FI824077A0 - FREQUENCY REQUIREMENT FOR FRAMSTAELLNING AV EN OPTICAL GLASFIBER WITH LAOG OH -JONHALT - Google Patents

FREQUENCY REQUIREMENT FOR FRAMSTAELLNING AV EN OPTICAL GLASFIBER WITH LAOG OH -JONHALT

Info

Publication number
FI824077A0
FI824077A0 FI824077A FI824077A FI824077A0 FI 824077 A0 FI824077 A0 FI 824077A0 FI 824077 A FI824077 A FI 824077A FI 824077 A FI824077 A FI 824077A FI 824077 A0 FI824077 A0 FI 824077A0
Authority
FI
Finland
Prior art keywords
jonhalt
glasfiber
laog
framstaellning
optical
Prior art date
Application number
FI824077A
Other languages
Finnish (fi)
Other versions
FI824077L (en
Inventor
Joachim Guttmann
Hans-Peter Huber
Original Assignee
Licentia Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Licentia Gmbh filed Critical Licentia Gmbh
Publication of FI824077A0 publication Critical patent/FI824077A0/en
Publication of FI824077L publication Critical patent/FI824077L/en

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
    • C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
    • C03B37/01869—Collapsing
    • 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
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/16—Drawing solid optical fibre directly from a hollow preform the drawn fibre consisting of circularly symmetric core and clad
FI824077A 1981-11-28 1982-11-26 FREQUENCY REQUIREMENT FOR FRAMSTAELLNING AV EN OPTICAL GLASFIBER WITH LAOG OH -JONHALT FI824077L (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3147244 1981-11-28
DE19823203349 DE3203349A1 (en) 1981-11-28 1982-02-02 METHOD AND DEVICE FOR PRODUCING AN OPTICAL GLASS FIBER WITH A LOW OH ION CONTENT

Publications (2)

Publication Number Publication Date
FI824077A0 true FI824077A0 (en) 1982-11-26
FI824077L FI824077L (en) 1983-05-29

Family

ID=25797636

Family Applications (1)

Application Number Title Priority Date Filing Date
FI824077A FI824077L (en) 1981-11-28 1982-11-26 FREQUENCY REQUIREMENT FOR FRAMSTAELLNING AV EN OPTICAL GLASFIBER WITH LAOG OH -JONHALT

Country Status (3)

Country Link
EP (1) EP0082305A1 (en)
DE (1) DE3203349A1 (en)
FI (1) FI824077L (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629485A (en) * 1983-09-26 1986-12-16 Corning Glass Works Method of making fluorine doped optical preform and fiber and resultant articles
AU569757B2 (en) * 1983-10-19 1988-02-18 Nippon Telegraph & Telephone Corporation Optical fibre preform manufacture
DE3434674A1 (en) * 1984-09-21 1986-04-03 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt METHOD FOR PRODUCING A AEROSOL FLOW
JPS61117126A (en) * 1984-11-13 1986-06-04 Sumitomo Electric Ind Ltd Preparation of parent material for optical fiber
JPS62176936A (en) * 1986-01-30 1987-08-03 Sumitomo Electric Ind Ltd Method and device for producing optical fiber preform
DE3923686A1 (en) * 1989-07-18 1991-01-24 Rheydt Kabelwerk Ag Pretreating optical waveguide substrate tube - with diffusion barrier-forming gas prior to coating
KR20020012547A (en) 1999-04-26 2002-02-16 알프레드 엘. 미첼슨 Low water peak optical waveguide fiber and method of manufacturing same

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1427327A (en) * 1972-06-08 1976-03-10 Standard Telephones Cables Ltd Glass optical fibres
US4125388A (en) * 1976-12-20 1978-11-14 Corning Glass Works Method of making optical waveguides
CA1106710A (en) * 1977-06-22 1981-08-11 Michael G. Blankenship Method of making optical devices
DE3037491C2 (en) * 1979-10-04 1983-10-27 Nippon Telegraph & Telephone Public Corp., Tokyo Method of manufacturing a glass preform for optical fibers
US4304583A (en) * 1980-06-02 1981-12-08 Corning Glass Works Process for drying optical waveguide preforms
US4304581A (en) * 1980-08-07 1981-12-08 Western Electric Co., Inc. Lightguide preform fabrication

Also Published As

Publication number Publication date
EP0082305A1 (en) 1983-06-29
DE3203349A1 (en) 1983-06-09
FI824077L (en) 1983-05-29

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Legal Events

Date Code Title Description
FA Application withdrawn

Owner name: LICENTIA PATENT- VERWALTUNGS-G.M.B.H.