5.
    发明专利
    未知

    公开(公告)号:AT316944T

    公开(公告)日:2006-02-15

    申请号:AT00931925

    申请日:2000-04-07

    Applicant: CORNING INC

    Abstract: A cylindrical glass body having a low water content centerline region and method of manufacturing such a cylindrical glass body for use in the manufacture of optical waveguide fiber is disclosed. The centerline region of the cylindrical glass body has a water content sufficiently low such that an optical waveguide fiber made from the cylindrical glass body of the present invention exhibits an optical attenuation of less than about 0.35 dB/km, and preferably less than about 0.31 dB/km at a measured wavelength of 1380 nm. A low water content plug used in the manufacture of such a cylindrical glass body, an optical waveguide fiber having a low water peak, and an optical fiber communication system incorporating such an optical waveguide fiber is also disclosed.

    6.
    发明专利
    未知

    公开(公告)号:BR0009970A

    公开(公告)日:2002-01-08

    申请号:BR0009970

    申请日:2000-04-07

    Applicant: CORNING INC

    Abstract: A cylindrical glass body having a low water content centerline region and method of manufacturing such a cylindrical glass body for use in the manufacture of optical waveguide fiber is disclosed. The centerline region of the cylindrical glass body has a water content sufficiently low such that an optical waveguide fiber made from the cylindrical glass body of the present invention exhibits an optical attenuation of less than about 0.35 dB/km, and preferably less than about 0.31 dB/km at a measured wavelength of 1380 nm. A low water content plug used in the manufacture of such a cylindrical glass body, an optical waveguide fiber having a low water peak, and an optical fiber communication system incorporating such an optical waveguide fiber is also disclosed.

    HIGHER WAVELENGTH OPTIMIZED OPTICAL FIBER WAVEGUIDE

    公开(公告)号:CA2382957A1

    公开(公告)日:2001-04-19

    申请号:CA2382957

    申请日:2000-09-15

    Applicant: CORNING INC

    Abstract: Single mode optical fiber waveguides with reduced bending losses for wavelength range of 1300 nm to 1700 nm are disclosed. The extended ranges ar e achieved by altering the optical characteristics of the fiber, namely, the M AC number, the mode field diameter ("MFD"), and the cut-off wavelength. The single mode fibers disclosed exhibit a lower MFD and higher cut-off wavelength. In addition, optical fiber transmission systems, wave division multiplexing ("WDM") systems, and optical fiber ribbon cables are disclosed that incorporate the single mode optical fiber. Figure 2 shows the refractiv e index profile as a function of the fiber radius. Figure 6 illustrates a ribb on cable (700) with 4 fibers in a matrix material (708). Each fiber consists of a central core (702), a cladding layer (703), a primary (704) and a secondary polymer layer (705) and a colored ink coating layer (706).

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