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    IRRADIATING RESIN-COATED OPTICAL FIBER THROUGH LIGHT-ABSORBING FLUID MATERIAL
    6.
    发明专利
    IRRADIATING RESIN-COATED OPTICAL FIBER THROUGH LIGHT-ABSORBING FLUID MATERIAL 未知

    公开(公告)号：CA1306441C

    公开(公告)日：1992-08-18

    申请号：CA520136

    申请日：1986-10-08

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： SUGAI MASAKATSU ,  TSUNEISHI KATSUYUKI ,  KAMEO YUJI

    IPC: C03C25/00 ,  B05D3/06 ,  B29C35/08 ,  B29C35/10 ,  C03B37/00 ,  C03C25/10 ,  G02B6/44 ,  B29D11/00

    Abstract: . The invention provides a method for producing an optical fiber having a surface coating of a UV-curable resin. The method comprises the following steps. An optical fiber is spun from a molten preform and a UV curable resin is applied to the surface of the fiber to form a resin coating. The coated fiber is passed through a container having UV transparent walls containing a gas for promoting the curing of the resin upon exposure to UV light. A layer of fluid material is provided outside the walls moving past the container at a predetermined flow rate. The fluid material contains at least two UV light-absorbing materials which have different absorbing wavelengths. The resin on the fiber is irradiated with UV light through the fluid material and through the container walls. The quantity of UV light absorbed by the fluid material is adjusted to compensate for build-up of resin on the container walls.

    POLYMER-CLAD OPTICAL FIBER AND CLAD MATERIAL
    10.
    发明专利
    POLYMER-CLAD OPTICAL FIBER AND CLAD MATERIAL 失效

    公开(公告)号：JPS6424203A

    公开(公告)日：1989-01-26

    申请号：JP18171787

    申请日：1987-07-20

    Applicant: SUMITOMO ELECTRIC INDUSTRIES

    Inventor： OKUDA YASUHIRO ,  YASUDA NORIHIKO ,  NISHIMOTO HIROAKI ,  SUGAI MASAKATSU ,  CHOKAI YASUO

    IPC: G02B6/00

    Abstract: PURPOSE:To obtain polymer-clad optical fiber having high strength and generating low loss by forming a clad part of a resin prepd. by setting an ultraviolet setting resin compsn. with ultraviolet rays. CONSTITUTION:A compd. having an ultraviolet ray functional group and an Si atom. bonded to at least one alkoxy group and halogen in a molecule, as expressed by formula I, is added to a clad-forming resin compsn. as a compd. capable of forming a chemical bond between core glass and a polymer in the stage of setting the compsn. with ultraviolet rays. In formula I, Z is a functional group capable of forming a chemical bond with an ultraviolet ray setting resin by the irradiation with ultraviolet rays; at least one among X1-X3 is an alkoxy group or halogen atom., and others are alkyl group or fluoroalkyl group; R is a single bond or a divalent org. group connecting Z to Si. By this constitution, a degree of increase of loss due to attachment of a caulked connector is reduced remarkably, increasing moreover drawing resistance, providing thus polymer clad optical fiber having high strength and generating low loss.

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