KR850000288B1 - Method of fabrication malti-mode optical fiber preforms - Google Patents

Method of fabrication malti-mode optical fiber preforms

Info

Publication number
KR850000288B1
KR850000288B1 KR8003838A KR800003838A KR850000288B1 KR 850000288 B1 KR850000288 B1 KR 850000288B1 KR 8003838 A KR8003838 A KR 8003838A KR 800003838 A KR800003838 A KR 800003838A KR 850000288 B1 KR850000288 B1 KR 850000288B1
Authority
KR
South Korea
Prior art keywords
malti
fabrication
optical fiber
mode optical
fiber preforms
Prior art date
Application number
KR8003838A
Other languages
Korean (ko)
Other versions
KR830004170A (en
Inventor
Shoichi Sato
Masao Kawachi
Motohiro Nakahara
Hanawa Fumiaki
Takao Edahiro
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
Application filed by Nippon Telegraph & Telephone filed Critical Nippon Telegraph & Telephone
Priority to KR8003838A priority Critical patent/KR850000288B1/en
Publication of KR830004170A publication Critical patent/KR830004170A/en
Priority to KR1019830004873A priority patent/KR850000289B1/en
Application granted granted Critical
Publication of KR850000288B1 publication Critical patent/KR850000288B1/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

Landscapes

  • Engineering & Computer Science (AREA)
  • 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

A vertical axis (2), as a seeding axis, is rotated and raised by a controller (3). Glass material, gas and fuel are supplied through a mixing torch (4) from supplying equipment (6). The porous glass preform (11) is heated at 1500-1700≰C by a ringshaped heater (13) to prepare the transparent glass preform (14). Halogen gas (15) for dehydration is supplied through a pipe (16). The mixing torch has an angle of 10-60≰ with the vertical axis. Waste gas is exhausted through an exhaust port (9).
KR8003838A 1980-10-06 1980-10-06 Method of fabrication malti-mode optical fiber preforms KR850000288B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR8003838A KR850000288B1 (en) 1980-10-06 1980-10-06 Method of fabrication malti-mode optical fiber preforms
KR1019830004873A KR850000289B1 (en) 1980-10-06 1983-10-14 Method of fabrication single-mode optical fiber preforms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR8003838A KR850000288B1 (en) 1980-10-06 1980-10-06 Method of fabrication malti-mode optical fiber preforms

Publications (2)

Publication Number Publication Date
KR830004170A KR830004170A (en) 1983-07-06
KR850000288B1 true KR850000288B1 (en) 1985-03-16

Family

ID=19217879

Family Applications (2)

Application Number Title Priority Date Filing Date
KR8003838A KR850000288B1 (en) 1980-10-06 1980-10-06 Method of fabrication malti-mode optical fiber preforms
KR1019830004873A KR850000289B1 (en) 1980-10-06 1983-10-14 Method of fabrication single-mode optical fiber preforms

Family Applications After (1)

Application Number Title Priority Date Filing Date
KR1019830004873A KR850000289B1 (en) 1980-10-06 1983-10-14 Method of fabrication single-mode optical fiber preforms

Country Status (1)

Country Link
KR (2) KR850000288B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101157674B1 (en) * 2004-03-04 2012-06-20 신에쓰 가가꾸 고교 가부시끼가이샤 Fabrication Method of Porous Glass Preform for Optical Fiber, and Glass Preform Fabricated Thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101157674B1 (en) * 2004-03-04 2012-06-20 신에쓰 가가꾸 고교 가부시끼가이샤 Fabrication Method of Porous Glass Preform for Optical Fiber, and Glass Preform Fabricated Thereby

Also Published As

Publication number Publication date
KR840004665A (en) 1984-10-22
KR830004170A (en) 1983-07-06
KR850000289B1 (en) 1985-03-16

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