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    • 2. 发明申请
    • METHOD OF MAKING AN OPTICAL FIBER PREFORM
    • 制造光纤预制件的方法
    • WO2005066084A1
    • 2005-07-21
    • PCT/US2004/042388
    • 2004-12-16
    • CORNING INCORPORATEDBOOKBINDER, Dana CCHACON, Lisa CELLISON, Adam JGAUSMAN, Gregory GMURTAGH, Michael TWHEDON, William A
    • BOOKBINDER, Dana CCHACON, Lisa CELLISON, Adam JGAUSMAN, Gregory GMURTAGH, Michael TWHEDON, William A
    • C03B37/012
    • C03B37/01211C03B2201/50C03B2203/29
    • A method for manufacturing an alkali metal optical oxide doped glass optical fiber preform and fiber. According to the method, a first glass rod is formed, preferably by an OVD method, with a refractive index delta preferably between 0.2% and 3%. A glass sleeve tube is formed, preferably by an MCVD or PVCD method. The first glass rod is inserted into the sleeve tube and the rod-tube assembly is heated and an alkali metal vapor is flowed between the sleeve tube and the first glass rod. Additional glass may optionally be formed on the inside surface of the sleeve tube prior to inserting the first glass rod and flowing the alkali metal vapor. The additional glass may be up-doped, down-doped ,or both. The sleeve may then be collapsed onto the first glass rod to form a second glass rod doped with an alkali metal oxide. The second glass rod is drawn to form a third glass rod. Additional glass may then be formed on the third glass rod to form an optical fiber preform from which optical fiber may be drawn. Alternatively, the first glass rod is removed from the sleeve tube after flowing the alkali metal vapor and before the collapse step, after which additional glass may be formed on the first glass rod to form an optical fiber preform.
    • 一种制造碱金属光氧化物掺杂玻璃光纤预制棒和纤维的方法。 根据该方法,优选通过OVD方法形成第一玻璃棒,折射率Δ优选在0.2%至3%之间。 优选通过MCVD或PVCD方法形成玻璃套管。 将第一玻璃棒插入套管中,并加热棒管组件,并且在套管与第一玻璃棒之间流过碱金属蒸气。 在插入第一玻璃棒并使碱金属蒸气流动之前,另外的玻璃可任选地形成在套管的内表面上。 附加的玻璃可以是上掺杂的,下掺杂的或两者的。 然后可以将套筒折叠到第一玻璃棒上以形成掺杂有碱金属氧化物的第二玻璃棒。 第二玻璃棒被拉伸以形成第三玻璃棒。 然后可以在第三玻璃棒上形成另外的玻璃,以形成可从中拉出光纤的光纤预成型件。 或者,在使碱金属蒸气流动并在崩溃步骤之前,将第一玻璃棒从套筒管中移除,之后可以在第一玻璃棒上形成另外的玻璃以形成光纤预制件。
    • 3. 发明申请
    • APPARATUS AND METHODS FOR FUSION DRAWING A GLASS RIBBON
    • 用于融合绘图的装置和方法
    • WO2011090893A1
    • 2011-07-28
    • PCT/US2011/021255
    • 2011-01-14
    • CORNING INCORPORATEDBORATAV, Olus N.WHEDON, William A.
    • BORATAV, Olus N.WHEDON, William A.
    • C03B17/06
    • C03B17/064C03B17/067C03B17/068
    • An apparatus for fusion drawing a glass ribbon includes a forming wedge with a pair of downwardly inclined forming surface portions converging along a downstream direction to form a root. The apparatus further includes an edge director intersecting with at least one of the pair of downwardly inclined forming surface portions, a heating device configured to heat an interface of the molten glass in contact with the edge director, and a cooling device configured to extract heat from a portion of the glass ribbon flowing off of the edge director. Methods are also provided for heating an interface of the molten glass in contact with the edge director and for extracting heat from a portion of the glass ribbon flowing off of the edge director.
    • 用于熔融玻璃带的装置包括:具有沿着下游方向收敛以形成根部的一对向下倾斜的成形表面部分的成形楔块。 该装置还包括与所述一对向下倾斜的成形表面部分中的至少一个相交的边缘引导件,加热装置,其构造成加热与边缘导向器接触的熔融玻璃的界面;以及冷却装置,其被配置为从 玻璃带的一部分从边缘导向器流出。 还提供了用于加热与边缘导向器接触的熔融玻璃的界面并且用于从从边缘导向器流出的玻璃带的一部分提取热量的方法。