IT8167857A0 - Procedimento e dispositivo per la deidrogenazione in linea di preforme per fibre ottiche - Google Patents
Procedimento e dispositivo per la deidrogenazione in linea di preforme per fibre otticheInfo
- Publication number
- IT8167857A0 IT8167857A0 IT8167857A IT6785781A IT8167857A0 IT 8167857 A0 IT8167857 A0 IT 8167857A0 IT 8167857 A IT8167857 A IT 8167857A IT 6785781 A IT6785781 A IT 6785781A IT 8167857 A0 IT8167857 A0 IT 8167857A0
- Authority
- IT
- Italy
- Prior art keywords
- preforms
- procedure
- optic fibers
- dehydrogenation
- line
- Prior art date
Links
- 238000006356 dehydrogenation reaction Methods 0.000 title 1
- 239000000835 fiber Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
-
- 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]
- C03B37/01413—Reactant delivery systems
-
- 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
- C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/045—Silica-containing oxide glass compositions
- C03C13/047—Silica-containing oxide glass compositions containing deuterium
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44382—Means specially adapted for strengthening or protecting the cables the means comprising hydrogen absorbing materials
-
- 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
- C03B2201/22—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with deuterium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/80—Feeding the burner or the burner-heated deposition site
- C03B2207/81—Constructional details of the feed line, e.g. heating, insulation, material, manifolds, filters
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/20—Doped silica-based glasses containing non-metals other than boron or halide
- C03C2201/21—Doped silica-based glasses containing non-metals other than boron or halide containing molecular hydrogen
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2201/00—Glass compositions
- C03C2201/06—Doped silica-based glasses
- C03C2201/20—Doped silica-based glasses containing non-metals other than boron or halide
- C03C2201/22—Doped silica-based glasses containing non-metals other than boron or halide containing deuterium
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2203/00—Production processes
- C03C2203/50—After-treatment
- C03C2203/52—Heat-treatment
- C03C2203/54—Heat-treatment in a dopant containing atmosphere
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S65/00—Glass manufacturing
- Y10S65/90—Drying, dehydration, minimizing oh groups
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Surface Treatment Of Glass Fibres Or Filaments (AREA)
- Chemical Vapour Deposition (AREA)
- Reinforced Plastic Materials (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Glass Melting And Manufacturing (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Glass Compositions (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Artificial Filaments (AREA)
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67857/81A IT1145157B (it) | 1981-06-22 | 1981-06-22 | Procedimento e dispositivo per la deidrogenazione in linea di preforme per fibre ottiche |
AU84701/82A AU533741B2 (en) | 1981-06-22 | 1982-06-09 | On-line dehydrogenation or fibre preforms |
DK257682A DK257682A (da) | 1981-06-22 | 1982-06-09 | Fremgangsmaade og apparat til dehydrogenering af fibertraekkende praeforme |
JP57098599A JPS57209842A (en) | 1981-06-22 | 1982-06-10 | Process and apparatus for online dehydrogenation of fiber pull-out preform |
NO821973A NO153803C (no) | 1981-06-22 | 1982-06-14 | Fremgangsmaate og innretning for fremstilling av optiske fiberemner. |
ES513112A ES8305134A1 (es) | 1981-06-22 | 1982-06-15 | Procedimiento y aparato para la deshidrogenacion en linea de preformas para fibras opticas. |
BR8203594A BR8203594A (pt) | 1981-06-22 | 1982-06-18 | Processo para desidrogenecao em linha de preformas por estiramento de fibras e dispositivo para controlar fluxo de deuterio |
CA000405570A CA1198326A (en) | 1981-06-22 | 1982-06-21 | Process and device for online dehydrogenation of fibre-drawing preforms |
