BR8404518A - Processo e aparelho para fabricacao de pre-moldes para fibras oticas - Google Patents

Processo e aparelho para fabricacao de pre-moldes para fibras oticas

Info

Publication number
BR8404518A
BR8404518A BR8404518A BR8404518A BR8404518A BR 8404518 A BR8404518 A BR 8404518A BR 8404518 A BR8404518 A BR 8404518A BR 8404518 A BR8404518 A BR 8404518A BR 8404518 A BR8404518 A BR 8404518A
Authority
BR
Brazil
Prior art keywords
premolds
appliance
manufacturing
optical fibers
temperature
Prior art date
Application number
BR8404518A
Other languages
English (en)
Inventor
Giacomo Roba
Original Assignee
Cselt Centro Studi Lab Telecom
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 Cselt Centro Studi Lab Telecom filed Critical Cselt Centro Studi Lab Telecom
Publication of BR8404518A publication Critical patent/BR8404518A/pt

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
    • C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
    • C03B37/01815—Reactant deposition burners or deposition heating means

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Glass Compositions (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Eyeglasses (AREA)
  • Optical Integrated Circuits (AREA)
BR8404518A 1983-09-15 1984-09-11 Processo e aparelho para fabricacao de pre-moldes para fibras oticas BR8404518A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT67954/83A IT1168839B (it) 1983-09-15 1983-09-15 Procedimento e apparecchiatura per la produzione di preforme per fibre ottiche ad elevata velocita di deposizione

Publications (1)

Publication Number Publication Date
BR8404518A true BR8404518A (pt) 1985-08-06

Family

ID=11306676

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8404518A BR8404518A (pt) 1983-09-15 1984-09-11 Processo e aparelho para fabricacao de pre-moldes para fibras oticas

Country Status (12)

Country Link
US (1) US4608070A (pt)
EP (1) EP0140113B1 (pt)
JP (1) JPS6090846A (pt)
AT (1) ATE27951T1 (pt)
AU (1) AU550914B2 (pt)
BR (1) BR8404518A (pt)
CA (1) CA1228773A (pt)
DE (2) DE3464360D1 (pt)
DK (1) DK428884A (pt)
ES (1) ES8606211A1 (pt)
IT (1) IT1168839B (pt)
NO (1) NO158573B (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3528275A1 (de) * 1985-08-07 1987-02-19 Philips Patentverwaltung Verfahren und vorrichtung zum innenbeschichten von rohren
US5028246A (en) * 1986-02-03 1991-07-02 Ensign-Bickford Optical Technologies, Inc. Methods of making optical waveguides
FR2619397B1 (fr) * 1987-08-12 1989-11-10 Commissariat Energie Atomique Procede pour recouvrir une surface de grande longueur d'une couche uniforme de particules
US5318611A (en) * 1992-03-13 1994-06-07 Ensign-Bickford Optical Technologies, Inc. Methods of making optical waveguides and waveguides made thereby
US5397372A (en) * 1993-11-30 1995-03-14 At&T Corp. MCVD method of making a low OH fiber preform with a hydrogen-free heat source
US6145345A (en) * 1998-06-05 2000-11-14 Lucent Technologies Inc. Modified chemical vapor deposition using independently controlled thermal sources
KR100277358B1 (ko) * 1998-06-25 2001-01-15 윤종용 화학기상증착방법에 의한 광섬유모재 제조장치 및 방법
US6122935A (en) * 1998-07-08 2000-09-26 Lucent Technologies Inc. High rate MCVD method of making an optical fiber preform
EP1010672A1 (en) * 1998-12-17 2000-06-21 PIRELLI CAVI E SISTEMI S.p.A. Method and apparatus for forming an optical fiber preform by combustionless hydrolysis
NL1012616C2 (nl) * 1999-07-16 2001-01-17 Plasma Optical Fibre Bv Werkwijze ter vervaardiging van een voorvorm, alsmede vezel verkregen uit een dergelijke voorvorm.
US7003984B2 (en) * 2001-04-30 2006-02-28 Verrillon, Inc. Hybrid manufacturing process for optical fibers
US20030084685A1 (en) * 2001-11-02 2003-05-08 Jds Uniphase Corporation Method of making an optical fiber or preform having a reduced hydrogen content
NL1022087C2 (nl) * 2002-12-05 2004-06-08 Draka Fibre Technology Bv Werkwijze ter vervaardiging van een optische vezel.
JP4022769B2 (ja) * 2003-11-20 2007-12-19 住友電気工業株式会社 ガラスパイプ加工方法
US7866189B2 (en) * 2003-12-08 2011-01-11 Fujikura Ltd. Dehydration-sintering furnace, a manufacturing method of an optical fiber preform utilizing the furnace and an optical fiber preform manufactured by the method
NL1037163C2 (nl) * 2009-07-30 2011-02-02 Draka Comteq Bv Werkwijze en inrichting voor het vervaardigen van een primaire voorvorm voor optische vezels.
NL1037164C2 (nl) 2009-07-30 2011-02-02 Draka Comteq Bv Werkwijze voor het vervaardigen van een primaire voorvorm voor optische vezels.
US20220098084A1 (en) * 2020-05-20 2022-03-31 Corning Incorporated Methods for increasing deposition in a flame hydrolysis deposition process

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1559768A (en) * 1977-06-07 1980-01-23 Int Standard Electric Corp Optical fibre preform manufacture
US4334903A (en) * 1977-08-29 1982-06-15 Bell Telephone Laboratories, Incorporated Optical fiber fabrication
GB2039880B (en) * 1978-08-18 1983-04-20 Western Electric Co Fabrication of optical fibres utilizing thermophoretic deposition of glass precursor particulates
US4417911A (en) * 1981-02-27 1983-11-29 Associated Electrical Industries Limited Manufacture of optical fibre preforms

Also Published As

Publication number Publication date
NO843655L (no) 1985-03-18
NO158573C (no) 1988-10-05
DE3464360D1 (en) 1987-07-30
US4608070A (en) 1986-08-26
ES8606211A1 (es) 1986-04-01
DK428884A (da) 1985-03-16
CA1228773A (en) 1987-11-03
JPS6090846A (ja) 1985-05-22
EP0140113B1 (en) 1987-06-24
EP0140113A1 (en) 1985-05-08
ES535816A0 (es) 1986-04-01
NO158573B (no) 1988-10-05
IT1168839B (it) 1987-05-20
AU3298084A (en) 1985-03-21
AU550914B2 (en) 1986-04-10
IT8367954A0 (it) 1983-09-15
ATE27951T1 (de) 1987-07-15
DK428884D0 (da) 1984-09-07
DE140113T1 (de) 1985-10-10

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