WO2006083354A3 - Low-water optical fiber preform and process for making it - Google Patents

Low-water optical fiber preform and process for making it Download PDF

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Publication number
WO2006083354A3
WO2006083354A3 PCT/US2005/042079 US2005042079W WO2006083354A3 WO 2006083354 A3 WO2006083354 A3 WO 2006083354A3 US 2005042079 W US2005042079 W US 2005042079W WO 2006083354 A3 WO2006083354 A3 WO 2006083354A3
Authority
WO
WIPO (PCT)
Prior art keywords
dopant
core
optical fiber
preform
vad
Prior art date
Application number
PCT/US2005/042079
Other languages
French (fr)
Other versions
WO2006083354A2 (en
Inventor
Arnab Sarkar
Bedros Orchanian
Kim Nhu Vo
Original Assignee
Nextrom Holding Sa
Arnab Sarkar
Bedros Orchanian
Kim Nhu Vo
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 Nextrom Holding Sa, Arnab Sarkar, Bedros Orchanian, Kim Nhu Vo filed Critical Nextrom Holding Sa
Publication of WO2006083354A2 publication Critical patent/WO2006083354A2/en
Publication of WO2006083354A3 publication Critical patent/WO2006083354A3/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]
    • C03B37/0144—Means for after-treatment or catching of worked reactant gases
    • 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]
    • C03B37/01406—Deposition reactors therefor
    • 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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/50—Multiple burner arrangements

Abstract

An improved flame-hydrolysis process is disclosed, for manufacturing large optical fiber core preforms, useful in the production of low water, single-mode optical fibers. In one feature of the invention, the preform is manufactured using a vapor axial deposition (VAD) apparatus to form an inner core and an outside vapor deposition (OVD) apparatus to form an outer core, wherein the VAD and OVD apparatus both are located within the same housing. In another feature of the invention, the concentration of a germanium dopant in the inner and outer cores is substantially uniform, but increases immediately adjacent the outer surface of the outer core. Further, the concentration of a fluorine dopant in a surrounding cladding layer decreases from a maximum value immediately adjacent to the outer core. These variations in dopant concentrations are selected to offset the effect on refractive index caused by diffusion of the germanium dopant while the preform is subsequently being processes.
PCT/US2005/042079 2004-11-18 2005-11-17 Low-water optical fiber preform and process for making it WO2006083354A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US62938104P 2004-11-18 2004-11-18
US60/629,381 2004-11-18

Publications (2)

Publication Number Publication Date
WO2006083354A2 WO2006083354A2 (en) 2006-08-10
WO2006083354A3 true WO2006083354A3 (en) 2006-11-30

Family

ID=36777673

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/042079 WO2006083354A2 (en) 2004-11-18 2005-11-17 Low-water optical fiber preform and process for making it

Country Status (1)

Country Link
WO (1) WO2006083354A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109553295B (en) * 2018-12-25 2021-09-10 江苏通鼎光棒有限公司 Large-size low-loss optical fiber preform and manufacturing method thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113031147B (en) * 2021-03-15 2022-11-25 南京邮电大学 Homogenization optical fiber with multilayer square structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01230445A (en) * 1988-03-10 1989-09-13 Furukawa Electric Co Ltd:The Light transmitter
JPH06219765A (en) * 1993-01-26 1994-08-09 Fujikura Ltd Production of preform for optical fiber
JPH0710586A (en) * 1993-06-25 1995-01-13 Fujikura Ltd Production of soot preform for optical fiber
US5558693A (en) * 1986-02-03 1996-09-24 Spectran Communications Fiber Technologies, Inc. Methods of making optical waveguides
US5683486A (en) * 1993-12-28 1997-11-04 Shin-Etsu Chemical Co., Ltd. Method of forming a fiber preform to minimize shifts of the zero-dispersion wavelength
JP2002326834A (en) * 2001-04-27 2002-11-12 Sumitomo Electric Ind Ltd Method for producing optical fiber core base material and optical fiber base material

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5558693A (en) * 1986-02-03 1996-09-24 Spectran Communications Fiber Technologies, Inc. Methods of making optical waveguides
JPH01230445A (en) * 1988-03-10 1989-09-13 Furukawa Electric Co Ltd:The Light transmitter
JPH06219765A (en) * 1993-01-26 1994-08-09 Fujikura Ltd Production of preform for optical fiber
JPH0710586A (en) * 1993-06-25 1995-01-13 Fujikura Ltd Production of soot preform for optical fiber
US5683486A (en) * 1993-12-28 1997-11-04 Shin-Etsu Chemical Co., Ltd. Method of forming a fiber preform to minimize shifts of the zero-dispersion wavelength
JP2002326834A (en) * 2001-04-27 2002-11-12 Sumitomo Electric Ind Ltd Method for producing optical fiber core base material and optical fiber base material

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 556 (C - 664) 11 December 1989 (1989-12-11) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 588 (C - 1271) 10 November 1994 (1994-11-10) *
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 04 31 May 1995 (1995-05-31) *
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 03 5 May 2003 (2003-05-05) *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109553295B (en) * 2018-12-25 2021-09-10 江苏通鼎光棒有限公司 Large-size low-loss optical fiber preform and manufacturing method thereof

Also Published As

Publication number Publication date
WO2006083354A2 (en) 2006-08-10

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