EP82105428A EP0068388B1 (en) | 1981-06-22 | 1982-06-21 | Process and device for online dehydrogenation of fibre-drawing preforms |
DE8282105428T DE3262779D1 (en) | 1981-06-22 | 1982-06-21 | Process and device for online dehydrogenation of fibre-drawing preforms |
DE198282105428T DE68388T1 (de) | 1981-06-22 | 1982-06-21 | Verfahren und vorrichtung zur gleichzeitigen wasserstoffesentfernung aus preformen zum ziehen von fasern. |
AT82105428T ATE12382T1 (de) | 1981-06-22 | 1982-06-21 | Verfahren und vorrichtung zur im verfahrensfluss erfolgenden dehydrogenisierung von vorformen zum ziehen von fasern. |
US06/390,801 US4445918A (en) | 1981-06-22 | 1982-06-21 | Process and apparatus for on-line dehydrogenation of fiber-drawing preforms |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT67857/81A IT1145157B (it) | 1981-06-22 | 1981-06-22 | Procedimento e dispositivo per la deidrogenazione in linea di preforme per fibre ottiche |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8167857A0 true IT8167857A0 (it) | 1981-06-22 |
IT1145157B IT1145157B (it) | 1986-11-05 |
Family
ID=11305832
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT67857/81A IT1145157B (it) | 1981-06-22 | 1981-06-22 | Procedimento e dispositivo per la deidrogenazione in linea di preforme per fibre ottiche |
Country Status (12)
Country | Link |
---|---|
US (1) | US4445918A (it) |
EP (1) | EP0068388B1 (it) |
JP (1) | JPS57209842A (it) |
AT (1) | ATE12382T1 (it) |
AU (1) | AU533741B2 (it) |
BR (1) | BR8203594A (it) |
CA (1) | CA1198326A (it) |
DE (2) | DE68388T1 (it) |
DK (1) | DK257682A (it) |
ES (1) | ES8305134A1 (it) |
IT (1) | IT1145157B (it) |
NO (1) | NO153803C (it) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3338714A1 (de) * | 1983-10-25 | 1985-05-02 | Wacker-Chemitronic Gesellschaft für Elektronik-Grundstoffe mbH, 8263 Burghausen | Verfahren zur verringerung des hydroxylanteils in lichtwellenleitern |
US4685945A (en) * | 1984-02-06 | 1987-08-11 | Friedemann Freund | Method of processing high purity low-OH vitreous silica fibers |
US4917084A (en) * | 1985-07-31 | 1990-04-17 | C. R. Bard, Inc. | Infrared laser catheter system |
EP0214712B1 (en) | 1985-07-31 | 1992-09-02 | C.R. Bard, Inc. | Infrared laser catheter apparatus |
US5522003A (en) * | 1993-03-02 | 1996-05-28 | Ward; Robert M. | Glass preform with deep radial gradient layer and method of manufacturing same |
EP0716047A3 (en) * | 1994-12-02 | 1996-10-09 | Fibercore Inc | Method and apparatus for making an optical fiber preform |
DE19716869A1 (de) | 1997-04-22 | 1998-10-29 | Deutsche Telekom Ag | Glas für Lichtwellenleiter oder dergleichen |
US6094940A (en) | 1997-10-09 | 2000-08-01 | Nikon Corporation | Manufacturing method of synthetic silica glass |
FR2777072B1 (fr) * | 1998-04-03 | 2000-05-19 | Pechiney Aluminium | Procede et dispositif de regulation des fours de cuisson a feu tournant |
DE19850736C2 (de) * | 1998-11-04 | 2003-04-17 | Heraeus Tenevo Ag | Kernglas für eine Vorform für eine optische Faser, unter Verwendung des Kernglases hergestellte Vorform, sowie Verfahren zur Herstellung des Kernglases einer Vorform für eine optische Faser |
US6430967B1 (en) * | 1999-10-26 | 2002-08-13 | Fitel Usa Corp. | Pressure monitoring system using disposable seals |
AU2001296902A1 (en) * | 2000-10-20 | 2002-05-06 | Corning Incorporated | Using deuterated source gases to fabricate low loss germanium-doped silicon oxy nitride (gestion-sion) |
US6776012B2 (en) * | 2001-06-26 | 2004-08-17 | Fitel Usa Corp. | Method of making an optical fiber using preform dehydration in an environment of chlorine-containing gas, fluorine-containing gases and carbon monoxide |
US20030084685A1 (en) * | 2001-11-02 | 2003-05-08 | Jds Uniphase Corporation | Method of making an optical fiber or preform having a reduced hydrogen content |
US6856739B2 (en) * | 2001-11-07 | 2005-02-15 | Jds Uniphase Corporation | Optical fiber for resisting hydrogen-induced loss |
