公开(公告)号：US06792774B2

公开(公告)日：2004-09-21

申请号：US10379690

申请日：2003-03-06

申请人： Laurent Calvo ,  Cyril Gallardo

发明人： Laurent Calvo ,  Cyril Gallardo

IPC分类号： F25J100

CPC分类号： C03B37/01846 ,  B01D53/002 ,  C03B19/1446 ,  C03B37/0144

摘要： A method of treating gaseous waste from an optical fiber preform fabrication unit containing halogenated compounds includes a step of forming a liquid effluent from the gaseous waste by condensing the gaseous waste. The gaseous waste is preferably condensed by cooling it. Plant for implementing the method includes a condenser and a container for collecting condensate. The condenser is preferably a refrigerating device. The plant can further include a soot box.

摘要翻译： 从含有卤化化合物的光纤预制棒制造单元处理气体废物的方法包括通过冷凝气态废物从气体废料形成液体流出物的步骤。 气体废物优选通过冷却而冷凝。 用于实施该方法的装置包括冷凝器和用于收集冷凝物的容器。 冷凝器优选为冷藏装置。 工厂可以进一步包括一个烟灰箱。

公开(公告)号：US06769276B1

公开(公告)日：2004-08-03

申请号：US09628908

申请日：2000-07-31

申请人： Jason A. Kay ,  David S. Kerr ,  Peter M. Mueller ,  Ivan Pawlenko ,  Larry Samson

发明人： Jason A. Kay ,  David S. Kerr ,  Peter M. Mueller ,  Ivan Pawlenko ,  Larry Samson

IPC分类号： C03B23045

CPC分类号： C03B23/092 ,  C03B37/01846 ,  Y02P40/57

摘要： Apparatus for shaping a selected end region of a hollow cylindrical glass tube includes an internal mold placed within the selected end region for supporting the walls of the tube and controlling the shape of the internal surface of selected end region of the tube, during the period of time heat is applied to the tube and the tube is being shaped. In one embodiment the internal mold has a variable configuration and may be selectively set to an extended (open) configuration or to a collapsed (closed) configuration. With the internal mold set to its extended configuration, sufficient heat may be applied to the selected end region to render it malleable. Then, compression forces may be applied to the exterior surface of the tube to press the inner surface of the selected end region of the tube against the outer surface of the internal mold, causing the inner surface of the selected end region to conform to the outer surface of the internal mold. After the tube is shaped the internal mold may be set to its collapsed configuration and removed from the tube.

摘要翻译： 用于成形中空圆柱形玻璃管的选定端部区域的装置包括放置在所选择的端部区域内的内部模具，用于支撑管壁并控制管的选定端部区域的内表面的形状， 时间的热被施加到管并且管正在成形。 在一个实施例中，内部模具具有可变构造，并且可以选择性地设置为延伸（开放）构造或折叠（封闭）构造。 在内部模具设置为其延伸构造的情况下，可以将足够的热量施加到所选择的端部区域以使其延展。 然后，可以将压缩力施加到管的外表面，以将管的选定端部区域的内表面压靠在内模的外表面上，使所选择的端部区域的内表面与外部 内模表面。 在管成形之后，内部模具可以被设置成其折叠构型并从管中移除。

公开(公告)号：US4816050A

公开(公告)日：1989-03-28

申请号：US472063

申请日：1983-03-04

申请人： Giacomo Roba

发明人： Giacomo Roba

IPC分类号： C03B37/018 ,  G02B6/00

CPC分类号： C03B37/01861 ,  C03B37/01807 ,  C03B37/01846

摘要： In order to prevent an uncontrolled collapse of a quartz tube whose inner surface is being coated with a vitrifiable substance in making a preform or parison of an optical fiber, one or more streams of carrier gas entraining the ingredients of the coating substance through the quartz tube are supplemented by a stream of supplemental carrier gas whose flow is being continuously controlled to keep the overall mass-flow rate substantially constant. The outer tube diameter is photoelectrically monitored and incipient changes thereof are compensated by controlling a flow of additional carrier or inert gas which does not pass through the tube but joins the traversing gas flow at the tube outlet, inside a solids separator with a restricted exit aperture, to modify the pressure differential across the tube wall.

