FR2384722A1 - Perfectionnements apportes a la fabrication de preformes de fibres optiques - Google Patents
Perfectionnements apportes a la fabrication de preformes de fibres optiquesInfo
- Publication number
- FR2384722A1 FR2384722A1 FR7808446A FR7808446A FR2384722A1 FR 2384722 A1 FR2384722 A1 FR 2384722A1 FR 7808446 A FR7808446 A FR 7808446A FR 7808446 A FR7808446 A FR 7808446A FR 2384722 A1 FR2384722 A1 FR 2384722A1
- Authority
- FR
- France
- Prior art keywords
- tube
- optical fiber
- volatile oxide
- fiber preforms
- halide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01853—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/018—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
- C03B2201/28—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with phosphorus
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/22—Radial profile of refractive index, composition or softening point
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
L'invention concerne la fabrication de préformes en silice pour la réalisation de fibres optiques. La préforme est obtenue à partir d'un tube de silice 20 dont la paroi interne est recouverte d'une couche de matériau contenant un oxyde volatil, puis est rétreint par passages successifs dans une zone à température élevée. Durant cette opération, une légère surpression est maintenue dans le tube au moyen d'un mélange gazeux contenant de l'oxygène et un halogénure de l'élément contenant ledit oxyde volatil. Ce mélange circule à travers le tube 20, un réservoir 23 puis une longue tubulure 24. La concentration de l'halogénure ou oxyhalogénure en rapport avec l'oxygène est telle qu'elle compense au moins en partie la perte en oxyde volatil lors du rétreint L'invention trouve son application dans la fabrication de préformes de fibres optiques.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB12431/77A GB1562032A (en) | 1977-03-24 | 1977-03-24 | Optical fibre manufacture |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2384722A1 true FR2384722A1 (fr) | 1978-10-20 |
FR2384722B1 FR2384722B1 (fr) | 1984-08-31 |
Family
ID=10004477
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7808446A Granted FR2384722A1 (fr) | 1977-03-24 | 1978-03-23 | Perfectionnements apportes a la fabrication de preformes de fibres optiques |
Country Status (11)
Country | Link |
---|---|
US (1) | US4165224A (fr) |
JP (1) | JPS6055449B2 (fr) |
AU (1) | AU515635B2 (fr) |
BR (1) | BR7801784A (fr) |
CA (1) | CA1097503A (fr) |
CH (1) | CH627284A5 (fr) |
ES (1) | ES468096A1 (fr) |
FR (1) | FR2384722A1 (fr) |
GB (1) | GB1562032A (fr) |
IT (1) | IT1115594B (fr) |
NL (1) | NL188967C (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039991A2 (fr) * | 1980-05-01 | 1981-11-18 | Corning Glass Works | Préforme pour guide d'ondes optique et procédé pour sa fabrication |
FR2488412A1 (fr) * | 1980-08-07 | 1982-02-12 | Western Electric Co | Procede de fabrication d'une preforme de guide de lumiere |
EP0060085A1 (fr) * | 1981-03-06 | 1982-09-15 | Hitachi, Ltd. | Fibre optique pour transmission à infrarouge |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2907731A1 (de) * | 1979-02-28 | 1980-09-04 | Siemens Ag | Verfahren zur herstellung eines glasfaser-lichtwellenleiters |
US4278459A (en) * | 1980-03-03 | 1981-07-14 | Western Electric Company, Inc. | Method and apparatus for exhausting optical fiber preform tubes |
US4280829A (en) * | 1980-05-12 | 1981-07-28 | Corning Glass Works | Apparatus for controlling internal pressure of a bait tube |
DE3177089D1 (en) * | 1980-07-17 | 1989-09-28 | British Telecomm | Improvements in and relating to glass fibres for optical communication |
DE3206144A1 (de) * | 1982-02-20 | 1983-09-01 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur herstellung eines lichtwellenleiters |
IT1155119B (it) * | 1982-03-05 | 1987-01-21 | Cselt Centro Studi Lab Telecom | Procedimento e dispositivo per la produzione di preforme per fibre ottiche |
US4842626A (en) * | 1983-02-14 | 1989-06-27 | American Telephone And Telegraph Company, At&T Bell Laboatories | Process for making optical fibers |
JPS60141634A (ja) * | 1983-12-28 | 1985-07-26 | Shin Etsu Chem Co Ltd | 光フアイバ−用母材およびその製造方法 |
US4671809A (en) * | 1984-06-05 | 1987-06-09 | Nippon Steel Corporation | Gas separation module |
US4632684A (en) * | 1984-07-31 | 1986-12-30 | Itt Corporation | Method of and apparatus for making optical preforms from tubular bodies |
JPS61117126A (ja) * | 1984-11-13 | 1986-06-04 | Sumitomo Electric Ind Ltd | 光フアイバ用母材の製造方法 |
