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    12.
    发明专利
    未知

    公开(公告)号：BRPI0413236A

    公开(公告)日：2006-10-03

    申请号：BRPI0413236

    申请日：2004-08-02

    Applicant: FIBERCORE INC

    Inventor： GUSKOV MICHAEL I ,  DANILOV EVGUENIY B ,  ASLAMI MOHD ,  WU DAU

    IPC: C03B37/018 ,  H05H1/30 ,  C23C4/16 ,  C23C16/453 ,  C23C16/513 ,  C23C16/54

    Abstract: A plasma flame is generated in an interior volume of a tubular member to be a radially directed plasma flame, directed to an inside surface of the tubular member, and reagent chemicals are injected to form soot particles, and the soot particles are deposited on the inner surface by the plasma flame. The plasma flame is generated by establishing an electromagnetic field in a region in the tube interior and inserting a plasma gas feeder nozzle into the tube interior, with the nozzle structured to emit plasma gas in a manner forming the radially directed plasma flame.

    13.
    发明专利
    未知

    公开(公告)号：DE60205097D1

    公开(公告)日：2005-08-25

    申请号：DE60205097

    申请日：2002-03-06

    Applicant: FIBERCORE INC

    Inventor： GOUSKOV I ,  DANILOV B ,  ASLAMI A ,  WU DAU

    IPC: C03B37/018 ,  C03B37/014 ,  C03B37/027

    Abstract: A plurality of glass deposition targets are rotated simultaneously and a first plasma torch, having a coil diameter larger than the sum of the target diameters, deposits glass simultaneously on the plurality. After the diameter of the targets reaches a threshold a second plasma torch is used. The diameter of the second plasma torch can provide for simultaneous deposition. In a further embodiment, after the target diameter reaches a second threshold a third plasma torch is used. In a further embodiment the spacing between the axes of rotation of the targets is widened as the target diameter increases. In a still further embodiment a single plasma torch includes movable concentric tubes within its coil to selectively operate as any of a plurality of different diameter plasma torches.

    METHOD FOR MAKING OPTICAL FIBER PREFORM USING SIMULTANEOUS INSIDE AND OUTSIDE DEPOSITION
    17.
    发明公开
    METHOD FOR MAKING OPTICAL FIBER PREFORM USING SIMULTANEOUS INSIDE AND OUTSIDE DEPOSITION 审中-公开
    METHOD FOR PRODUCING同时具有内外分离光纤预制棒

    公开(公告)号：EP1494976A4

    公开(公告)日：2006-02-01

    申请号：EP03716564

    申请日：2003-03-14

    Applicant: FIBERCORE INC

    Inventor： GUSKOV MIKHAIL I ,  DANILOV EVGUENIE B ,  HAMMERLE WOLFGANG ,  ASLAMI MOHD A ,  WU DAU

    IPC: C03B1/00 ,  C03B37/014 ,  C03B37/018

    CPC classification number: C03B37/01823 ,  C03B37/01426 ,  C03B37/01869

    Abstract: A method and apparatus for making optical fiber preforms using simultaneous plasma deposition on the inside and outside surface of a starting tube. A starting tubular member (12) is rotated, CFOT chemicals (22) are selectively injected into the plasma torch (16) and CFIT chemicals (24) are selectively injected to flow through the hollow of the tube (12). The plasma torch is traversed along the tubular member to simultaneously deposit soot on the inside and outside surface. The soot on one or both surfaces may be consolidated into a silica layer as it is deposited. The plasma torch (16) is traversed again to deposit additional soot, and/or consolidate previously deposited soot, on one or both surfaces. The process is repeated until a predetermined amount of silica is formed on the tubular member. The tubular member is then collapsed. Optionally, additional plasma deposition is performed during or after the collapsing.

