公开(公告)号：US06526782B1

公开(公告)日：2003-03-04

申请号：US09964548

申请日：2001-09-28

申请人： Reza Mossadegh ,  Brian Cole ,  Pablo Pureza ,  Jasbinder Sanghera ,  Shyam Bayya ,  Ishwar Aggarwal

发明人： Reza Mossadegh ,  Brian Cole ,  Pablo Pureza ,  Jasbinder Sanghera ,  Shyam Bayya ,  Ishwar Aggarwal

IPC分类号： C03B37022

CPC分类号： C03B37/023 ,  C03B2201/86 ,  C03C3/321 ,  C03C13/043

摘要： This invention pertains to apparatus and process for making core/clad glass fibers. The apparatus includes a central tube or receptacle connected at the top to a pressure controller and terminating in a reduced section; a side tube or receptacle positioned at about the level of the upper portion of the central tube; an outer tube or receptacle disposed around the bottom portion of the central tube terminating in a smaller section which is concentric with and spaced directly below the section of the central tube; a side arm connecting the side tube and the outer tube; and furnaces around the side, outer, and the reduced sections of the central and the outer tubes. The process includes the steps of disposing a solid core glass rod at a point removed from hot temperature that can cause crystallization in the core glass rod, disposing a solid clad glass rod at a point removed from the core glass rod, softening to the flowing condition the solid clad glass rod, transferring the softened clad glass to a lower point, the softened clad glass having a central void therethrough, heating the softened clad glass above its crystallization temperature, cooling the softened clad glass to a draw temperature, transferring the solid core glass rod into the central void in the softened clad glass, softening to the flowing condition the solid core glass rod with the heat from the softened and cooled clad glass, and drawing the core/clad glass fiber by allowing the clad and core glasses to flow in the form of a fiber.

摘要翻译： 本发明涉及制造芯/复合玻璃纤维的装置和方法。 该设备包括中央管或插座，其在顶部连接到压力控制器并终止于减小的部分; 位于中心管的上部的高度的侧管或容器; 设置在中心管的底部周围的外管或容器，其终止于与中心管的截面同心并间隔开的较小部分; 连接侧管和外管的侧臂; 并围绕中心管和外管的侧面，外部和还原部分进行熔炼。 该方法包括以下步骤：将固体芯玻璃棒放置在可以在芯玻璃棒中引起结晶的热温度的点处，将固体包覆玻璃棒设置在从芯玻璃棒上移除的点上，软化成流动条件 固体包覆玻璃棒，将软化的包覆玻璃转移到较低点，软化的复合玻璃具有中空空隙，将软化的包覆玻璃加热到其结晶温度以上，将软化的包覆玻璃冷却至拉伸温度，将固体核 将玻璃棒插入软化的包层玻璃中的中心空隙中，使来自软化和冷却的包覆玻璃的热量将固体芯玻璃棒软化成流动状态，并且通过使包层和芯玻璃流动 以纤维的形式。

公开(公告)号：US6021649A

公开(公告)日：2000-02-08

申请号：US256231

申请日：1999-02-24

申请人： Jasbinder S. Sanghera ,  Pablo Pureza ,  Ishwar D. Aggarwal ,  Reza Mossadegh

发明人： Jasbinder S. Sanghera ,  Pablo Pureza ,  Ishwar D. Aggarwal ,  Reza Mossadegh

IPC分类号： C03B37/023

CPC分类号： C03B37/023 ,  C03B2201/86

摘要： A core/clad glass optical fiber is made by melting a core glass rod and a adding glass rod in separate crucibles which are not concentric with respect to each other and the respective core and cladding glass melts passed out of contact with each other to a glass melt contacting zone proximate a fiber drawing orifice in which the cladding glass surrounds the core glass and a core/clad glass fiber is drawn. This process enables the clad glass fiber to be drawn directly from core and cladding glass rods without the need for a preform or forming a melt from glass chards or chunks, thereby reducing the cost of producing the fiber and also producing a glass clad optical fiber of high purity and excellent concentricity. Chalcogenide glass fibers having a concentricity of 100% have been made.

摘要翻译： 芯/包覆玻璃光纤通过将核心玻璃棒和包层玻璃棒熔化在彼此不同心的单独的坩埚中，并且相应的芯和包层玻璃熔体彼此接触而熔化成玻璃 靠近纤维拉伸孔的熔融接触区，其中包层玻璃围绕芯玻璃并且芯/包层玻璃纤维被拉伸。 该方法能够使包层玻璃纤维从芯和包层玻璃棒直接拉制，而不需要预成型件或从玻璃切块或块形成熔体，从而降低生产纤维的成本，并且还生产玻璃包覆光纤 纯度高，同心度极佳。 已经制造了同心度为100％的硫族化物玻璃纤维。

公开(公告)号：US5900036A

公开(公告)日：1999-05-04

申请号：US708017

申请日：1996-08-30

申请人： Reza Mossadegh ,  Jasbinder Sanghera ,  Ishwar Aggarwal

发明人： Reza Mossadegh ,  Jasbinder Sanghera ,  Ishwar Aggarwal

IPC分类号： C03B37/023 ,  C03B37/027 ,  C03B37/029 ,  C03B37/022

CPC分类号： C03B37/02754 ,  C03B37/023 ,  C03B37/029 ,  C03B2201/82 ,  C03B2201/86 ,  C03B2203/24 ,  C03B2205/10 ,  C03B2205/14 ,  C03B2205/16

