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    LOW MACROBENDING LOSS OPTICAL FIBER
    2.
    发明专利
    LOW MACROBENDING LOSS OPTICAL FIBER 未知

    公开(公告)号：AU2003289741A1

    公开(公告)日：2004-03-11

    申请号：AU2003289741

    申请日：2003-05-12

    Applicant: CORNING INC

    Inventor： MARLOWE DAVID T ,  MISHRA SNIGDHARAJ K ,  CHRISTOFF WILLIAM R ,  JERIC KRISTINA M

    IPC: G02B6/02 ,  G02B6/028 ,  G02B6/00

    Abstract: The present invention provides an optical fiber suitable for the manufacture of optical fiber couplers and having low macrobending loss, low cutoff wavelength, low attenuation, and low sensitivity to variations in overclad mass. One aspect of the present invention provides an optical fiber having a core having an index profile, the index profile of the core having a value of alpha of between about 1.7 and about 3.0; and a cladding region surrounding and in contact with the core, the cladding region having an outer radius of at least about 40 mum, wherein the optical fiber has a cutoff wavelength of between about 870 nm and about 970 nm, and a macrobending loss of below about 1 dB at a wavelength of 1550 nm when wrapped one turn around a 32 mm mandrel.

    Low macrobending loss optical fiber
    8.
    发明专利
    Low macrobending loss optical fiber 未知

    公开(公告)号：AU2003289741A8

    公开(公告)日：2004-03-11

    申请号：AU2003289741

    申请日：2003-05-12

    Applicant: CORNING INC

    Inventor： JERIC KRISTINA M ,  MARLOWE DAVID T ,  CHRISTOFF WILLIAM R ,  MISHRA SNIGDHARAJ K

    IPC: G02B6/02 ,  G02B6/028 ,  G02B6/18

    Abstract: The present invention provides an optical fiber suitable for the manufacture of optical fiber couplers and having low macrobending loss, low cutoff wavelength, low attenuation, and low sensitivity to variations in overclad mass. One aspect of the present invention provides an optical fiber having a core having an index profile, the index profile of the core having a value of alpha of between about 1.7 and about 3.0; and a cladding region surrounding and in contact with the core, the cladding region having an outer radius of at least about 40 mum, wherein the optical fiber has a cutoff wavelength of between about 870 nm and about 970 nm, and a macrobending loss of below about 1 dB at a wavelength of 1550 nm when wrapped one turn around a 32 mm mandrel.

    9.
    发明专利
    未知

    公开(公告)号：AT236094T

    公开(公告)日：2003-04-15

    申请号：AT97934884

    申请日：1997-07-03

    Applicant: CORNING INC

    Inventor： BLASZYK PAUL E ,  CHRISTOFF WILLIAM R ,  GALLAGHER DANIEL E ,  HAWK ROBERT M ,  KIEFER WILLIAM J

    IPC: G02B6/00 ,  C03B37/027 ,  C03B37/03 ,  C03B37/12 ,  C03C25/00 ,  C03C25/12

    Abstract: Optical fiber is provided with a periodically reversing spin while the fiber is pulled through a melt zone. A cooled region of the fiber downstream from the melt zone passes between a pair of opposed elements. The opposed elements are moved so that surface regions engaging the fiber move in opposite lateral directions relative to one another, thus spinning the fiber about its axis. The lateral movement of the engaged surface portions is periodically reversed to reverse the spin direction. The opposed elements may include belts or rollers, which can be tilted to orientations oblique to the longitudinal direction of the fiber.

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