JPS57166328A - Manufacturing of preform for fluoride optical fiber - Google Patents

Manufacturing of preform for fluoride optical fiber

Info

Publication number
JPS57166328A
JPS57166328A JP5055881A JP5055881A JPS57166328A JP S57166328 A JPS57166328 A JP S57166328A JP 5055881 A JP5055881 A JP 5055881A JP 5055881 A JP5055881 A JP 5055881A JP S57166328 A JPS57166328 A JP S57166328A
Authority
JP
Japan
Prior art keywords
preform
rod
raw material
molten
seed rod
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
JP5055881A
Other languages
Japanese (ja)
Other versions
JPS6126502B2 (en
Inventor
Nariyuki Mitachi
Tadashi Miyashita
Teruhisa Kanamori
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
Original Assignee
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5055881A priority Critical patent/JPS57166328A/en
Publication of JPS57166328A publication Critical patent/JPS57166328A/en
Publication of JPS6126502B2 publication Critical patent/JPS6126502B2/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
    • C03B37/0128—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass
    • C03B37/01291—Manufacture of preforms for drawing fibres or filaments starting from pulverulent glass by progressive melting, e.g. melting glass powder during delivery to and adhering the so-formed melt to a target or preform, e.g. the Plasma Oxidation Deposition [POD] process
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/80—Non-oxide glasses or glass-type compositions
    • C03B2201/82—Fluoride glasses, e.g. ZBLAN glass

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)
  • Glass Compositions (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To manufacture the titled preform, easily, by depositing molten raw material continuously to the top of a heated rotating seed rod, quenching the molten material to form a glass rod, and annealing the rod. CONSTITUTION:The seed rod 3 is fixed with the collet chuck 16 and rotated with the motor 9. Powdery metal fluoride, etc. is dropped continuously from the raw material supplying tank 4 to the center of the ring heater 2 by the aid of the vibrator 8. The falling raw material powder is heated at about 1,000-1,200 deg.C with the heater 2, molten to form droplets, and deposited to the top of the seed rod 3. The seed rod is pulled down by the gear 11 for vertical transfer, and quenched to about 250-350 deg.C to form a glass rod, which is annealed in the annealing oven 19 at a definite temperature. The obtained preform 1 is transferred downward to obtain a preform for fluoride optical fiber continuously.
JP5055881A 1981-04-06 1981-04-06 Manufacturing of preform for fluoride optical fiber Granted JPS57166328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5055881A JPS57166328A (en) 1981-04-06 1981-04-06 Manufacturing of preform for fluoride optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5055881A JPS57166328A (en) 1981-04-06 1981-04-06 Manufacturing of preform for fluoride optical fiber

Publications (2)

Publication Number Publication Date
JPS57166328A true JPS57166328A (en) 1982-10-13
JPS6126502B2 JPS6126502B2 (en) 1986-06-20

Family

ID=12862332

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5055881A Granted JPS57166328A (en) 1981-04-06 1981-04-06 Manufacturing of preform for fluoride optical fiber

Country Status (1)

Country Link
JP (1) JPS57166328A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983942A (en) * 1982-11-02 1984-05-15 ヘレウス・クアルツシユメルツエ・ゲゼルシヤフト・ミツト・ベシユレンクタ−・ハフツング Manufacture of elongated glass article with ununiform refractive index distribution
US4537864A (en) * 1983-08-31 1985-08-27 Corning Glass Works Metal fluoride glasses in the CdF2 -PbF2 -AlF3 -(LiF) system
FR2649392A1 (en) * 1989-07-06 1991-01-11 France Etat Ponts Chaussees PROCESS FOR THE CONTINUOUS PRODUCTION OF A GLASS BAR, IN PARTICULAR FOR THE PRODUCTION OF LASER MATRICES OR PREFORMS FOR OPTICAL FIBER DRAWING
FR2686597A1 (en) * 1992-01-28 1993-07-30 Alcatel Nv Process for the manufacture of a glass tube, especially of fluorine glass

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5983942A (en) * 1982-11-02 1984-05-15 ヘレウス・クアルツシユメルツエ・ゲゼルシヤフト・ミツト・ベシユレンクタ−・ハフツング Manufacture of elongated glass article with ununiform refractive index distribution
US4537864A (en) * 1983-08-31 1985-08-27 Corning Glass Works Metal fluoride glasses in the CdF2 -PbF2 -AlF3 -(LiF) system
FR2649392A1 (en) * 1989-07-06 1991-01-11 France Etat Ponts Chaussees PROCESS FOR THE CONTINUOUS PRODUCTION OF A GLASS BAR, IN PARTICULAR FOR THE PRODUCTION OF LASER MATRICES OR PREFORMS FOR OPTICAL FIBER DRAWING
FR2686597A1 (en) * 1992-01-28 1993-07-30 Alcatel Nv Process for the manufacture of a glass tube, especially of fluorine glass
US5350433A (en) * 1992-01-28 1994-09-27 Alcatel N.V. Method of manufacturing a cylindrical part from glass, especially from fluorinated glass by maintaining a thin gaseous film around the cylinder

Also Published As

Publication number Publication date
JPS6126502B2 (en) 1986-06-20

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