JPS6424043A - Burner for synthesizing porous base material of optical fiber - Google Patents

Burner for synthesizing porous base material of optical fiber

Info

Publication number
JPS6424043A
JPS6424043A JP18061787A JP18061787A JPS6424043A JP S6424043 A JPS6424043 A JP S6424043A JP 18061787 A JP18061787 A JP 18061787A JP 18061787 A JP18061787 A JP 18061787A JP S6424043 A JPS6424043 A JP S6424043A
Authority
JP
Japan
Prior art keywords
nozzle
inert gas
gas nozzle
burner
oxyhydrogen flame
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
JP18061787A
Other languages
Japanese (ja)
Other versions
JPH0534298B2 (en
Inventor
Toshiki Tsutsumi
Fumiaki Hanawa
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.)
Tatsuta Electric Wire and Cable Co Ltd
NTT Inc
Original Assignee
Nippon Telegraph and Telephone Corp
Tatsuta Electric Wire and Cable Co 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, Tatsuta Electric Wire and Cable Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP18061787A priority Critical patent/JPS6424043A/en
Publication of JPS6424043A publication Critical patent/JPS6424043A/en
Publication of JPH0534298B2 publication Critical patent/JPH0534298B2/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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—Reactant deposition burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/10—Split ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/16—Non-circular ports, e.g. square or oval
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C03B2207/22—Inert gas details

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)
  • Gas Burners (AREA)

Abstract

PURPOSE:To synthesize a small-diameter core part porous body having a uniform refractive index distribution by arranging oppositely an inert gas nozzle with a raw gas nozzle in between, and providing an oxyhydrogen flame forming gas nozzle surrounding the above-mentioned nozzles. CONSTITUTION:The two opposed inert gas nozzles 5 and 7 are arranged with the raw gas nozzle 3 in between. The triple-pipe oxyhydrogen flame forming gas nozzle 9 consisting of a gaseous oxygen nozzle 11, an inert gas nozzle 13, and a gaseous hydrogen nozzle 15 is provided to surround the three nozzles 3, 5, and 7 to obtain the burner 1 for synthesizing an optical fiber porous base material. In the cross section 17 of the flame generated from the synthesis burner 1, an oxyhydrogen flame 19 surrounds a raw gas current and an inert gas current. Moreover, the inert gas current 25 covers the raw gas current through a mixing part 23, and the raw gas current is brought into contact with the oxyhydrogen flame 19 at a narrow uncovered part 21. By this method, a core part porous body having a sufficiently small diameter and having an excellent refractive index distribution can be synthesized.
JP18061787A 1987-07-20 1987-07-20 Burner for synthesizing porous base material of optical fiber Granted JPS6424043A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18061787A JPS6424043A (en) 1987-07-20 1987-07-20 Burner for synthesizing porous base material of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18061787A JPS6424043A (en) 1987-07-20 1987-07-20 Burner for synthesizing porous base material of optical fiber

Publications (2)

Publication Number Publication Date
JPS6424043A true JPS6424043A (en) 1989-01-26
JPH0534298B2 JPH0534298B2 (en) 1993-05-21

Family

ID=16086356

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18061787A Granted JPS6424043A (en) 1987-07-20 1987-07-20 Burner for synthesizing porous base material of optical fiber

Country Status (1)

Country Link
JP (1) JPS6424043A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55168041U (en) * 1979-05-22 1980-12-03
JPS5722135A (en) * 1980-07-11 1982-02-05 Nippon Telegr & Teleph Corp <Ntt> Production of parent material for single mode optical fiber
JPS6046939A (en) * 1983-08-22 1985-03-14 Fujikura Ltd Manufacture of glass preform for optical fiber
JPH0477690A (en) * 1990-07-20 1992-03-11 Nec Corp Controlling device for interfere removing antenna

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55168041U (en) * 1979-05-22 1980-12-03
JPS5722135A (en) * 1980-07-11 1982-02-05 Nippon Telegr & Teleph Corp <Ntt> Production of parent material for single mode optical fiber
JPS6046939A (en) * 1983-08-22 1985-03-14 Fujikura Ltd Manufacture of glass preform for optical fiber
JPH0477690A (en) * 1990-07-20 1992-03-11 Nec Corp Controlling device for interfere removing antenna

Also Published As

Publication number Publication date
JPH0534298B2 (en) 1993-05-21

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