JPS5448565A - Production of fiber for optical communication - Google Patents

Production of fiber for optical communication

Info

Publication number
JPS5448565A
JPS5448565A JP9165177A JP9165177A JPS5448565A JP S5448565 A JPS5448565 A JP S5448565A JP 9165177 A JP9165177 A JP 9165177A JP 9165177 A JP9165177 A JP 9165177A JP S5448565 A JPS5448565 A JP S5448565A
Authority
JP
Japan
Prior art keywords
transparent glass
refractive index
fiber
fine powder
powder sintered
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
JP9165177A
Other languages
Japanese (ja)
Other versions
JPS5516980B2 (en
Inventor
Tatsuo Izawa
Takao Shioda
Koichi Inada
Takeru Fukuda
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.)
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujikura Ltd
Nippon Telegraph and Telephone Corp
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 Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP9165177A priority Critical patent/JPS5448565A/en
Publication of JPS5448565A publication Critical patent/JPS5448565A/en
Publication of JPS5516980B2 publication Critical patent/JPS5516980B2/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]

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)

Abstract

PURPOSE:To reduce the refractive index drop portion of the fiber without impairing the advantages of a flame hydrolysis method by specifying the production process of the parent material. CONSTITUTION:A glass fine powder sintered body 12 having a specified dopant concentration distribution is formed on a starting member 10 by a flame hydrolysis external deposition method to obtain a hollow transparent glass body 14, after which this is made to the transparent glass body of solid type. It is then elongated to a slender transparent glass body rod 160, by which the refractive index drop portion 180 created in the central part is reduced relatively. Next, a glass fine powder sintered body 20 for core 200 having such a dopant concentration distribution at which the refractive index decreases continuously and a glass fine powder sintered body 22 for clad 220 of a constant refractive index are subsequently formed on the slender transparent glass body rod 160, after which the rod is converted to transparent glass to obtain a parent material 24. This is then spun to obtain the fiber.
JP9165177A 1977-07-30 1977-07-30 Production of fiber for optical communication Granted JPS5448565A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9165177A JPS5448565A (en) 1977-07-30 1977-07-30 Production of fiber for optical communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9165177A JPS5448565A (en) 1977-07-30 1977-07-30 Production of fiber for optical communication

Publications (2)

Publication Number Publication Date
JPS5448565A true JPS5448565A (en) 1979-04-17
JPS5516980B2 JPS5516980B2 (en) 1980-05-08

Family

ID=14032408

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9165177A Granted JPS5448565A (en) 1977-07-30 1977-07-30 Production of fiber for optical communication

Country Status (1)

Country Link
JP (1) JPS5448565A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS573734A (en) * 1980-05-01 1982-01-09 Corning Glass Works Tin preform for light-conducting path and formation thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4918909A (en) * 1972-03-30 1974-02-19
JPS5085345A (en) * 1973-11-28 1975-07-09

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4918909A (en) * 1972-03-30 1974-02-19
JPS5085345A (en) * 1973-11-28 1975-07-09

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS573734A (en) * 1980-05-01 1982-01-09 Corning Glass Works Tin preform for light-conducting path and formation thereof
JPH0244777B2 (en) * 1980-05-01 1990-10-05 Corning Glass Works

Also Published As

Publication number Publication date
JPS5516980B2 (en) 1980-05-08

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