US6799440B2 (en) * | 2002-02-22 | 2004-10-05 | General Electric Company | Optical fiber deposition tube fused in deuterium atmosphere for attenuation improvement |
US20040060327A1 (en) * | 2002-09-30 | 2004-04-01 | Berkey George E | Method for treating an optical fiber preform with deuterium |
EP1422202A1 (en) * | 2002-11-25 | 2004-05-26 | Alcatel | Method of fabricating an optical fiber |
NL1022140C2 (nl) * | 2002-12-11 | 2004-06-15 | Draka Fibre Technology Bv | Werkwijze voor de depositie van een of meer glaslagen met laag hydroxylgehalte op het inwendige van een substraatbuis. |
US7752870B1 (en) | 2003-10-16 | 2010-07-13 | Baker Hughes Incorporated | Hydrogen resistant optical fiber formation technique |
US20070175242A1 (en) * | 2004-02-27 | 2007-08-02 | Masaaki Hirano | Method and device for producing optical fiber matrix |
US7024089B2 (en) | 2004-07-26 | 2006-04-04 | Sbc Knowledge Ventures, L.P. | Fiber distribution frame arrangement having a centralized controller which universally controls and monitors access to fiber distribution frames |
GB2424962B (en) * | 2005-04-05 | 2007-10-17 | Sensor Highway Ltd | Aparatus and method for preventing unwanted exposure of a device to an undesirable substance |
US7635658B2 (en) * | 2005-11-07 | 2009-12-22 | Corning Inc | Deuteroxyl-doped silica glass, optical member and lithographic system comprising same and method of making same |
NL1036343C2 (nl) * | 2008-12-19 | 2010-06-22 | Draka Comteq Bv | Werkwijze en inrichting voor het vervaardigen van een optische voorvorm. |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1525536A (fr) * | 1966-06-02 | 1968-05-17 | Western Electric Co | Contrôle de la concentration d'impureté de contamination dans un courant de gaz porteur |
US3865647A (en) * | 1970-09-30 | 1975-02-11 | Siemens Ag | Method for precipitation of semiconductor material |
US3791714A (en) * | 1972-03-30 | 1974-02-12 | Corning Glass Works | Method of producing glass for optical waveguides |
US3826560A (en) * | 1972-03-30 | 1974-07-30 | Corning Glass Works | Method of forming a light focusing fiber waveguide |
CA1084534A (en) * | 1977-03-22 | 1980-08-26 | Daisuke Kato | Method of producing glass compositions for optical wave guides |
JPS5448256A (en) * | 1977-09-22 | 1979-04-16 | Nec Corp | Silica fiber for optical communication and production of the same |
CA1136417A (en) * | 1978-07-17 | 1982-11-30 | Rodney L. Leroy | Hydrogen injection into gas pipelines and other pressurized gas containers |
-
1981
- 1981-06-22 IT IT67857/81A patent/IT1145157B/it active
-
1982
- 1982-06-09 AU AU84701/82A patent/AU533741B2/en not_active Ceased
- 1982-06-09 DK DK257682A patent/DK257682A/da not_active Application Discontinuation
- 1982-06-10 JP JP57098599A patent/JPS57209842A/ja active Pending
- 1982-06-14 NO NO821973A patent/NO153803C/no unknown
- 1982-06-15 ES ES513112A patent/ES8305134A1/es not_active Expired
- 1982-06-18 BR BR8203594A patent/BR8203594A/pt unknown
- 1982-06-21 AT AT82105428T patent/ATE12382T1/de active
- 1982-06-21 EP EP82105428A patent/EP0068388B1/en not_active Expired
- 1982-06-21 CA CA000405570A patent/CA1198326A/en not_active Expired
- 1982-06-21 DE DE198282105428T patent/DE68388T1/de active Pending
- 1982-06-21 US US06/390,801 patent/US4445918A/en not_active Expired - Fee Related
- 1982-06-21 DE DE8282105428T patent/DE3262779D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DK257682A (da) | 1982-12-23 |
ES513112A0 (es) | 1983-03-16 |
IT1145157B (it) | 1986-11-05 |
CA1198326A (en) | 1985-12-24 |
AU533741B2 (en) | 1983-12-08 |
JPS57209842A (en) | 1982-12-23 |
AU8470182A (en) | 1983-02-24 |
DE3262779D1 (en) | 1985-05-02 |
DE68388T1 (de) | 1983-07-07 |
US4445918A (en) | 1984-05-01 |
EP0068388A1 (en) | 1983-01-05 |
NO821973L (no) | 1982-12-23 |
ES8305134A1 (es) | 1983-03-16 |
ATE12382T1 (de) | 1985-04-15 |
NO153803C (no) | 1986-05-28 |
NO153803B (no) | 1986-02-17 |
BR8203594A (pt) | 1983-06-14 |
EP0068388B1 (en) | 1985-03-27 |
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