DISPERSION COMPENSATING FIBER FOR LOW DISPERSION SLOPE TRANSMISSION FIBER AND OPTICAL TRANSMISSION LINE UTILIZING SAME

    公开(公告)号:AU2003253786A1

    公开(公告)日:2004-02-02

    申请号:AU2003253786

    申请日:2003-07-02

    Applicant: CORNING INC

    Inventor: BICKHAM SCOTT R

    Abstract: A Dispersion Compensation (DC) fiber for low slope transmission fiber (such as a NZDSF) and transmission line including same. The DC fiber has a refractive index profile having a central core with a core delta (Delta 1 ) value less than 1.8%, a moat surrounding the central core having a moat delta (Delta 2 ) value greater than -0.9%, and a ring surrounding the moat having a positive ring delta (Delta 3 ). The DC fiber's refractive index profile is selected to provide total dispersion less than -40 and greater than -87 ps/nm/km, and kappa of greater than 165 and less than 270 nm, all at 1550 nm. The DC fiber, when used in a transmission line, may provide low average residual dispersion across the C, L, and C+L when such lines include transmission fibers with a total dispersion between 4 and 10 ps/nm/km and a dispersion slope less than 0.045 ps/nm 2 /km at 1550 nm.

    DISPERSION COMPENSATION OPTICAL FIBER AND OPTICAL TRANSMISSION LINE USING SAME

    公开(公告)号:AU2003225738A1

    公开(公告)日:2003-09-29

    申请号:AU2003225738

    申请日:2003-03-11

    Applicant: CORNING INC

    Abstract: A Dispersion Compensation (DC) fiber and transmission line including the same. The DC fiber has a refractive index profile having a central core with a core delta (DELTA1) value greater than 1.5%, a moat surrounding the central core having a moat delta (DELTA2) value less negative than -0.65%, and a ring surrounding the moat having a positive ring delta (DELTA3). The DC fiber's refractive index profile is selected to provide total dispersion less than -87 and greater than -167 ps/nm/km; dispersion slope more negative than -0.30 ps/nm2/km; and kappa of greater than 151 and less than 244 nm, all at 1550 nm. The DC fiber, when used in transmission lines, may provide low average residual dispersions across the C, L, C+L and S bands when such lines include transmission fibers with total dispersion between 4 and 10 ps/nm/km, and a positive dispersion slopes of less than 0.045 ps/nm2/km at 1550 nm. Further embodiments are described that include Raman pumping.

    HIGH CAPACITY OPTICAL WAVEGUIDE FIBER

    公开(公告)号:AU2002342178A1

    公开(公告)日:2003-06-10

    申请号:AU2002342178

    申请日:2002-10-28

    Applicant: CORNING INC

    Abstract: Disclosed is an optical waveguide fiber that simultaneously exhibits large effective area and good resistance to bend induced attenuation, as measured by any of the tests known in the art. The cut off wavelength is controlled to allow single mode operation over a wavelength range that extends from about 1340 nm to 1650 nm. The optical waveguide fiber refractive index profile is simple in design allowing cost effective manufacture.

    25.
    发明专利
    未知

    公开(公告)号:BR0111225A

    公开(公告)日:2003-03-18

    申请号:BR0111225

    申请日:2001-05-30

    Applicant: CORNING INC

    Abstract: Disclosed are refractive index profiles for total dispersion compensating optical waveguide fibers for use in high data rate, long length telecommunications systems. The optical waveguide fibers in accord with the invention provide substantially equal compensation of total dispersion over a range of wavelengths, thus facilitating wavelength division multiplexed systems. Also disclosed are spans of optical waveguide fiber that include a length of transmission fiber together with a length of the compensating fiber. The spans are joined end to end in series arrangement to form the optical waveguide fiber part of a telecommunication system.

    Dispersion map for slope compensating fibers

    公开(公告)号:AU7784901A

    公开(公告)日:2002-03-22

    申请号:AU7784901

    申请日:2001-06-26

    Applicant: CORNING INC

    Abstract: An optical transmission system is provided. The system includes a series of consecutive blocks of optical fiber. Each block of the system includes a first, second and third series of spans of optical fiber, where the second series of spans compensates for accumulated dispersion in the first and third series in the wavelength range of transmission. Optionally either the first or third series can be omitted.

    LARGE EFFECTIVE AREA FIBER
    28.
    发明申请
    LARGE EFFECTIVE AREA FIBER 审中-公开
    大型有效区域纤维

    公开(公告)号:WO2008136918A2

    公开(公告)日:2008-11-13

    申请号:PCT/US2008005157

    申请日:2008-04-22

    CPC classification number: G02B6/0365 G02B6/02019

    Abstract: An optical fiber according to an embodiment of the present invention comprises: a glass core extending from a centerline to a radius R 1 wherein R 1 is greater than about 5 µm; a glass cladding surrounding and in contact with the core, the cladding comprising: (i) a first annular region extending from the radius R 1 to a radius R 2 the first annular region comprising a radial width, W 2 = R 2 - R 1 , (ii) a second annular region extending from the radius R 2 to a radius R 3 , and comprising a radial width, W 3 = R 3 - R 2 , and (iii) a third annular region surrounding the second annular region and extending from the radius R 3 to an outermost glass radius R 4 ; wherein the core comprises a maximum relative refractive index, ? 1max , relative to the third annular region, and wherein ? 1MAX is greater than about 0.1 % and less than about 0.3 %; the first annular region has a refractive index delta ? 2 (r) is less than about 0.025%; wherein the second annular region comprises a minimum relative refractive index, ? 3MIN , relative to the third annular region; wherein ? 1MAX > ? 2MAX > ? 3MIN , and ? 2MIN > ? 3MIN 2 and bend loss of ==0.5 dB/turn on a 20 mm diameter mandrel.

    Abstract translation: 根据本发明实施例的光纤包括:从中心线延伸到半径R 1 1的玻璃芯,其中R 1大于约5μm; 围绕并与芯接触的玻璃包层,所述包层包括:(i)从半径R 1> 1延伸到半径R 2的第一环形区域,所述第一环形 包括径向宽度的区域,(2)从半径R 2 到半径R 3 3,并且包括径向宽度,W 3 3 = R 3→R 2 和(iii)围绕第二环形区域并从半径R 3 3延伸到最外玻璃半径R 4的第三环形区域; 其中所述芯包括相对于所述第三环形区域的最大相对折射率α1 max,并且其中Δ1MAX1大于约0.1%且小于约0.3% ; 第一环形区域的折射率Δθ2(r)小于约0.025%; 其中所述第二环形区域相对于所述第三环形区域包括最小相对折射率β3ININ; 其中α1 M 1 M 2 M 2 M 3 M 3 M 1 M 2 N M N N N > <0; 并且其中所述芯和所述包层提供具有小于1500nm的电缆截止的光纤,并且在1550nm处的有效面积大于95μm2,并且对于20°的弯曲损耗为0.5dB / mm直径心轴。

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