摘要翻译： 为了防止在制造光纤的预成型件或型坯时内表面被玻璃化物质涂覆的石英管的不受控制的塌陷，一个或多个携带涂料的成分的载气流通过石英管 补充载气，其流动被连续地控制以保持总体质量流速基本上恒定。 外管直径被光电监测，其初始变化通过控制不通过管的附加载体或惰性气体的流动来补偿，但是在具有限制的出口孔的固体分离器内的管出口处连接穿过气流 ，以改变跨越管壁的压力差。

公开(公告)号：US4578253A

公开(公告)日：1986-03-25

申请号：US575600

申请日：1984-01-31

申请人： Roger F. Gill ,  Pundi L. Narasimham

发明人： Roger F. Gill ,  Pundi L. Narasimham

IPC分类号： B01D53/46 ,  B01D33/00 ,  B01D36/00 ,  B01D37/00 ,  B01D53/34 ,  B01D53/64 ,  B01D53/77 ,  B01D61/14 ,  C03B37/014 ,  C03B37/018 ,  C03B37/025 ,  C03B37/075

CPC分类号： C03B37/01846 ,  B01D36/00 ,  B01D53/46 ,  B01D61/147 ,  B01D61/18 ,  B01D63/06 ,  C03B37/0144 ,  Y10S261/46

摘要： The effluent of a process for making a preform from which an optical fiber is drawn is directed into a scrubber (40) of a loop (20) where it is treated with an aqueous solution to provide a solvent mixture which comprises particulates and a solvent solution including germanium. Subsequently, the solvent mixture is moved into a first filter system (55) which provides a filtrate free of particulates above a first size that is returned to the scrubber for reuse and a residue. Then the residue from the first filter system is moved into a second filter system (80) which provides a filtrate free of particulates larger than a second size that is smaller than the first size and a residue. The filtrate from the second filter system also is returned to the scrubber for reuse while the residue from the second filter system is recirculated therethrough. When the germanium concentration reaches a predetermined level, portions of the residue from the second filter system are withdrawn and subsequently treated with a precipitating agent to recover germanium.

摘要翻译： 用于制造预成型体的方法的流出物被引导到环（20）的洗涤器（40）中，其中用水溶液处理，以提供包含颗粒和溶剂溶液的溶剂混合物 包括锗。 随后，将溶剂混合物移入第一过滤系统（55），该第一过滤器系统（55）提供不含高于第一大小的微粒的滤液，其返回到洗涤器中用于再利用和残留。 然后将来自第一过滤系统的残余物移入第二过滤器系统（80），其提供不含比第一尺寸小的第二尺寸的颗粒的滤液和残余物。 来自第二过滤器系统的滤液也被返回到洗涤器中以便重新使用，而来自第二过滤器系统的残余物通过其再循环。 当锗浓度达到预定水平时，取出来自第二过滤系统的残余物的一部分，然后用沉淀剂处理以回收锗。

公开(公告)号：US09594210B2

公开(公告)日：2017-03-14

申请号：US15188202

申请日：2016-06-21

申请人： Corning Incorporated

发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Hazel Benton Matthews, III ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC分类号： G02B6/036 ,  G02B6/02 ,  C03C13/04

CPC分类号： G02B6/02019 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/018 ,  C03B37/01846 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2207/32 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2213/00 ,  G02B6/02009 ,  G02B6/02238 ,  G02B6/02395 ,  G02B6/03627 ,  G02B6/0365

摘要： An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.

摘要翻译： 光纤有效面积大，弯曲损耗低，衰减小。 光纤包括芯，内包层区和外包层区。 核心区域包括空间均匀的上升物质，以最小化瑞利散射的低和被配置成提供大的有效面积的相对折射率和半径。 内包层区域具有大的沟槽体积以最小化弯曲损耗。 芯可以用Cl掺杂，并且内包层区可以掺杂有F.

