1550 nm wavelength, and an a value 12= a=200, said core comprising: (a) a central core region (14) extending radially outwardly from a centerline to a radius r., and having a relative refractive index percent profile ?0(r) in % measured relative to pure silica, wherein -0.1 % =0. 1 %, wherein the central core region has a maximum relative refractive index percent, ?0MAX (b) a first annular core region (16) surrounding and directly adjacent to the central core region and extending to an outer radius r1 wherein 4.8 µm =r, =10 µm, and having a relative refractive index percent profile, ?1(r) in % measured relative to pure silica, and a minimum relative refractive index, and the relative refractive index measured at a radius r = 2.5 µm being: -0.15 ?,(r =2.5 µm), (c) a fluorine doped second annular region (18) surrounding and directly adjacent to the first annular core region and extending to a radius 13 µm

    Abstract translation: 一种光波导光纤包括：（i）在1550nm波长处具有100μm2至160μm2的有效面积的无锗芯（12），并且值12 = a = 200，所述芯包括：（a） 中心芯区域（14），其从中心线径向向外延伸到半径r，并且具有相对于纯二氧化硅测量的相对折射率百分比曲线？0（r），其中-0.1％= 0。 1％，其中中心芯区域具有最大相对折射率百分比，α0MAX（b）围绕并直接邻近中心芯区域并延伸到外半径r1的第一环形芯区域（16），其中4.8μm= r =10μm，相对折射率百分比曲线，相对于纯二氧化硅测得的Δ1（r）％，最小相对折射率，在半径r =2.5μm处测得的相对折射率为： 0.15 <α，（r =2.5μm）<0，θ0 >，（r =2.5μm），（c）氟掺杂的第二环形区域（18），其围绕并直接邻近第一环形芯区域延伸到半径13μm

    OPTICAL FIBER WITH LARGE EFFECTIVE AREA
    64.
    发明申请
    OPTICAL FIBER WITH LARGE EFFECTIVE AREA 审中-公开
    具有较大有效面积的光纤

    公开(公告)号：WO2008106033A3

    公开(公告)日：2008-10-16

    申请号：PCT/US2008002209

    申请日：2008-02-20

    Applicant: CORNING INC ,  BICKHAM SCOTT R ,  BOOKBINDER DANA C ,  CHEN XIN ,  LI MING-JUN ,  MISHRA SNIGDHARAJ K ,  NOLAN DANIEL A ,  TANDON PUSHKAR

    Inventor： BICKHAM SCOTT R ,  BOOKBINDER DANA C ,  CHEN XIN ,  LI MING-JUN ,  MISHRA SNIGDHARAJ K ,  NOLAN DANIEL A ,  TANDON PUSHKAR

    IPC: G02B6/02

    CPC classification number: G02B6/02014 ,  G02B6/02019 ,  G02B6/02357 ,  G02B6/02366 ,  G02B6/0365 ,  G02B6/03661 ,  G02B6/03688

    Abstract: An optical fiber comprising: a glass core extending from a centerline to a radius R 1 ; a glass cladding surrounding and in contact with the core, the cladding comprising: a first annular region extending from R 1 to a radius R 2 , the first annular region comprising a radial width, W 2 = R 2 - R 1 , a second annular region extending from R 2 to a radius R 3 , the second annular region comprising a radial width, W 3 = R 3 - R 2 , and a third annular region extending from R 3 to an outermost glass radius R 4 ; wherein (i) the core comprises a maximum relative refractive index, ? 1

    Abstract translation: 一种光纤，包括：从中心线延伸到半径R 1的玻璃芯; 玻璃包层，所述玻璃包层围绕所述芯并且与所述芯接触，所述包层包括：第一环形区域，所述第一环形区域从第一半径延伸至半径R第二半径，所述第一环形区域包括径向的 第二环形区域从第二子区域延伸到半径，第二环形区域从第二子区域延伸到半径 所述第二环形区域包括径向宽度，并且其中，所述第二环形区域包括径向宽度，并且其中，所述第二环形区域包括径向宽度，并且其中， 从R 3延伸至最外侧玻璃半径R 4的第三环形区域; 其中（i）所述核心包含最大相对折射率ρ1

