JPS5637242A - Manufacture of fiber base material for optical communication - Google Patents
Manufacture of fiber base material for optical communicationInfo
- Publication number
- JPS5637242A JPS5637242A JP11210279A JP11210279A JPS5637242A JP S5637242 A JPS5637242 A JP S5637242A JP 11210279 A JP11210279 A JP 11210279A JP 11210279 A JP11210279 A JP 11210279A JP S5637242 A JPS5637242 A JP S5637242A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- temp
- converted
- base material
- vitrifying
- 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
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]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
- C03B2201/10—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with boron
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Thermal 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 obtain the titled base material without exerting unfavorable influence on glass fine powder and transparent glass by heat vitrifying glass material subjected to combustion oxidation at a temp. near the transparently vitrifying temp. while feeding O2 gas into a pipelike starting member. CONSTITUTION:Glass fine powdered body 22 is heated ro the transparently vitrifying temp. (about 1,300 deg.C) with heater 28, and while feeding O2 gas into support pipe 23 and substrate 21 from inlet 24, pipe 23 is slowly lowered with lift 26. Body 22 is successively converted into transparent glass 29 from the lower end. At the same time, substrate 21 is converted into B2O3 by combustion vitrification, and it is partially evaporated. When the whole of body 22 is converted into transparent glass 29, starting member 21 disppears thoroughly or remains as glass. No stress is imposed on glass 29 from member 21, and the remaining glass may be removed with hydrofluoric acid.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11210279A JPS6041626B2 (en) | 1979-08-31 | 1979-08-31 | Manufacturing method of fiber base material for optical communication |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11210279A JPS6041626B2 (en) | 1979-08-31 | 1979-08-31 | Manufacturing method of fiber base material for optical communication |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5637242A true JPS5637242A (en) | 1981-04-10 |
JPS6041626B2 JPS6041626B2 (en) | 1985-09-18 |
Family
ID=14578175
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11210279A Expired JPS6041626B2 (en) | 1979-08-31 | 1979-08-31 | Manufacturing method of fiber base material for optical communication |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6041626B2 (en) |
-
1979
- 1979-08-31 JP JP11210279A patent/JPS6041626B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS6041626B2 (en) | 1985-09-18 |
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