公开(公告)号：US20170003445A1

公开(公告)日：2017-01-05

申请号：US15188202

申请日：2016-06-21

申请人： Corning Incorporated

发明人： Dana Craig Bookbinder ,  Ming-Jun Li ,  Hazel Benton Matthews, III ,  Snigdharaj Kumar Mishra ,  Pushkar Tandon

IPC分类号： G02B6/02 ,  C03C13/04 ,  G02B6/036

CPC分类号： G02B6/02019 ,  C03B37/01446 ,  C03B37/01453 ,  C03B37/018 ,  C03B37/01846 ,  C03B2201/08 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2203/22 ,  C03B2203/23 ,  C03B2207/32 ,  C03C3/06 ,  C03C13/045 ,  C03C13/046 ,  C03C2201/11 ,  C03C2201/12 ,  C03C2213/00 ,  G02B6/02009 ,  G02B6/02238 ,  G02B6/02395 ,  G02B6/03627 ,  G02B6/0365

摘要： An optical fiber with large effective area, low bending loss and low attenuation. The optical fiber includes a core, an inner cladding region, and an outer cladding region. The core region includes a spatially uniform updopant to minimize low Rayleigh scattering and a relative refractive index and radius configured to provide large effective area. The inner cladding region features a large trench volume to minimize bending loss. The core may be doped with Cl and the inner cladding region may be doped with F.

摘要翻译： 光纤有效面积大，弯曲损耗低，衰减小。 光纤包括芯，内包层区和外包层区。 核心区域包括空间均匀的上升物质，以最小化瑞利散射的低和被配置成提供大的有效面积的相对折射率和半径。 内包层区域具有大的沟槽体积以最小化弯曲损耗。 芯可以用Cl掺杂，并且内包层区可以掺杂有F.

公开(公告)号：US07854148B2

公开(公告)日：2010-12-21

申请号：US11612936

申请日：2006-12-19

申请人： Mattheus Jacobus Nicolaas Van Stralen ,  Martinus Johannes Marinus Jozeph Swarts ,  Igor Milicevic ,  Marco Korsten

发明人： Mattheus Jacobus Nicolaas Van Stralen ,  Martinus Johannes Marinus Jozeph Swarts ,  Igor Milicevic ,  Marco Korsten

IPC分类号： C03B37/018

CPC分类号： C03B37/01846

摘要： The present invention relates to a device for manufacturing an optical preform by means of an internal vapour deposition process, said device comprising an energy source and a substrate tube, which substrate tube comprises a supply side for supplying glass-forming precursors and a discharge side for discharging constituents that have rot been deposited on the interior of the substrate tube, said energy source being movable along the length of the substrate tube between a point of reversal at the supply side and a point of reversal at the discharge side.

摘要翻译： 本发明涉及一种用于通过内部气相沉积工艺制造光学预成型件的装置，所述装置包括能量源和衬底管，该衬底管包括用于供应玻璃形成前体的供应侧和用于 排出已经沉积在衬底管内部的成分，所述能量源可以沿着衬底管的长度在供给侧的反转点与排出侧的反转点之间移动。

公开(公告)号：US06789398B1

公开(公告)日：2004-09-14

申请号：US09497045

申请日：2000-02-02

申请人： Bassel H. Daoud ,  David S. Kerr ,  Peter M. Mueller ,  Ivan Pawlenko ,  Larry Samson

发明人： Bassel H. Daoud ,  David S. Kerr ,  Peter M. Mueller ,  Ivan Pawlenko ,  Larry Samson

IPC分类号： C03B1100

CPC分类号： C03B23/092 ,  C03B37/01846 ,  Y02P40/57 ,  Y10S65/09

摘要： A heat source is formed within one piece of a multi-piece mold designed to shape a glass tube. The one piece of the mold can then be used as a source of intense heat to render the glass malleable and to also contribute to shaping the tube in conformance with the mold. In one embodiment, the heat source includes channels formed throughout the one piece of mold for distributing a gas therethrough with jets of gas emanating from the inner surface of the mold piece for heating the tube to be shaped to a desired temperature. In apparatus embodying the invention, there is no need for a separate torch and for moving the torch during the shaping process. Also, in accordance with the invention, better control of the heat supplied to the tube being shaped is obtained.