摘要： A vertically disposed apparatus used to make core-clad optical fibers inces an inner elongated cylinder removably closed at the top and provided at the bottom with an inner exit port of a smaller diameter than the inner cylinder and an outer cylinder, disposed around the inner cylinder, removably closed at the top and provided at the bottom with an outer exit port of a smaller diameter than the outer cylinder. The inner exit port is of a smaller diameter than the outer exit port and is disposed directly above the outer exit port. The apparatus also includes a heater for heating the inner and outer cylinders and acces to the inner and the outer cylinders for individually pressurizing inner and outer cylinders. The process by which the core-clad optical fibers are made includes the steps of placing a solid glass core rod into the inner cylinder of the apparatus described above, placing a solid glass cladding tube into the outer cylinder, melting the core rod and the cladding tube, quickly cooling the molten core rod and cladding tube to the drawing temperature, individually pressurizing the molten core rod and cladding tube, and drawing the core-clad optical fiber through the exit ports.

摘要翻译： 用于制造包芯光纤的垂直设置的装置包括：内部细长圆筒，其在顶部可拆卸地封闭并且设置在底部，具有比内筒更小直径的内出口和设置在内筒周围的外筒 在顶部可拆卸地封闭，并且在底部设置有比外筒小直径的外出口。 内出口的直径比外出口小，直接位于外出口的正上方。 该装置还包括用于加热内筒和外筒的加热器，并且与内筒和外筒相接触，用于单独地加压内筒和外筒。 制造芯包覆光纤的过程包括以下步骤：将实心玻璃芯棒放置在上述设备的内筒中，将固体玻璃包层管放置在外筒中，熔化芯棒和包层 将熔芯和包层管快速冷却至拉伸温度，分别对熔芯和包层管进行加压，并通过出口拉出芯包覆光纤。

公开(公告)号：US5055120A

公开(公告)日：1991-10-08

申请号：US498453

申请日：1990-03-20

申请人： Danh C. Tran ,  Reza Mossadegh ,  Nicholas Garito ,  Mohamad Farid

发明人： Danh C. Tran ,  Reza Mossadegh ,  Nicholas Garito ,  Mohamad Farid

IPC分类号： C03B37/012 ,  C03B37/027 ,  C03B37/029

CPC分类号： C03B37/01268 ,  C03B37/01271 ,  C03B37/027 ,  C03B37/029 ,  C03B2201/82 ,  C03B2205/16 ,  Y10S65/16 ,  Y10S65/90

摘要： Improved fluoride glass optical fibers are produced by a process introducing several improvements in the production of fluoride glass preforms and the drawing of fibers therefrom. Reduced bubble formation and crystallization are obtained by vertically spinning a fluoride glass melt within a glass cladding tube at a high rotational speed, or alternatively, pouring a flouride glass core melt into a cladding tube while slowly raising the mold from an inclined position to a vertical position, or alternatively, introducing a core tube inside a cladding tube. The production of fibers is enhanced if at least one production phase, i.e., preform formation or fiber drawing, is conducted in an atmosphere containing reactive gases that scavenge molecules that could otherwise react with, hydrolyze and oxidize the fluoride glass. The disclosure also describes several devices uniquely useful in the process of the present invention. In another aspect of the present invention, fluoride glass fibers may be clad with a fluoropolymer which is coated with a polymerizable resin.

摘要翻译： 改进的氟化物玻璃光纤通过在氟化物玻璃预成型件的生产中的几个改进和从其中拉出纤维的方法来生产。 通过在玻璃包覆管内以高转速垂直旋转氟化物玻璃熔体，或者将玻璃芯熔融物倾倒到包层管中，同时将模具从倾斜位置缓慢升高至垂直方向 位置，或者在芯管内部引入芯管。 如果在含有反应气体的气氛中进行至少一个生产阶段，即预型体形成或纤维拉伸，则可以增加纤维的生产，所述反应性气体清除可能会与氟化物玻璃反应，水解和氧化的分子。 本公开还描述了在本发明的方法中独特有用的几种装置。 在本发明的另一方面，氟化物玻璃纤维可以用涂覆有可聚合树脂的含氟聚合物包覆。

公开(公告)号：US07197899B2

公开(公告)日：2007-04-03

申请号：US10339255

申请日：2003-01-06

申请人： Reza Mossadegh ,  Brian Cole ,  Pablo Pureza ,  Jasbinder Sanghera ,  Shyam Bayya ,  Ishwar Aggarwal

发明人： Reza Mossadegh ,  Brian Cole ,  Pablo Pureza ,  Jasbinder Sanghera ,  Shyam Bayya ,  Ishwar Aggarwal

IPC分类号： C03B37/075

CPC分类号： C03B37/023 ,  C03B2201/86 ,  C03C3/321 ,  C03C13/043

摘要： A process includes the steps of disposing a solid core glass rod at a point removed from hot temperature that can cause crystallization in the core glass rod, disposing a solid clad glass rod at a point removed from the core glass rod; softening to the flowing condition the solid clad glass rod, transferring the softened clad glass to a lower point, the softened clad glass having a central void therethrough, heating the softened clad glass above its crystallization temperature, cooling the softened clad glass to a draw temperature, transferring the solid core glass rod into the central void in the softened glad glass, softening to the flowing condition the solid core glass rod with the heat from the softened and cooled clad glass, and drawing the core/clad, glass fiber by allowing the clad and core glasses to flow in the form of a fiber.

