IT1133839B - PROCEDURE FOR THE MANUFACTURE OF PREFORMED FOR OPTICAL FIBERS - Google Patents

PROCEDURE FOR THE MANUFACTURE OF PREFORMED FOR OPTICAL FIBERS

Info

Publication number
IT1133839B
IT1133839B IT25227/80A IT2522780A IT1133839B IT 1133839 B IT1133839 B IT 1133839B IT 25227/80 A IT25227/80 A IT 25227/80A IT 2522780 A IT2522780 A IT 2522780A IT 1133839 B IT1133839 B IT 1133839B
Authority
IT
Italy
Prior art keywords
preformed
procedure
manufacture
optical fibers
fibers
Prior art date
Application number
IT25227/80A
Other languages
Italian (it)
Other versions
IT8025227A0 (en
Inventor
Suto Shoichi
Kawachi Masao
Edahiro Takao
Nakahara Motohiro
Hanawa Fumiaki
Tomaru Satoru
Original Assignee
Nippon Telegraph & Telephone
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
Priority claimed from JP12953079A external-priority patent/JPS6044258B2/en
Priority claimed from JP3380A external-priority patent/JPS5938171B2/en
Priority claimed from JP3480A external-priority patent/JPS5696740A/en
Priority claimed from JP9384180A external-priority patent/JPS6041627B2/en
Application filed by Nippon Telegraph & Telephone filed Critical Nippon Telegraph & Telephone
Publication of IT8025227A0 publication Critical patent/IT8025227A0/en
Application granted granted Critical
Publication of IT1133839B publication Critical patent/IT1133839B/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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—Reactant deposition burners
    • 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
    • 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
    • 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
    • C03B2203/24—Single mode [SM or monomode]
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/06—Concentric circular ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/10—Split ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/16—Non-circular ports, e.g. square or oval
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/18—Eccentric ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/42—Assembly details; Material or dimensions of burner; Manifolds or supports
    • 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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/60—Relationship between burner and deposit, e.g. position
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/60—Relationship between burner and deposit, e.g. position
    • C03B2207/64—Angle
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
IT25227/80A 1979-10-09 1980-10-09 PROCEDURE FOR THE MANUFACTURE OF PREFORMED FOR OPTICAL FIBERS IT1133839B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP12953079A JPS6044258B2 (en) 1979-10-09 1979-10-09 synthesis torch
JP3380A JPS5938171B2 (en) 1980-01-07 1980-01-07 Manufacturing method of optical fiber base material
JP3480A JPS5696740A (en) 1980-01-07 1980-01-07 Preparation of optical fiber matrix
JP9384180A JPS6041627B2 (en) 1980-07-11 1980-07-11 Manufacturing method of optical fiber base material

Publications (2)

Publication Number Publication Date
IT8025227A0 IT8025227A0 (en) 1980-10-09
IT1133839B true IT1133839B (en) 1986-07-24

Family

ID=27453081

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25227/80A IT1133839B (en) 1979-10-09 1980-10-09 PROCEDURE FOR THE MANUFACTURE OF PREFORMED FOR OPTICAL FIBERS

Country Status (5)

