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    METHOD AND APPARATUS FOR DRAWING OPTICAL FIBERS
    86.
    发明专利
    METHOD AND APPARATUS FOR DRAWING OPTICAL FIBERS 未知

    公开(公告)号：CA2084258A1

    公开(公告)日：1993-11-02

    申请号：CA2084258

    申请日：1992-12-01

    Applicant: CORNING INC

    Inventor： HARVEY JILL A ,  HAWTOF DANIEL W ,  SPICER HENRY A

    IPC: G02B6/00 ,  C03B37/027 ,  C03B37/029

    Abstract: A method and apparatus for drawing an optical waveguide fiber which minimizes fiber bow caused by differential stresses in the cladding layer of the fiber are disclosed. The fiber is drawn from a preform which is heated in a draw furnace. Gases introduced at the top of the furnace form a boundary layer adjacent to the fiber which passes through the furnace, along with the fiber, into a tube. The tube isolates the fiber from the ambient atmosphere so that the boundary layer of gases established in the furnace remains substantially uniform until the viscosity of the cladding layer of the fiber is high enough to minimize differential stresses around the circumference of the fiber.

    METHOD ENABLING DUAL PRESSURE CONTROL WITHIN FIBER PREFORM DURING FIBER FABRICATION
    87.
    发明申请
    METHOD ENABLING DUAL PRESSURE CONTROL WITHIN FIBER PREFORM DURING FIBER FABRICATION 审中-公开
    在纤维制造过程中使纤维预制件内的双压力控制的方法

    公开(公告)号：WO2007106305A2

    公开(公告)日：2007-09-20

    申请号：PCT/US2007004532

    申请日：2007-02-20

    Applicant: CORNING INC ,  GALLAGHER MICHAEL T ,  HAWTOF DANIEL W ,  MCCARTHY JOSEPH E ,  VENKATARAMAN NATESAN

    Inventor： GALLAGHER MICHAEL T ,  HAWTOF DANIEL W ,  MCCARTHY JOSEPH E ,  VENKATARAMAN NATESAN

    IPC: C03B37/07 ,  C03B37/022 ,  C03B37/15

    CPC classification number: C03B37/02781 ,  C03B2203/42 ,  C03B2205/10

    Abstract: A method of fabricating a photonic crystal or photonic band gap optical fiber comprises providing a preform that includes a plurality of holes in an outer diameter, wherein the holes extend from a first end of a preform to a second end of the preform, and forming at least one radially inwardly-extending slot within the preform such that the slot intersects at least some of the holes, wherein the slot does not intersect at least one hole. The method also includes establishing a first pressure in the holes intersected by the slot by introducing the first pressure to the slot, and establishing a second pressure in the at least one hole not intersected by the slot by introducing the second pressure to an end of the at least one hole not intersected by the slot. The method further includes drawing the preform into a fiber while independently controlling the first and second pressures.

    Abstract translation: 一种制造光子晶体或光子带隙光纤的方法包括提供预制件，该预制件在外径上包括多个孔，其中孔从预制件的第一端延伸到预制件的第二端， 所述预制件内的至少一个径向向内延伸的狭槽使得所述狭槽与至少一些所述孔相交，其中所述狭槽不与至少一个孔相交。 该方法还包括通过将第一压力引入到狭槽中，在与狭槽相交的孔中建立第一压力，以及通过将第二压力引入到狭槽的端部而在未与狭槽相交的至少一个孔中建立第二压力 至少一个孔不与狭槽相交。 该方法还包括将预制件拉成纤维，同时独立地控制第一和第二压力。

    METHOD OF MAKING A PHOTONIC CRYSTAL PREFORM
    88.
    发明申请
    METHOD OF MAKING A PHOTONIC CRYSTAL PREFORM 审中-公开
    制作光子晶体预制件的方法

    公开(公告)号：WO2004106248B1

    公开(公告)日：2005-02-03

    申请号：PCT/US2004009731

    申请日：2004-03-30

    Applicant: CORNING INC ,  HAWTOF DANIEL W ,  KOCH KARL W III ,  VENKATARAMAN NATESAN

    Inventor： HAWTOF DANIEL W ,  KOCH KARL W III ,  VENKATARAMAN NATESAN

    IPC: C03B37/012 ,  G02B6/02 ,  G02B6/028 ,  C03B37/027

    CPC classification number: G02B6/02038 ,  C03B37/01208 ,  C03B37/01231 ,  C03B2203/14 ,  C03B2203/18 ,  C03B2203/42 ,  G02B6/02333 ,  G02B6/02366 ,  G02B6/0288

    Abstract: Disclosed is a method of making a photonic crystal optical fiber preform by stacking and bonding individual glass disks. In one embodiment, each glass disk has a pattern of voids formed therethrough, and the pattern for each disk is the same. In another embodiment, glass blanks are formed without voids and stacked with disks having voids wherein an optical fiber preform is formed having channels closed at both ends by glass having no channels. Also disclosed is an optical fiber having channels closed at both ends by glass without channels.

    Abstract translation: 公开了通过堆叠和贴合单个玻璃盘来制造光子晶体光纤预制件的方法。 在一个实施例中，每个玻璃盘具有通过其形成的空隙的图案，并且每个盘的图案是相同的。 在另一个实施例中，玻璃坯料形成为没有空隙，并且堆叠成具有空隙的圆盘，其中形成光纤预制件，其通道在两端由不具有通道的玻璃封闭。 还公开了一种光纤，其通道在两端通过无通道的玻璃封闭。

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