JPS5262031A - Manufacture of optical fiber preform - Google Patents

Manufacture of optical fiber preform

Info

Publication number
JPS5262031A
JPS5262031A JP13718675A JP13718675A JPS5262031A JP S5262031 A JPS5262031 A JP S5262031A JP 13718675 A JP13718675 A JP 13718675A JP 13718675 A JP13718675 A JP 13718675A JP S5262031 A JPS5262031 A JP S5262031A
Authority
JP
Japan
Prior art keywords
manufacture
optical fiber
fiber preform
preforming
circularity
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP13718675A
Other languages
Japanese (ja)
Other versions
JPS5839780B2 (en
Inventor
Katsuyuki Imoto
Akizo Toda
Masao Sumi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP13718675A priority Critical patent/JPS5839780B2/en
Publication of JPS5262031A publication Critical patent/JPS5262031A/en
Publication of JPS5839780B2 publication Critical patent/JPS5839780B2/en
Expired legal-status Critical Current

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

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)
  • Surface Treatment Of Glass (AREA)

Abstract

PURPOSE:To enable improvement of circularity of core diameter and outer diameter and adjustment of refractive index by introducing a cooling gas of a specified pressure into a glass tube having a glass film deposited on the inside wall, and preforming by heating the circumference simultaneously applying a centrifugal force.
JP13718675A 1975-11-17 1975-11-17 Hikari Life Preform No Seizouhouhou Expired JPS5839780B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13718675A JPS5839780B2 (en) 1975-11-17 1975-11-17 Hikari Life Preform No Seizouhouhou

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13718675A JPS5839780B2 (en) 1975-11-17 1975-11-17 Hikari Life Preform No Seizouhouhou

Publications (2)

Publication Number Publication Date
JPS5262031A true JPS5262031A (en) 1977-05-23
JPS5839780B2 JPS5839780B2 (en) 1983-09-01

Family

ID=15192801

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13718675A Expired JPS5839780B2 (en) 1975-11-17 1975-11-17 Hikari Life Preform No Seizouhouhou

Country Status (1)

Country Link
JP (1) JPS5839780B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756336A (en) * 1980-08-07 1982-04-03 Western Electric Co Manufacture of light transmitting preform
EP1043280A1 (en) * 1999-04-08 2000-10-11 Lucent Technologies Inc. Process for collapsing an optical fibre preform tube

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5756336A (en) * 1980-08-07 1982-04-03 Western Electric Co Manufacture of light transmitting preform
EP1043280A1 (en) * 1999-04-08 2000-10-11 Lucent Technologies Inc. Process for collapsing an optical fibre preform tube

Also Published As

Publication number Publication date
JPS5839780B2 (en) 1983-09-01

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