摘要翻译： 一种方法包括以下步骤：将固体芯玻璃棒放置在可以在芯玻璃棒中引起结晶的热温度的位置处，将固体包覆玻璃棒设置在从芯玻璃棒上移除的点上; 软化到流动条件下的固体包覆玻璃棒，将软化的包覆玻璃转移到较低点，软化的包覆玻璃具有通过其中心的空隙，将软化的包覆玻璃加热到其结晶温度以上，将软化的包覆玻璃冷却至拉伸温度 将固体芯玻璃棒转移到软化玻璃中的中心空隙中，用软化和冷却的复合玻璃的热量将固体芯玻璃棒软化成流动状态，并通过允许将芯/玻璃纤维 包芯和芯玻璃以纤维的形式流动。

公开(公告)号：US5879426A

公开(公告)日：1999-03-09

申请号：US695444

申请日：1996-08-12

申请人： Jasbinder S. Sanghera ,  Pablo Pureza ,  Ishwar D. Aggarwal ,  Reza Mossadegh

发明人： Jasbinder S. Sanghera ,  Pablo Pureza ,  Ishwar D. Aggarwal ,  Reza Mossadegh

IPC分类号： C03B37/023

CPC分类号： C03B37/023 ,  C03B2201/86

摘要： A core/clad glass optical fiber is made by melting a core glass rod and a adding glass rod in separate crucibles which are not intersecting with respect to each other and the respective core and cladding glass melts passed out of contact with each other to a glass melt contacting zone proximate a fiber drawing orifice in which the cladding glass surrounds the core glass and a core/clad glass fiber is drawn. This process enables the clad glass fiber to be drawn directly from core and cladding glass rods without the need for a preform or forming a melt from glass chards or chunks, thereby reducing the cost of producing the fiber and also producing a glass clad optical fiber of high purity and excellent concentricity. Chalcogenide glass fibers having a concentricity of 100% have been made.

摘要翻译： 核心/复合玻璃光纤通过将核心玻璃棒和包层玻璃棒熔化在不相互相交的单独的坩埚中，并且相应的芯和包层玻璃熔体彼此不相接触而熔化成玻璃 靠近纤维拉伸孔的熔融接触区，其中包层玻璃围绕芯玻璃并且芯/包层玻璃纤维被拉伸。 该方法能够使包层玻璃纤维从芯和包层玻璃棒直接拉制，而不需要预成型件或从玻璃切块或块形成熔体，从而降低生产纤维的成本，并且还生产玻璃包覆光纤 纯度高，同心度极佳。 已经制造了同心度为100％的硫族化物玻璃纤维。

公开(公告)号：US4874222A

公开(公告)日：1989-10-17

申请号：US160545

申请日：1988-02-25

申请人： Lubos J. B. Vacha ,  Peter C. Schultz ,  Cornelius T. Moynihan ,  Satyabrata Raychaudhuri ,  Ken C. Cadien ,  Barry B. Harbison ,  Reza Mossadegh

发明人： Lubos J. B. Vacha ,  Peter C. Schultz ,  Cornelius T. Moynihan ,  Satyabrata Raychaudhuri ,  Ken C. Cadien ,  Barry B. Harbison ,  Reza Mossadegh

IPC分类号： C03C13/04 ,  C03C25/10 ,  C03C25/22 ,  C23C16/26 ,  C23C16/30 ,  C23C16/32 ,  C23C16/34 ,  C23C16/38 ,  C23C16/40 ,  G02B6/10 ,  G02B6/44

CPC分类号： C03C25/1075 ,  C03C13/042 ,  C03C13/048 ,  C03C25/107 ,  C03C25/108 ,  C03C25/223 ,  C23C16/26 ,  C23C16/30 ,  C23C16/32 ,  C23C16/34 ,  C23C16/38 ,  C23C16/405 ,  G02B6/102 ,  G02B6/443 ,  Y10T428/2938 ,  Y10T428/294 ,  Y10T428/2949

摘要： A hermetically sealed optical fiber product comprising a fluoride or other non-silica based glass optical fiber and a hermetic coating of carbon, a metal, a fluoride, a metalloid or a ceramic compound in a thickness sufficient to impart moisture resistance to the optical fiber product.

摘要翻译： 一种气密密封的光纤产品，其包含氟化物或其它非二氧化硅基玻璃光纤和气密涂层的碳，金属，氟化物，准金属或陶瓷化合物，其厚度足以赋予光纤产品耐湿性 。