JPS62275035A (ja) * | 1985-05-07 | 1987-11-30 | Sumitomo Electric Ind Ltd | 光フアイバ用母材の製造方法 |
DE3733880A1 (de) * | 1987-10-07 | 1989-04-20 | Schott Glaswerke | Verfahren zur herstellung eines lichtwellenleiters |
FR2621909B1 (fr) * | 1987-10-16 | 1990-01-19 | Comp Generale Electricite | |
JPH052197Y2 (fr) * | 1987-12-23 | 1993-01-20 | ||
JPH0271759A (ja) * | 1988-09-06 | 1990-03-12 | Hideyuki Terajima | 注射器 |
US5203897A (en) * | 1989-11-13 | 1993-04-20 | Corning Incorporated | Method for making a preform doped with a metal oxide |
EP0443781A1 (fr) * | 1990-02-23 | 1991-08-28 | AT&T Corp. | Procédé de dopage de fibres optiques |
US5822488A (en) * | 1995-10-04 | 1998-10-13 | Sumitomo Electric Industries, Inc. | Single-mode optical fiber with plural core portions |
CA2295490A1 (fr) * | 1997-07-15 | 1999-01-28 | William A. Whedon | Abaissement de la sensibilite au h2 de fibres optiques |
US6292612B1 (en) * | 1999-06-07 | 2001-09-18 | Lucent Technologies Inc. | Multi-mode optical fiber having improved refractive index profile and devices comprising same |
US6705123B2 (en) | 2001-03-30 | 2004-03-16 | Corning Incorporated | Making a photosensitive fiber with collapse of a MCVD tube that is in a small positive pressure atmosphere |
KR100624247B1 (ko) * | 2004-07-02 | 2006-09-19 | 엘에스전선 주식회사 | 고속 근거리 전송망을 위한 다중모드 광섬유 |
NL2012868B1 (en) * | 2014-05-22 | 2016-03-15 | Draka Comteq Bv | A method for manufacturing an optical preform. |
CN114409244A (zh) * | 2022-02-25 | 2022-04-29 | 长飞光纤光缆股份有限公司 | 一种掺镱光纤、预制棒及其制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2275415A1 (fr) * | 1974-05-31 | 1976-01-16 | Nat Res Dev | Guide d'ondes optiques a ame et revetement d'indices differents |
NL7710280A (nl) * | 1976-09-20 | 1978-03-22 | Hitachi Ltd | Werkwijze voor de vervaardiging van optische vezels. |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2463097C2 (de) * | 1973-08-21 | 1984-05-24 | International Standard Electric Corp., New York, N.Y. | Verfahren zur Herstellung von Glasfaser-Lichtleitern |
JPS51146243A (en) * | 1975-06-11 | 1976-12-15 | Hitachi Ltd | Process for manufacturing optical fiber |
-
1977
- 1977-03-24 GB GB12431/77A patent/GB1562032A/en not_active Expired
-
1978
- 1978-03-14 NL NLAANVRAGE7802743,A patent/NL188967C/xx not_active IP Right Cessation
- 1978-03-16 IT IT7821277A patent/IT1115594B/it active
- 1978-03-17 US US05/888,050 patent/US4165224A/en not_active Expired - Lifetime
- 1978-03-21 ES ES468096A patent/ES468096A1/es not_active Expired
- 1978-03-22 BR BR7801784A patent/BR7801784A/pt unknown
- 1978-03-22 AU AU34407/78A patent/AU515635B2/en not_active Expired
- 1978-03-23 CH CH319478A patent/CH627284A5/de not_active IP Right Cessation
- 1978-03-23 FR FR7808446A patent/FR2384722A1/fr active Granted
- 1978-03-24 JP JP53033192A patent/JPS6055449B2/ja not_active Expired
- 1978-03-28 CA CA299,794A patent/CA1097503A/fr not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2275415A1 (fr) * | 1974-05-31 | 1976-01-16 | Nat Res Dev | Guide d'ondes optiques a ame et revetement d'indices differents |
NL7710280A (nl) * | 1976-09-20 | 1978-03-22 | Hitachi Ltd | Werkwijze voor de vervaardiging van optische vezels. |
FR2364865A1 (fr) * | 1976-09-20 | 1978-04-14 | Hitachi Ltd | Procede de fabrication d'une fibre optique |
Non-Patent Citations (1)
Title |
---|
EXBK/77 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0039991A2 (fr) * | 1980-05-01 | 1981-11-18 | Corning Glass Works | Préforme pour guide d'ondes optique et procédé pour sa fabrication |
EP0039991A3 (en) * | 1980-05-01 | 1981-12-30 | Corning Glass Works | Optical waveguide preform and process for the manufacture thereof |
FR2488412A1 (fr) * | 1980-08-07 | 1982-02-12 | Western Electric Co | Procede de fabrication d'une preforme de guide de lumiere |
EP0060085A1 (fr) * | 1981-03-06 | 1982-09-15 | Hitachi, Ltd. | Fibre optique pour transmission à infrarouge |
Also Published As
Publication number | Publication date |
---|---|
NL188967B (nl) | 1992-06-16 |
BR7801784A (pt) | 1979-04-03 |
US4165224A (en) | 1979-08-21 |
NL188967C (nl) | 1992-11-16 |
ES468096A1 (es) | 1979-01-01 |
NL7802743A (nl) | 1978-09-26 |
AU3440778A (en) | 1979-09-27 |
FR2384722B1 (fr) | 1984-08-31 |
GB1562032A (en) | 1980-03-05 |
AU515635B2 (en) | 1981-04-16 |
CH627284A5 (fr) | 1981-12-31 |
IT1115594B (it) | 1986-02-03 |
JPS541046A (en) | 1979-01-06 |
JPS6055449B2 (ja) | 1985-12-05 |
CA1097503A (fr) | 1981-03-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property | ||
CA | Change of address | ||
ST | Notification of lapse |