JPS5614440A - Manufacture of optical fiber base material - Google Patents

Manufacture of optical fiber base material

Info

Publication number
JPS5614440A
JPS5614440A JP9112879A JP9112879A JPS5614440A JP S5614440 A JPS5614440 A JP S5614440A JP 9112879 A JP9112879 A JP 9112879A JP 9112879 A JP9112879 A JP 9112879A JP S5614440 A JPS5614440 A JP S5614440A
Authority
JP
Japan
Prior art keywords
pipe
glass film
base material
fiber base
deposit
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
JP9112879A
Other languages
Japanese (ja)
Other versions
JPS5740094B2 (en
Inventor
Yasuji Omori
Masaaki Yoshida
Hiroshi Yokota
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.)
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Sumitomo Electric Industries 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 Nippon Telegraph and Telephone Corp, Sumitomo Electric Industries Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9112879A priority Critical patent/JPS5614440A/en
Publication of JPS5614440A publication Critical patent/JPS5614440A/en
Publication of JPS5740094B2 publication Critical patent/JPS5740094B2/ja
Granted 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
    • C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners

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)
  • Glass Melting And Manufacturing (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To prevent an absorption loss due to OH group by depositing a clad layer and a core layer inside a pipe and depositing a P2O5 glass film on the inner surface of the core layer. CONSTITUTION:Water contained in the internal gas of a pipe is prevented from being taken in a core for a fiber base material as OH groups in a process of making the pipe with films formed solid to manufacture a water-free optical fiber base material. For example, SiCl4 and O2 are fed into a quartz pipe and heated at 1,750 deg.C to deposit a synthetic quartz glass film 18 times. SiCl4 and GeCl4 are then fed to deposit an SiO2-GeO2 glass film 5 times as a core layer. POCl3 is further fed and heated at 1,850 deg.C to deposit a P2O5 glass film. Thus, the time required to make the pipe with the films formed solid is reduced, and impurities, especially water produced in the pipe in the deposition processes are removed.
JP9112879A 1979-07-17 1979-07-17 Manufacture of optical fiber base material Granted JPS5614440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9112879A JPS5614440A (en) 1979-07-17 1979-07-17 Manufacture of optical fiber base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9112879A JPS5614440A (en) 1979-07-17 1979-07-17 Manufacture of optical fiber base material

Publications (2)

Publication Number Publication Date
JPS5614440A true JPS5614440A (en) 1981-02-12
JPS5740094B2 JPS5740094B2 (en) 1982-08-25

Family

ID=14017887

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9112879A Granted JPS5614440A (en) 1979-07-17 1979-07-17 Manufacture of optical fiber base material

Country Status (1)

Country Link
JP (1) JPS5614440A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6284996A (en) * 1985-10-07 1987-04-18 株式会社川上製作所 Vacuum compression method and device for laminated sheet material
WO2004002910A1 (en) * 2002-06-29 2004-01-08 Lg Cable Ltd. Method for fabricating optical fiber preform without hydroxyl group in core

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6284996A (en) * 1985-10-07 1987-04-18 株式会社川上製作所 Vacuum compression method and device for laminated sheet material
WO2004002910A1 (en) * 2002-06-29 2004-01-08 Lg Cable Ltd. Method for fabricating optical fiber preform without hydroxyl group in core

Also Published As

Publication number Publication date
JPS5740094B2 (en) 1982-08-25

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