    Abstract translation: 一种用于制造使用在起始管的内表面和外表面同时等离子体沉积光纤预制棒的方法和装置。 的起始的管状构件（12）旋转时，化学品CFOT（22）被选择性地注入到等离子体炬（16）和化学品CFIT（24）被选择性地注入通过管（12）的中空流动。 该等离子炬沿管状构件穿过内侧和外侧表面上同时沉积烟灰。 因为它被沉积在一个或两个表面上的烟灰可以被合并成一个二氧化硅层。 等离子体炬（16）被再次遍历存入额外煤烟和/或巩固先前沉积的烟灰，在一个或两个表面上。 重复该过程，直到二氧化硅的预定量是所述管状构件上形成。 然后将管状构件已折叠。 可选地，附加的等离子体沉积期间或塌陷之后进行。

    METHOD OF MAKING A TUBULAR MEMBER FOR OPTICAL FIBER PRODUCTION USING PLASMA OUTSIDE VAPOR DEPOSITION
    18.
    发明专利
    METHOD OF MAKING A TUBULAR MEMBER FOR OPTICAL FIBER PRODUCTION USING PLASMA OUTSIDE VAPOR DEPOSITION 未知

    公开(公告)号：MY124270A

    公开(公告)日：2006-06-30

    申请号：MYPI9805755

    申请日：1998-12-19

    Applicant: FIBERCORE INC

    Inventor： GOUSKOV MIKHAIL IVANOVICH ,  DANILOV EVGUENIE BORISOVICH ,  ASLAMI MOHAMMAD AFZAL ,  WU DAU

    IPC: G02B6/00 ,  H05B6/10 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018

    Abstract: AN APPARATUS AND METHOD FOR PRODUCING A TUBULAR MEMBER, WHICH IS SUITABLE FOR USE AS A STARTER TUBE OR AN OPTICAL FIBER PREFORM, ON A ROTATING CYLINDRICAL TARGET MOUNTED ON A LATHE. THE TUBULAR MEMBER IS MADE BY MEANS OF PLASMA OUTSIDE VAPOR DEPOSITION. IN THIS PROCESS, A SOURCE GAS COMPRISING SIC14 AND, OPTIONALLY, A FLUORINE-LADEN CHEMICAL, IS INTRODUCED INTO AN AIR PLASMA.BOTH THE AIR AND THE SOURCE GAS ARE DRY GASES AND HAVE LOW HYDROXYL CONTENT. THE AIR PLASMA IS CREATED BY A HIGH-FREQUENCY PLASMATRON TORCH WHICH TRAVELS ALONG THE LENGTH OF THE TARGET ON A CARRIAGE. THE TORCH IS PROVIDED WITH A SHORT U-SHAPED GUTTER ON EITHER SIDE OF ITS RIM DIRECTLY BENEATH THE TARGET AND THE GROWING TUBULAR MEMBER. THIS GUTTER HELPS CHANNEL REACTION PRODUCTS OF THE SOURCE GAS AND THE PLASMA SO AS TO ENHANCE DEPOSITION ON THE GROWING TUBULAR MEMBER. THE TORCH IS FURTHER PROVIDED WITH AN INDUCTION COIL HAVING A PLURALITY OF WINDINGS, THE UPPERMOST WINDING BEING MAINTAINED A PREDETERMINED DISTANCE FROM THE SURFACE OF THE TUBULAR MEMBER AS THE LATTER IS BUILT UP..FIG. 1

    19.
    发明专利
    未知

    公开(公告)号：AT299841T

    公开(公告)日：2005-08-15

    申请号：AT02713726

    申请日：2002-03-06

    Applicant: FIBERCORE INC

    Inventor： GOUSKOV MIKHAIL I ,  DANILOV EVGUENIE B ,  ASLAMI MOHD A ,  WU DAU

    IPC: C03B37/018 ,  C03B37/014 ,  C03B37/027

    Abstract: A plurality of glass deposition targets are rotated simultaneously and a first plasma torch, having a coil diameter larger than the sum of the target diameters, deposits glass simultaneously on the plurality. After the diameter of the targets reaches a threshold a second plasma torch is used. The diameter of the second plasma torch can provide for simultaneous deposition. In a further embodiment, after the target diameter reaches a second threshold a third plasma torch is used. In a further embodiment the spacing between the axes of rotation of the targets is widened as the target diameter increases. In a still further embodiment a single plasma torch includes movable concentric tubes within its coil to selectively operate as any of a plurality of different diameter plasma torches.

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