Country Link
DE (1) DE3036915C2 (en)
FR (1) FR2467180B1 (en)
GB (3) GB2059944B (en)
IT (1) IT1133839B (en)
NL (1) NL189814C (en)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100933A (en) * 1980-12-12 1982-06-23 Nippon Telegr & Teleph Corp <Ntt> Preparation of base material for optical fiber
JPS57100934A (en) * 1980-12-12 1982-06-23 Nippon Telegr & Teleph Corp <Ntt> Manufacturing of optical fiber preform
US4378985A (en) * 1981-06-04 1983-04-05 Corning Glass Works Method and apparatus for forming an optical waveguide fiber
NL8103648A (en) * 1981-08-03 1983-03-01 Philips Nv METHOD FOR MANUFACTURING FORMS FOR DRAWING OPTICAL FIBERS AND FORMS ACCORDING TO THIS METHOD AND FOR APPARATUS FOR MANUFACTURING OPTICAL FIBERS
US4389229A (en) * 1981-10-01 1983-06-21 Western Electric Co., Inc. Methods and apparatus for fabricating a lightguide preform
JPS6059178B2 (en) * 1982-03-12 1985-12-24 日本電信電話株式会社 Method for manufacturing base material for optical fiber
EP0178032B1 (en) * 1982-04-26 1988-08-24 AT&T Corp. Vapor-phase axial deposition system
DE3219544A1 (en) * 1982-05-25 1983-12-01 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Process for the production of an optical waveguide
US4568370A (en) * 1982-09-29 1986-02-04 Corning Glass Works Optical fiber preform and method
DE3240355C1 (en) * 1982-11-02 1983-11-17 Heraeus Quarzschmelze Gmbh, 6450 Hanau Process for the production of an elongated glass body with an inhomogeneous refractive index distribution
JPS59232934A (en) * 1983-06-17 1984-12-27 Sumitomo Electric Ind Ltd Production of base material for optical fiber
DE3474657D1 (en) * 1984-01-31 1988-11-24 Nippon Telegraph & Telephone Method of fabricating optical fiber preforms
CA1284921C (en) * 1984-02-27 1991-06-18 Hiroyuki Suda Method, apparatus and burner for fabricating an optical fiber preform
JPS6126532A (en) * 1984-07-13 1986-02-05 Sumitomo Electric Ind Ltd Method for manufacturing base material for optical fiber
JPS61197439A (en) * 1985-02-27 1986-09-01 Furukawa Electric Co Ltd:The Production of porous glass rod and devices therefor
US5110335A (en) * 1990-06-25 1992-05-05 At&T Bell Laboratories Method of glass soot deposition using ultrasonic nozzle
JP3118822B2 (en) * 1990-09-07 2000-12-18 住友電気工業株式会社 Method for manufacturing glass articles
JP3832008B2 (en) * 1997-02-28 2006-10-11 株式会社ニコン Quartz glass manufacturing equipment
USD416108S (en) 1998-04-24 1999-11-02 The Gillette Company Razor
USD415315S (en) 1998-04-24 1999-10-12 The Gillette Company Razor cartridge
DE10058558C2 (en) * 2000-11-24 2002-11-07 Heraeus Quarzglas Method and device for producing a quartz glass body
USD524986S1 (en) 2003-12-22 2006-07-11 The Gillette Company Razor cartridge
PL2853362T3 (en) 2013-09-25 2017-01-31 Bic Violex S.A. A shaving blade cartridge

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4135901A (en) * 1974-12-18 1979-01-23 Sumitomo Electric Industries, Ltd. Method of manufacturing glass for optical waveguide
FR2313327A1 (en) * 1975-06-06 1976-12-31 Quartz & Silice VERY HIGH PURITY GLASS PREPARATION PROCESS USED IN PARTICULAR FOR THE MANUFACTURE OF OPTICAL FIBERS
CH620181A5 (en) * 1975-08-16 1980-11-14 Heraeus Schott Quarzschmelze Process for the preparation of synthetic quartz glass, apparatus to carry out the process, and the use of the synthetic quartz glass
JPS52121341A (en) * 1976-04-06 1977-10-12 Nippon Telegr & Teleph Corp <Ntt> Production of optical fiber base materials and production apparatus fo r the same
JPS5927728B2 (en) * 1977-08-11 1984-07-07 日本電信電話株式会社 Manufacturing method of sooty glass rod
JPS54112218A (en) * 1978-02-20 1979-09-03 Nippon Telegr & Teleph Corp <Ntt> Production of optical fiber
JPS54116429A (en) * 1978-03-03 1979-09-10 Hitachi Ltd Production of material for optical fiber

Also Published As

Publication number Publication date
GB2128982B (en) 1984-10-31
GB8301030D0 (en) 1983-02-16
GB2059944A (en) 1981-04-29
GB8301031D0 (en) 1983-02-16
NL189814C (en) 1993-08-02
GB2128982A (en) 1984-05-10
FR2467180B1 (en) 1986-07-11
GB2059944B (en) 1983-11-30
NL8005546A (en) 1981-04-13
GB2128981A (en) 1984-05-10
IT8025227A0 (en) 1980-10-09
DE3036915C2 (en) 1987-01-22
DE3036915A1 (en) 1981-04-23
GB2128981B (en) 1984-10-10
FR2467180A1 (en) 1981-04-17

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970926