WO2002049977A3 - Method of doping an optical fiber preform with fluorine - Google Patents

Method of doping an optical fiber preform with fluorine Download PDF

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Publication number
WO2002049977A3
WO2002049977A3 PCT/US2001/046274 US0146274W WO0249977A3 WO 2002049977 A3 WO2002049977 A3 WO 2002049977A3 US 0146274 W US0146274 W US 0146274W WO 0249977 A3 WO0249977 A3 WO 0249977A3
Authority
WO
WIPO (PCT)
Prior art keywords
preform
fluorine
soot
temperature
region
Prior art date
Application number
PCT/US2001/046274
Other languages
French (fr)
Other versions
WO2002049977A2 (en
WO2002049977A9 (en
Inventor
Steven B Dawes
Andrew P Schermerhorn
V Srikant
Pushkar Tandon
Original Assignee
Corning Inc
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 Corning Inc filed Critical Corning Inc
Priority to AU2002239497A priority Critical patent/AU2002239497A1/en
Publication of WO2002049977A2 publication Critical patent/WO2002049977A2/en
Publication of WO2002049977A3 publication Critical patent/WO2002049977A3/en
Publication of WO2002049977A9 publication Critical patent/WO2002049977A9/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
    • C03B37/01853—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]
    • C03B37/01413—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]
    • C03B37/01446—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
    • C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
    • 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
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/12—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with fluorine
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/30—For glass precursor of non-standard type, e.g. solid SiH3F

Abstract

The invention relates to the manufacturing of a preform having at least one fluorine doped region. One method of the invention for producing the fluorinated preform includes heat treating a porous soot preform, the preform substantially devoid of any sintered glass layer, to a temperature of greater than about 1200 °C. The method further includes exposing the preform to an atmosphere comprising a fluorine containing compound, wherein the time and the temperature of said exposing step is controlled so that F comprises > about 1 wherein F is defined as Rmax/(D/k)1/2, wherein Rmax is the outer radius of the preform, D is the diffusion coefficient of the fluorine containing compound into the preform, and k is the reaction rate constant of the reaction between the fluorine and the soot, thereby controlling the radial penetration of fluorine into the preform. A second method includes depositing fluorine doped silica soot on a starting member to form a soot preform having at least one fluorine doped soot region and heating the soot preform at a rate of more than about 10 °C/min to a temperature of more than about 1300 °C. A third method includes heating a preform having at least one region of fluorine doped soot at a rate of more than about 10 °C/min to a temperature of more than about 1400 °C.
PCT/US2001/046274 2000-12-20 2001-10-31 Method of doping an optical fiber preform with fluorine WO2002049977A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002239497A AU2002239497A1 (en) 2000-12-20 2001-10-31 Method of doping an optical fiber preform with fluorine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25734100P 2000-12-20 2000-12-20
US60/257,341 2000-12-20

Publications (3)

Publication Number Publication Date
WO2002049977A2 WO2002049977A2 (en) 2002-06-27
WO2002049977A3 true WO2002049977A3 (en) 2003-01-30
WO2002049977A9 WO2002049977A9 (en) 2003-04-17

Family

ID=22975905

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/046274 WO2002049977A2 (en) 2000-12-20 2001-10-31 Method of doping an optical fiber preform with fluorine

Country Status (2)

Country Link
AU (1) AU2002239497A1 (en)
WO (1) WO2002049977A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006008756A1 (en) 2006-02-24 2007-09-06 Ford Global Technologies, LLC, Dearborn knee airbag
US11554978B2 (en) 2013-11-27 2023-01-17 Corning Incorporated Method for reducing processing time for optical fiber preforms
WO2016100255A1 (en) 2014-12-16 2016-06-23 Corning Incorporated Method of making an optical fiber preform and handle for use in making of optical fiber preform
WO2017059928A1 (en) 2015-10-09 2017-04-13 Prysmian S.P.A. Method for manufacturing a glass core preform for optical fibres.
IT201800009920A1 (en) 2018-10-30 2020-04-30 Prysmian Spa Method for making a glass preform for optical fibers
CN111170440B (en) * 2020-01-14 2020-11-27 南京大学盐城环保技术与工程研究院 High-salinity wastewater advanced oxidation method, industrial waste salt recycling method and equipment

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081033A (en) * 1983-10-11 1985-05-09 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical fiber
JPS6355131A (en) * 1986-08-27 1988-03-09 Sumitomo Electric Ind Ltd Apparatus for producing fluorine-containing glass
JPH02164742A (en) * 1988-12-20 1990-06-25 Fujikura Ltd Production of optical fiber and its preform
JPH02217329A (en) * 1989-02-20 1990-08-30 Sumitomo Electric Ind Ltd Production of glass preform for optical glass fiber
US5217516A (en) * 1985-12-27 1993-06-08 Sumitomo Electric Industries, Ltd. Method of making optical glass article
US5306322A (en) * 1989-06-29 1994-04-26 Sumitomo Electric Industries, Ltd. Process for thermal treatment of glass fiber preform

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081033A (en) * 1983-10-11 1985-05-09 Nippon Telegr & Teleph Corp <Ntt> Manufacture of optical fiber
US5217516A (en) * 1985-12-27 1993-06-08 Sumitomo Electric Industries, Ltd. Method of making optical glass article
JPS6355131A (en) * 1986-08-27 1988-03-09 Sumitomo Electric Ind Ltd Apparatus for producing fluorine-containing glass
JPH02164742A (en) * 1988-12-20 1990-06-25 Fujikura Ltd Production of optical fiber and its preform
JPH02217329A (en) * 1989-02-20 1990-08-30 Sumitomo Electric Ind Ltd Production of glass preform for optical glass fiber
US5306322A (en) * 1989-06-29 1994-04-26 Sumitomo Electric Industries, Ltd. Process for thermal treatment of glass fiber preform

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 218 (C - 301) 5 September 1985 (1985-09-05) *
PATENT ABSTRACTS OF JAPAN vol. 012, no. 275 (C - 516) 29 July 1988 (1988-07-29) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 427 (C - 0758) 13 September 1990 (1990-09-13) *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 522 (C - 0778) 15 November 1990 (1990-11-15) *

Also Published As

Publication number Publication date
WO2002049977A2 (en) 2002-06-27
AU2002239497A1 (en) 2002-07-01
WO2002049977A9 (en) 2003-04-17

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