    METHOD OF ESTIMATING AND MEASURING LONGITUDINAL DISPERSION IN OPTICAL FIBERS
    65.
    发明申请
    METHOD OF ESTIMATING AND MEASURING LONGITUDINAL DISPERSION IN OPTICAL FIBERS 审中-公开
    估计和测量光纤中长期分散的方法

    公开(公告)号：WO2006118911A2

    公开(公告)日：2006-11-09

    申请号：PCT/US2006015856

    申请日：2006-04-25

    Applicant: CORNING INC ,  CHEN XIN ,  LAING CHARLES F ,  LI MING-JUN ,  RANEY SONYA M

    Inventor： CHEN XIN ,  LAING CHARLES F ,  LI MING-JUN ,  RANEY SONYA M

    IPC: G01N21/00

    CPC classification number: G01M11/332 ,  G01M11/3163 ,  G01M11/338

    Abstract: A method for measuring longitudinal variation in chromatic dispersion in an optical fiber, comprising: (i) launching into a first end and a second end of optical fiber an optical signal at a wavelength ?1 to collect backscatter power P(z) for different positions z within said optical fiber and providing measured OTDR backscatter traces; (ii) deriving from the measured OTDR backscatter traces at the single OTDR wavelength ?1 either (a) the longitudinal MFD(z) data or (b) the relative MFD data; and (iii) calculating estimated longitudinal dispersion D(z) from the longitudinal MFD(z) data or the relative MFD data, without utilizing any other wavelength data.

    Abstract translation: 一种用于测量光纤中色散的纵向变化的方法，包括：（i）向光纤的第一端和第二端发射波长为λ1的光信号，以收集用于不同位置的反向散射功率P（z） z，并提供测量的OTDR后向散射迹线; （ii）从（a）纵向MFD（z）数据或（b）相对MFD数据，在单个OTDR波长λ1处从所测量的OTDR后向散射迹线得出; 和（iii）从纵向MFD（z）数据或相对MFD数据计算估计的纵向色散D（z），而不使用任何其它波长数据。

    HIGH NUMERICAL APERTURE FIBER
    69.
    发明申请
    HIGH NUMERICAL APERTURE FIBER 审中-公开
    高数值孔径光纤

    公开(公告)号：WO2008094234A3

    公开(公告)日：2008-10-23

    申请号：PCT/US2007023580

    申请日：2007-11-08

    Applicant: CORNING INC ,  BOOKBINDER DANA C ,  LI MING-JUN ,  MURTAGH MICHAEL T ,  NOLAN DANIEL A ,  TANDON PUSHKAR ,  WANG JI

    Inventor： BOOKBINDER DANA C ,  LI MING-JUN ,  MURTAGH MICHAEL T ,  NOLAN DANIEL A ,  TANDON PUSHKAR ,  WANG JI

    IPC: G02B6/02

    CPC classification number: G02B6/02366 ,  G02B6/024 ,  G02B6/03633

    Abstract: An optical fiber comprising: a silica based core having a first index of refraction ni; and at least one silica based cladding surrounding the core, the at least one silica based cladding comprising index lowering non-periodic voids containing a gas, wherein at least 80% of said voids have a maximum cross-sectional dimension of less than 2000 nm, and the NA of the fiber layer situated immediately adjacent to and inside said at least one silica based cladding is at least 0.2.

    Abstract translation: 一种光纤，包括：具有第一折射率ni的二氧化硅基芯; 以及围绕所述芯的至少一个基于二氧化硅的包覆层，所述至少一个基于二氧化硅的包覆层包含含有气体的降低折射率的非周期性空隙，其中所述空隙的至少80％具有小于2000nm的最大横截面尺寸， 位于紧邻所述至少一个硅基包层并在其内部的纤维层的NA为至少0.2。

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