公开(公告)号：EP0711734A1

公开(公告)日：1996-05-15

申请号：EP95307801.1

申请日：1995-11-01

Applicant: AT&T Corp.

Inventor： Kortan, Ahmet Refik ,  Pafchek, Robert M.

IPC: C03B37/012

CPC classification number: G02B6/03638 ,  C03B37/01268 ,  C03B2201/82 ,  C03B2203/12 ,  C03B2203/20 ,  C03B2203/24 ,  C03B2203/26 ,  C03B2203/34 ,  C03C3/325 ,  C03C13/04 ,  C03C13/042 ,  G02B6/102

Abstract: A method and apparatus are provided for forming a glass preform which can be directly drawn into a single or multi-mode optical fiber. Single or multi-mode fibers drawn from the preforms described herein have high quality core-clad interfaces since the core (22) and cladding materials are not exposed to crystallization temperatures upon the addition of the core material (22) to cladding material.

Abstract translation: 提供了用于形成玻璃预制件可以直接吸入到单或多模光纤的方法和设备。 从在所述的预型件拉单或多模光纤具有高品质的芯 - 包层界面由于芯（22）和包层材料不被在加入所述芯材（22）的包层材料暴露于结晶温度。

公开(公告)号：EP0538345B1

公开(公告)日：1996-04-03

申请号：EP91912900.7

申请日：1991-07-09

Applicant: BRITISH TELECOMMUNICATIONS public limited company

Inventor： FRANCE, Paul, William Little Cottage Newbourne ,  CARTER, Steven, Fitzgerald 62 Sherbourne Avenue ,  WILLIAMS, John, Richard

IPC: C03B37/012 ,  C03B37/023 ,  C03C3/32

CPC classification number: C03B37/01268 ,  C03B5/06 ,  C03B19/02 ,  C03B2201/82 ,  Y10S65/16

Abstract: Halide glass articles, e.g. rods, tubes and preforms for making fluoride glass fibres, are prepared by melting and/or casting the articles under a low pressure, e.g. 0.01 to 500 mbars and, during the low pressure regime, a gas flow rate of between 0.01 to 100 litres/min (measured at NTP) is maintained. It has been found that subjecting the melts to a low pressure reduces the attenuation of the fibre which eventually results from the melts.

公开(公告)号：EP0517169B1

公开(公告)日：1994-11-17

申请号：EP92109309.2

申请日：1992-06-02

Applicant: PIRELLI CAVI S.p.A. ,  SIP SOCIETA ITALIANA PER l'ESERCIZIO DELLE TELECOMUNICAZIONI P.A. ,  SIRTI S.p.A.

Inventor： Braglia, Marco ,  Cocito, Giuseppe

IPC: C01B9/08 ,  C03C1/02 ,  C03C3/32

CPC classification number: C03B37/023 ,  C01B9/08 ,  C03B5/021 ,  C03B5/025 ,  C03B5/225 ,  C03B2201/82 ,  C03C1/00 ,  C03C1/022

公开(公告)号：EP0579517A1

公开(公告)日：1994-01-19

申请号：EP93401200.6

申请日：1993-05-11

Applicant: ALCATEL N.V.

Inventor： Dumas, Jean-Pierre ,  Belouet, Christian

IPC: C03B37/018

CPC classification number: C03B37/01807 ,  C03B37/018 ,  C03B37/01815 ,  C03B2201/82 ,  Y10S65/16

Abstract: Procédé d'élaboration d'une préforme pour fibre optique selon lequel on dépose une pluralité de couches en verre (14) fluoré à l'intérieur d'un tube support (10); lesdites couches (14) sont déposées par ablation laser sous atmosphère contrôlée à partir d'une cible (12) ayant la composition dudit verre, animée d'un mouvement de va-et-vient parallèlement à l'axe dudit tube (10), la température de l'enceinte (1) où est effectuée ladite ablation étant inférieure ou égale à la température de transition vitreuse Tg dudit verre.

