公开(公告)号：US20240217860A1

公开(公告)日：2024-07-04

申请号：US18558491

申请日：2022-05-05

申请人： HERAEUS QUARTZ NORTH AMERICA LLC ,  HERAEUS QUARZGLAS BITTERFELD GMBH & CO. KG

发明人： Qiulin MA ,  Kai Huei CHANG ,  Kay SCHUSTER ,  Michael LORENZ

IPC分类号： C03B37/012 ,  C03B37/07

CPC分类号： C03B37/01222 ,  C03B37/01231 ,  C03B37/01245 ,  C03B37/01257 ,  C03B37/0126 ,  C03B37/07

摘要： A process for manufacturing an MCF preform having a center longitudinal axis, a plurality of core rods each positioned in a respective core hole and extending along the axis, and a common cladding covering each of the plurality of core rods. The process includes the following steps. A cylinder is provided which will form the cladding of the preform and may have a center core hole. Peripheral core holes are created in the cylinder extending along the longitudinal axis. Each of a plurality of core rods is inserted into a respective peripheral core hole. The cylinder with the core rods inserted in the respective core holes is heated by exposing the cylinder and core rods to a heating element, thereby integrating the core rods and the cylinder and forming the preform, wherein the position error of the core holes with respect to the diameter of the preform is ≤0.6%.

公开(公告)号：US20230312390A1

公开(公告)日：2023-10-05

申请号：US18207376

申请日：2023-06-08

申请人： CORNING INCORPORATED

发明人： Raymond David Groh ,  Joseph Leroy Morse ,  Bradley Kent Shepard ,  Ian Anthony Smith ,  Eric Wade Thornton

IPC分类号： C03B37/012 ,  F27B5/00 ,  F27B5/13

CPC分类号： C03B37/01257 ,  C03B37/0124 ,  C03B37/0126 ,  F27B5/00 ,  F27B5/13

摘要： A system and methods are described herein for preheating a preform in a preheater furnace and then transferring the preheated preform to a consolidation furnace for chemical treatment and sintering the preform into a clear glass which can be drawn into optical fiber. In addition, the preheater furnace is described herein which is configured to heat the preform per a predetermined heat-profile until the preform is uniformly heated to a temperature above 1000° C.

公开(公告)号：US20230174407A1

公开(公告)日：2023-06-08

申请号：US17924146

申请日：2020-07-20

申请人： JIANGSU ETERN CO., LTD.

发明人： Yonglin LUO ,  Longfei WANG ,  Fan LI ,  Lihong SUI

IPC分类号： C03B37/012

CPC分类号： C03B37/01251 ,  C03B37/01257 ,  C03B37/0126

摘要： The application provides a method for automatically processing a conical tip of an optical fiber preform, including: step 10: suspending an optical fiber preform requiring conical tip processing on a suspension component, where the optical fiber preform moves downward vertically along with the suspension component; step 20: arranging a furnace body below the suspension component, where a preset depth is set inside the furnace body, and after the optical fiber preform moves to the preset depth inside the furnace body, the furnace body is heated; step 30: arranging an automatic cutting component below the furnace body, where a preset temperature is set inside the furnace body, after a temperature inside the furnace body reaches the preset temperature, a bottom of the furnace body is opened to make the optical fiber preform melt to form a conical tip, and the automatic cutting component cuts the molten conical tip.

公开(公告)号：US20230167002A1

公开(公告)日：2023-06-01

申请号：US18070016

申请日：2022-11-28

申请人： CORNING INCORPORATED

发明人： Dane Alphanso Christie ,  Richard Michael Fiacco ,  Rostislav Radiyevich Khrapko ,  Ming-Jun Li ,  Craig Daniel Nie

IPC分类号： C03B37/012 ,  G02B6/02

CPC分类号： C03B37/01211 ,  G02B6/02395 ,  C03B37/0126 ,  C03B2201/12 ,  C03B2201/28 ,  C03B2201/31 ,  C03B2201/50

摘要： The present invention relates to a method of forming an optical fiber precursor including: forming an alkali metal doped tube; inserting an optical fiber core rod within the alkali metal doped tube; forming a cladding jacket around the alkali metal doped tube; and diffusing an alkali metal from the alkali metal doped tube through a surface of the optical fiber core rod. The present invention further relates to an optical fiber preform having: an optical fiber core rod; an alkali metal doped tube surrounding the optical fiber core rod; and a cladding jacket surrounding the alkali metal doped tube.