摘要翻译： 热源形成在设计成成形玻璃管的多片模具的一片内。 然后可以将一片模具用作强烈的热源，以使玻璃具有延展性并且还有助于使模具成形。 在一个实施例中，热源包括在整个模具中形成的通道，用于通过其中的气体从模具的内表面发出的气体喷射，以将待成形的管加热到期望的温度。 在实施本发明的装置中，在整形过程中不需要单独的割炬和用于移动割炬。 而且，根据本发明，可以更好地控制供给到成形管的热量。

公开(公告)号：US20030061990A1

公开(公告)日：2003-04-03

申请号：US09968848

申请日：2001-10-03

申请人： ALCATEL

发明人： Christopher D. Shay

IPC分类号： C23C016/00

CPC分类号： C03B37/01846

摘要： An optical fiber preform fabricating device is disclosed. The device includes a particle remover for removing soot from a carrier gas, the soot being particles that are not deposited on a substrate tube. The device also includes a soot collector communicating with the particle remover for containing the soot removed by the particle remover. A control valve communicates with the particle remover, and adjusts a pressure within the substrate tube.

摘要翻译： 公开了一种光纤预制棒制造装置。 该装置包括用于从载气中除去烟灰的颗粒去除剂，该烟灰是不沉积在基材管上的颗粒。 该装置还包括与颗粒去除器连通的烟灰收集器，用于容纳由颗粒去除剂除去的烟灰。 控制阀与颗粒去除器连通，并调节衬底管内的压力。

公开(公告)号：US06238462B1

公开(公告)日：2001-05-29

申请号：US09353202

申请日：1999-07-14

申请人： Steven A. Dunwoody ,  Lei Jiang ,  Dale R. Powers ,  Freddie G. Prince

发明人： Steven A. Dunwoody ,  Lei Jiang ,  Dale R. Powers ,  Freddie G. Prince

IPC分类号： B01D5314

CPC分类号： B01D53/64 ,  C03B19/1446 ,  C03B37/0144 ,  C03B37/01846 ,  C03B2201/31

摘要： A method is disclosed for recovering germanium from a gaseous mixture which includes a germanium-containing compound in vapor or particulate form, acid in vapor form, and water vapor. The gaseous mixture is contacted with a liquid containing water under conditions effective to dissolve the germanium-containing compound in the liquid. The acidity of the resulting liquid mixture is increased under conditions effective to vaporize the germanium-containing compound. The vaporized germanium-containing compound is contacted with one or more aqueous solutions under conditions effective to dissolve and precipitate the germanium-containing compound in at least one of the one or more aqueous solutions, and the resulting precipitate is separated from the at least one of the one or more aqueous solutions. The methods described herein are particularly well suited for recovering germanium from the waste gases produced during optical waveguide manufacturing processes. Germanium recovered by this method can thereafter be used in the production of semiconductors, optical waveguide fibers and optical components.

摘要翻译： 公开了一种用于从气体混合物中回收锗的方法，所述气体混合物包括蒸气或颗粒形式的含锗化合物，蒸汽形式的含酸化合物和水蒸气。 在有效溶解含锗化合物的液体中的条件下，气态混合物与含有液体的液体接触。 所得液体混合物的酸度在有效蒸发含锗化合物的条件下增加。 蒸发的含锗化合物在有效溶解和沉淀至少一种一种或多种水溶液中的含锗化合物的条件下与一种或多种水溶液接触，并将所得沉淀物从至少一种 一种或多种水溶液。 本文描述的方法特别适用于从光波导制造过程中产生的废气中回收锗。 然后通过该方法回收的锗可以用于半导体，光波导纤维和光学部件的制造。