公开(公告)号：EP0326401B1

公开(公告)日：1993-05-05

申请号：EP89300797.1

申请日：1989-01-27

Applicant: KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA

Inventor： Mimura, Yoshinori ,  Noda, Yukio ,  Norimatsu, Naoki ,  Tokiwa, Hideharu ,  Shinbori, Osamu

IPC: C03B37/012 ,  C03B19/02

CPC classification number: C03B5/225 ,  C03B5/021 ,  C03B37/01268 ,  C03B2201/82

公开(公告)号：EP0517169A2

公开(公告)日：1992-12-09

申请号：EP92109309.2

申请日：1992-06-02

Applicant: PIRELLI CAVI S.p.A. ,  SIP SOCIETA ITALIANA PER l'ESERCIZIO DELLE TELECOMUNICAZIONI P.A. ,  SIRTI S.p.A.

Inventor： Braglia, Marco ,  Cocito, Giuseppe

IPC: C01B9/08 ,  C03C1/02 ,  C03C3/32

CPC classification number: C03B37/023 ,  C01B9/08 ,  C03B5/021 ,  C03B5/025 ,  C03B5/225 ,  C03B2201/82 ,  C03C1/00 ,  C03C1/022

Abstract: In a method of fluoride glass fabrication wherein NF3 is used as fluorinating agent, there are introduced into the reaction ambient (1) activated nitrogen and activated argon in order to eliminate nitrogen oxides formed during the fluorination reaction, and a trap for the oxygen developed as a consequence of the reaction with activated nitrogen. An apparatus for carrying out the method is also provided.

Abstract translation: 在其中使用NF 3作为氟化剂的氟化物玻璃制造方法中，将环境活化的氮气引入反应环境中以除去在氟化反应期间形成的氮氧化物，并且由于与 活性氮。 还提供了一种用于执行该方法的装置。

公开(公告)号：EP0471152A1

公开(公告)日：1992-02-19

申请号：EP91107460.7

申请日：1991-05-08

Applicant: CORNING INCORPORATED

Inventor： Cornelius, Lauren Kay, Corning Incorporated ,  Tick, Paul Arthur, Corning Incorporated

IPC: C03B18/00 ,  C03B37/012 ,  C03B37/023 ,  C03B37/027 ,  C03B37/029 ,  C03B23/037 ,  C03B23/047 ,  C03B18/02 ,  C03B15/02 ,  C03B15/14

CPC classification number: C03B18/02 ,  C03B15/02 ,  C03B15/14 ,  C03B18/00 ,  C03B23/037 ,  C03B23/047 ,  C03B37/023 ,  C03B37/027 ,  C03B37/029 ,  C03B2201/82 ,  C03B2201/84 ,  C03B2201/86 ,  C03B2205/02 ,  C03B2205/64 ,  C03B2205/69

Abstract: 5n7 Disclosed is a method and apparatus for drawing an elongated glass article (32) such as a fiber optic device. The article (32) is drawn upwardly from a source (28) through the surface of a quantity of molten metal (21) having a vertical temperature gradient. The source can be an elongated solid glass preform (28) that is vertically positioned within the molten metal (21) such that the temperature of that portion of the molten metal adjacent the upper end region is sufficiently high to heat that region to drawing temperature. The upper end region (29) is pulled to form a tapered root, continued pulling resulting in the formation of an elongated article (32) from the small diameter root end. The relative position of the root is maintained with respect to the surface of the molten metal during the drawing operation. Alternatively, the glass can be drawn from an orifice located within the molten metal.
The apparatus includes container means (11,12) for supporting the molten metal (21), and external or internal means (22,23) for heating and/or cooling portions of the molten metal (21). The container (11,12) can also be provided with baffle means for dividing the container into a plurality of chambers.