公开(公告)号：US11649185B2

公开(公告)日：2023-05-16

申请号：US16739988

申请日：2020-01-10

申请人： Heraeus Quartz North America LLC

发明人： Qiulin Ma ,  Kai Huei Chang

IPC分类号： C03B9/36 ,  C03B9/38 ,  C03B17/04 ,  C03B37/012 ,  C03B37/07

CPC分类号： C03B37/0126 ,  C03B37/01257 ,  C03B37/07

摘要： An automated large outside diameter preform tipping process. A zone of the preform is heated inside a furnace and softened. The preform tip is shaped and the process is controlled by the movement of the glass above and below the heating zone and by sensing the weight of the lower part of the preform, which in effect is a measure of the viscosity of the softened material. Once the correct viscosity is reached, the bottom holder is moved away from the top holder with a non-linear, accelerated velocity profile (derived from the FEM simulation of glass flow) which is precisely programmed and controlled so that the preform tip is optimally shaped (usually short and sharp tipped) with minimum waste and waveguide distortion when drawn into a fiber. The same concept of the non-linear, accelerated velocity profile can also be applied to other tipping processes such as horizontal preform tipping processes.

公开(公告)号：US09108877B2

公开(公告)日：2015-08-18

申请号：US13922252

申请日：2013-06-20

申请人： Shin-Etsu Chemical Co., Ltd.

发明人： Tetsuya Otosaka

IPC分类号： C03B37/03 ,  C03B37/012

CPC分类号： C03B37/032 ,  C03B37/0124 ,  C03B37/0126

摘要： Provided is a glass base material elongation method for elongating a glass base material with a large diameter to manufacture a glass rod with a smaller diameter, the method comprising, when elongating a glass base material that has a transparent glass tapered portion at one end of a trunk portion and a glass tapered portion including a non-transparent glass portion at the other end of the trunk portion, prior to the elongation, fusing a hanging dummy to an end of the transparent glass tapered portion, setting the hanging dummy in communication with a feeding mechanism, inserting the glass base material into a heating furnace beginning with the other end, and performing elongation.

摘要翻译： 本发明提供一种用于使直径较大的玻璃基材拉长的玻璃基材伸长方法，以制造直径较小的玻璃棒，该方法包括在将玻璃基材的一端延伸的玻璃基材 主体部分和玻璃锥形部分，其包括在主体部分的另一端处的不透明玻璃部分，在伸长之前，将悬挂的假人融合到透明玻璃锥形部分的端部，将悬挂的假人与 进给机构，将玻璃基材从另一端开始插入加热炉中，并进行伸长。

公开(公告)号：US20140096566A1

公开(公告)日：2014-04-10

申请号：US14042734

申请日：2013-10-01

申请人： Shin-Etsu Chemical Co., Ltd.

发明人： Tetsuya OTOSAKA

IPC分类号： C03B37/03

CPC分类号： C03B37/032 ,  C03B37/01257 ,  C03B37/0126

摘要： In order to provide a glass base material elongating apparatus that can safely elongate a glass base material in an extendable top chamber without damaging a flange, provided is a glass base material elongating apparatus comprising a heating furnace; an extendable top chamber formed of a multilayer cylinder disposed above the heating furnace; a glass base material hanging mechanism that hangs a glass base material into the heating furnace and the extendable top chamber; and a top chamber lifting mechanism. A flange is formed on a top portion of an outermost tube of the multilayer cylinder, and the top chamber lifting mechanism includes a cylinder support member that supports the flange from below and a cylinder lifting member that lifts up the cylinder support member.

摘要翻译： 为了提供一种玻璃基材延长装置，其可以在不会损坏凸缘的情况下将玻璃基材安全地拉伸在可延伸的顶部室中，提供了包括加热炉的玻璃基材延长装置; 由设置在所述加热炉上方的多层圆筒形成的可延伸顶部室; 玻璃基材悬挂机构，其将玻璃基材悬挂到加热炉和可延伸顶部室中; 和顶部室提升机构。 凸缘形成在多层筒体的最外面的管的顶部上，上部室提升机构包括从下方支撑凸缘的气缸支撑构件和提升气缸支撑构件的气缸提升构件。

公开(公告)号：US20080028797A1

公开(公告)日：2008-02-07

申请号：US11629227

申请日：2005-06-08

申请人： Ralph Sattmann

发明人： Ralph Sattmann

IPC分类号： C03B37/022

CPC分类号： C03B37/02736 ,  C03B37/0126 ,  C03B2205/30 ,  Y02P40/57

摘要： In a conventional method for the production of an optical component made from quartz glass, a coaxial arrangement with a core rod, surrounded by a quartz glass envelope tube comprising an evacuable inner drilling, is introduced in the vertical direction into a heating zone, softened therein by sections and, with formation of a drawing bulb, elongated to give the quartz glass component. According to the invention, a simple and cheap method based on the above, permitting the production of high-grade optical components by elongation of a coaxial arrangement of core rod and an enveloping tube with great economy, may be achieved, whereby a core rod is used, comprising at least two separate core rods arranged one above the other in the inner drilling and the weight of an upper core rod section is taken by a mounting or support region of the enveloping tube, provided above the drawing bulb.

