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    Method of making an optical fiber preform
    1.
    发明申请
    Method of making an optical fiber preform 审中-公开
    制造光纤预制棒的方法

    公开(公告)号：US20050144986A1

    公开(公告)日：2005-07-07

    申请号：US10750384

    申请日：2003-12-30

    申请人： Dana Bookbinder ,  Lisa Chacon ,  Adam Ellison ,  Gregory Gausman ,  Michael Murtagh ,  William Whedon

    发明人： Dana Bookbinder ,  Lisa Chacon ,  Adam Ellison ,  Gregory Gausman ,  Michael Murtagh ,  William Whedon

    IPC分类号： C03B37/012 ,  C03B37/028

    CPC分类号： C03B37/01211 ,  C03B2201/50 ,  C03B2203/29

    摘要： A method for manufacturing an 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 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.

    摘要翻译： 一种用于制造光纤预制件和纤维的方法。 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，并且在套管和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。

    Substantially dry, silica-containing soot, fused silica and optical fiber soot preforms, apparatus, methods and burners for manufacturing same
    2.
    发明申请
    Substantially dry, silica-containing soot, fused silica and optical fiber soot preforms, apparatus, methods and burners for manufacturing same 审中-公开
    基本干燥的含二氧化硅的烟灰，熔融石英和光纤烟炱预制件，用于制造相同材料的装置，方法和燃烧器

    公开(公告)号：US20050120752A1

    公开(公告)日：2005-06-09

    申请号：US11033001

    申请日：2005-01-10

    申请人： John Brown ,  Lisa Chacon ,  Steven Dawes ,  V. Srikant ,  Pushkar Tandon ,  Joseph Whalen

    发明人： John Brown ,  Lisa Chacon ,  Steven Dawes ,  V. Srikant ,  Pushkar Tandon ,  Joseph Whalen

    IPC分类号： C03B19/14 ,  C03B37/012 ,  C03B37/014 ,  C03B37/018

    CPC分类号： C03C3/06 ,  C03B19/1407 ,  C03B19/1415 ,  C03B19/1423 ,  C03B19/1453 ,  C03B37/01202 ,  C03B37/01406 ,  C03B37/01413 ,  C03B37/0142 ,  C03B37/0146 ,  C03B2201/12 ,  C03B2203/22 ,  C03B2207/02 ,  C03B2207/06 ,  C03B2207/08 ,  C03B2207/14 ,  C03B2207/20 ,  C03B2207/30 ,  C03B2207/42 ,  C03B2207/70 ,  C03B2207/81

    摘要： Methods, apparatus and precursors for producing substantially water-free silica soot, preforms and glass. The methods and apparatus make substantially water-free fused silica preforms or glass by removing water as a reaction product, removing water from the atmosphere, removing water from the transport process, or combinations thereof. In a first embodiment, substantially water-free soot, preforms or glass are achieved by using a hydrogen-free fuel, such as carbon monoxide, in the deposition process. In another embodiment, a soot producing burner has parameters that enable operation on a substantially hydrogen-free fuel. End burners, which minimize water production, are also described. Such water-free methods are useful in depositing fluorine-doped soot because of the low water present and the efficiency in which fluorine is incorporated. In another embodiment, glassy barrier layer methods and apparatus are described for minimizing dopant migration, especially fluorine. Laser and induction methods and apparatus for forming the barrier layer are depicted. A chlorine, fluorine and silica precursor, such as chlorofluorosilane, may be utilized to form fluorinated soot. Other methods and apparatus are directed to combinations of conventional and substantially water-free processes. One embodiment is directed to combustion enhancing additives for addition to the substantially hydrogen-free fuels. The methods and apparatus in accordance with the invention are particularly useful for producing photomask substrates and optical fiber preforms.

    摘要翻译： 用于生产基本上无水的二氧化硅烟灰，预成型件和玻璃的方法，装置和前体。 该方法和装置通过除去水作为反应产物，从大气中除去水分，从运输过程中除去水或其组合，从而使基本上无水的熔融二氧化硅预制件或玻璃。 在第一实施方案中，在沉积工艺中通过使用无氢燃料如一氧化碳来实现基本上无水的烟灰，预型体或玻璃。 在另一个实施方案中，产生烟灰的燃烧器具有能够在基本上无氢燃料上操作的参数。 还描述了最小化水的生产的终端燃烧器。 这种无水方法由于存在低的水和掺入氟的效率而用于沉积氟掺杂烟灰。 在另一个实施例中，描述了用于最小化掺杂剂迁移，特别是氟的玻璃状阻挡层方法和装置。 描述了用于形成阻挡层的激光和感应方法和装置。 可以使用氯，氟和二氧化硅前体，例如氯氟硅烷来形成氟化烟灰。 其它方法和装置涉及常规和基本无水方法的组合。 一个实施方案涉及用于加入基本上无氢燃料的燃烧增强添加剂。 根据本发明的方法和装置特别适用于制造光掩模基片和光纤预制棒。

    Fluorination utilizing thermodynamically unstable fluorides and fluoride salts thereof
    5.
    发明授权
    Fluorination utilizing thermodynamically unstable fluorides and fluoride salts thereof 失效
    使用热力学不稳定的氟化物及其氟化物氟进行氟化

    公开(公告)号：US6160158A

    公开(公告)日：2000-12-12

    申请号：US26473

    申请日：1998-02-19

    申请人： Neil Bartlett ,  J. Marc Whalen ,  Lisa Chacon

    发明人： Neil Bartlett ,  J. Marc Whalen ,  Lisa Chacon

    IPC分类号： C07B39/00 ,  C07C17/04 ,  C07C17/10 ,  C07C253/30 ,  C07C255/10

    CPC分类号： C07B39/00 ,  C07C17/04 ,  C07C17/10 ,  C07C253/30 ,  C07C255/10

    摘要： A method for fluorinating a carbon compound or cationic carbon compound utilizes a fluorination agent selected from thermodynamically unstable nickel fluorides and salts thereof in liquid anhydrous hydrogen fluoride. The desired carbon compound or cationic organic compound to undergo fluorination is selected and reacted with the fluorination agent by contacting the selected organic or cationic organic compound and the chosen fluorination agent in a reaction vessel for a desired reaction time period at room temperature or less.

    摘要翻译： 氟化碳化合物或阳离子碳化合物的方法使用选自热力学不稳定的氟化镍的氟化剂及其盐在液体无水氟化氢中。 选择要进行氟化的所需碳化合物或阳离子有机化合物，并通过使所选择的有机或阳离子有机化合物和选择的氟化剂在室温或更低的反应容器中反应所需的反应时间，使其与氟化剂反应。