Abstract translation: 公开了一种拉伸玻璃制品（32）的方法和装置，例如光纤装置。 物品（32）从源（28）向上抽取通过具有垂直温度梯度的一定数量的熔融金属（21）的表面。 源可以是垂直设置在熔融金属（21）内的细长的固体玻璃预制件（28），使得靠近上端区域的熔融金属部分的温度足够高以将该区域加热到拉伸温度。 上端区域（29）被拉动以形成锥形根部，继续拉动导致从小直径根端部形成细长制品（32）。 在拉拔操作期间，相对于熔融金属的表面保持根部的相对位置。 或者，玻璃可以从位于熔融金属内的孔口拉出。 该设备包括用于支撑熔融金属（21）的容器装置（11,12）和用于加热和/或冷却熔融金属（21）的部分的外部或内部装置（22,23）。 容器（11,12）还可以设置有用于将容器分成多个室的挡板装置。

公开(公告)号：EP0321620A1

公开(公告)日：1989-06-28

申请号：EP87311362.5

申请日：1987-12-23

Applicant: Corning Glass Works

Inventor： Power, Joseph Maxwell ,  Sarhangi, Ahmad

IPC: C03B37/018 ,  C03C13/04

CPC classification number: C03B37/01807 ,  C03B37/01846 ,  C03B2201/82 ,  C03C3/325 ,  C03C13/041 ,  C03C13/042 ,  Y10S65/16

Abstract: A vapor phase method for making a metal halide material useful for the manufacture of an infrared transmitting optical waveguide fiber or other optical device, and the use of the method for making such a device, wherein a halogenated beta-diketonate of a metal to be incorporated in the device is converted to the corresponding metal halide by controlled decomposition of the halogenated diketonate, are described.

Abstract translation: 用于制造用于制造红外线传输光波导纤维或其他光学器件的金属卤化物材料的气相方法，以及制造这种器件的方法的用途，其中待掺入的金属卤化β-二酮酸盐 在该装置中通过卤代二酮的可控分解将其转化成相应的金属卤化物。

公开(公告)号：EP0170380A1

公开(公告)日：1986-02-05

申请号：EP85304280.2

申请日：1985-06-14

Applicant: BRITISH TELECOMMUNICATIONS public limited company

Inventor： France, Paul William ,  Willaims, John Richard ,  Carter, Steven Fitzgerald

IPC: C03C3/32 ,  C03C13/04

CPC classification number: C03C3/325 ,  C03B5/08 ,  C03B5/225 ,  C03B2201/82 ,  C03C13/042 ,  Y10S65/16 ,  Y10S501/904

Abstract: A process for treating a halide, e.g. fluoride, glass composition, characterised by contacting a melt of the composition (3) with dry oxygen (6). Oxygen, simply on contact with a fluoride glass melt, converts transition metals, e.g. from Fe (II) to Fe (III), from one stable state to another and thereby reduces loss at transmission wavelengths in optical fibre, e.g. the loss at 2.6 µm attributable to Fe (II).

公开(公告)号：EP0082517A1

公开(公告)日：1983-06-29

申请号：EP82111815.5

申请日：1982-12-20

Applicant: CSELT Centro Studi e Laboratori Telecomunicazioni S.p.A.

Inventor： Modone, Eros ,  Roba, Giacomo

IPC: C03B37/02 ,  C03B37/025 ,  G02B6/16

CPC classification number: C03B37/027 ,  C03B37/023 ,  C03B37/02736 ,  C03B2201/30 ,  C03B2201/82 ,  C03B2201/84 ,  C03B2205/13

Abstract: The apparatus is composed of two coaxial crucibles (3, 4) the outer one (4) presenting a low-softening temperature, so that it might be drawn with the raw materials. Thus a fibre is obtained with an outer coating which protects it against atmospheric agents. According to this process raw materials are used allowing the fabrication of fibres which may be used to transmit optical radiations with wavelengths longer than 5 µm; with an attenuation minimum lower than 10- 3 dB/km.

Abstract translation: 该装置由两个同轴的坩埚（3,4）组成，外部的一个（4）呈现低的软化温度，从而可以用原料拉制。 因此，获得具有保护其抵抗大气剂的外部涂层的纤维。 根据该方法，可以使用原料制造可用于传输波长长于5μm的光辐射的光纤，其衰减最小值降至10 -3 dB / km。