摘要翻译： 在制造由石英玻璃制成的光学部件的常规方法中，将包括可抽真空的内钻的石英玻璃封套管包围的芯棒的同轴布置在垂直方向上引入加热区，在其中软化 通过切片形成一个拉丝灯泡，拉长以得到石英玻璃部件。 根据本发明，可以实现基于上述的简单且便宜的方法，允许通过延长具有经济性的芯棒和包络管的同轴布置来生产高级光学部件，由此芯棒 使用的，包括在内部钻孔中一个在另一个上彼此排列的至少两个分离的芯棒，并且上芯棒部分的重量由设置在牵伸灯泡上方的包封管的安装或支撑区域取走。

公开(公告)号：US20060207293A1

公开(公告)日：2006-09-21

申请号：US10565099

申请日：2004-07-18

申请人： Rene Sowa ,  Ralph Sattmann ,  Jan Vydra

发明人： Rene Sowa ,  Ralph Sattmann ,  Jan Vydra

IPC分类号： C03B37/07 ,  C03B37/028

CPC分类号： C03B37/01211 ,  C03B37/01245 ,  C03B37/01251 ,  C03B37/0126 ,  C03B37/02736 ,  C03B37/02754 ,  C03B2205/14

摘要： The production of an optical component from quartz glass by elongation of a coaxial arrangement of a core rod and a hollow cylinder is known. The arrangement is thus introduced into a heating zone, such that the lower end begins to partly soften and the component drawn from the softened part. According to the invention, a pseudo-continuous method for the formation of the restriction in the inner passage of the hollow cylinder on which the core rod is supported, is disclosed, whereby an upper hollow cylinder is fused end on with a lower hollow cylinder to form an axial composite cylinder, a core rod is introduced into the lower hollow cylinder and the axial cylinder composite partly softened and elongated to form the optical component. A drawing bulb extending to the upper hollow cylinder forms, within which the inner passage at least partly collapses with formation of the restriction and the upper cylinder is then separated off from the drawn optical component at a separating plane and then elongated together with a core rod to form an optical component.

摘要翻译： 已知通过芯棒和中空圆柱体的同轴布置的延长从石英玻璃生产光学部件。 因此，该布置被引入加热区，使得下端开始部分软化，并且从软化部分拉出的部件。 根据本发明，公开了一种用于在其上支撑有芯棒的中空圆柱体的内部通道中形成限制的伪连续方法，其中上空心圆筒以下空心圆筒熔化， 形成轴向复合圆筒，将芯棒引入下空心圆筒中，轴向圆筒复合材料部分软化和拉长以形成光学部件。 延伸到上部中空圆筒的拉丝灯泡形成，其中内部通道至少部分地与形成限制部分地折叠，并且上部圆柱体在分离平面处从拉出的光学部件分离出来，然后与芯棒一起拉长 以形成光学部件。

公开(公告)号：US20060174659A1

公开(公告)日：2006-08-10

申请号：US10565134

申请日：2004-07-18

申请人： Oliver Ganz ,  Rene Sowa ,  Peter Bauer ,  Norbert Cibis ,  Ralph Sattmann ,  Jan Vydra ,  Clemens Schmitt

发明人： Oliver Ganz ,  Rene Sowa ,  Peter Bauer ,  Norbert Cibis ,  Ralph Sattmann ,  Jan Vydra ,  Clemens Schmitt

IPC分类号： C03B37/027

CPC分类号： C03B37/01211 ,  C03B37/01245 ,  C03B37/01251 ,  C03B37/0126 ,  C03B37/02736 ,  C03B37/02754 ,  C03B2205/14

摘要： The production of an optical component from quartz glass, by elongation of a coaxial arrangement of a core rod and a hollow cylinder of a given length, is known. The arrangement is thus introduced into a heating zone with a vertical orientation, such that the lower end begins to partly soften and the component is drawn downwards from the softened part. The hollow cylinder has an inner passage, provided with a restriction in the region of the lower end thereof, on which the core rod is supported. Several methods are disclosed for formation of the restriction in which the inner passage (55) is mechanically machined to a final dimension and, in one version of the method, the restriction in the inner passage (55) is generated by means of softening the lower end face of the hollow cylinder, swaged against a tool and thus folded inwards with formation of a peripheral bead ring.

摘要翻译： 已知通过芯棒的同轴布置和给定长度的中空圆柱体从石英玻璃生产光学部件。 因此，该布置被引入具有垂直取向的加热区域，使得下端开始部分软化，并且部件从软化部分向下拉。 中空圆筒具有内部通道，在其下端的区域中设置有限制，其上支撑有芯棒。 公开了几种用于形成限制的方法，其中内部通道（55）被机械加工到最终尺寸，并且在该方法的一种形式中，内部通道（55）中的限制是通过软化下部 中空圆筒的端面，相对于工具进行锻压，从而向内折叠，形成周边的胎圈环。