JPS5727933A - Manufacture of base material for optical fiber - Google Patents
Manufacture of base material for optical fiberInfo
- Publication number
- JPS5727933A JPS5727933A JP10009780A JP10009780A JPS5727933A JP S5727933 A JPS5727933 A JP S5727933A JP 10009780 A JP10009780 A JP 10009780A JP 10009780 A JP10009780 A JP 10009780A JP S5727933 A JPS5727933 A JP S5727933A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- burner
- flame
- temp
- distance
- 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.)
- Pending
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]
- C03B37/018—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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
-
- 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]
- C03B37/018—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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
- C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
- C03B37/01815—Reactant deposition burners or deposition heating means
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 strictly control the refractive index and to manufacture an optical fiber with low loss in a wide zone by detecting the distance between a glass tube and a heating source and heating the tube while conducting control so as to keep the distance uniform. CONSTITUTION:A glass tube 1 is heated with a burner 4, and gaseous hydrogen and gaseous oxygen are fed into the burner 4 while setting the flow rates with a mass flow controller 8 so as to keep a flame uniform. The flame composed of an inner flame 2 and an outer flame 3 is regulated so that the highest temp. part of the flame contacts with the tube 1. The temp. of the heated part of the tube 1 is measured with an optical pyrometer 6, it is fed back to a table 5 fixing the burner 4, and the distance between the burner 4 and the tube 1 is controlled so as to attain a prescribed temp. For example, when the burner 4 is moved 50 times in the longitudinal direction of the tube 1 by this method, and the diameter of the tube 1 is reduced from 20mm. to 16mm., the temp. change is + or -5 deg.C.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10009780A JPS5727933A (en) | 1980-07-22 | 1980-07-22 | Manufacture of base material for optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10009780A JPS5727933A (en) | 1980-07-22 | 1980-07-22 | Manufacture of base material for optical fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5727933A true JPS5727933A (en) | 1982-02-15 |
Family
ID=14264890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10009780A Pending JPS5727933A (en) | 1980-07-22 | 1980-07-22 | Manufacture of base material for optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5727933A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100496449B1 (en) * | 2002-06-28 | 2005-06-20 | 엘에스전선 주식회사 | Outside vapor deposition apparatus for making optical fiber preform and method of making optical fiber preform using the same |
-
1980
- 1980-07-22 JP JP10009780A patent/JPS5727933A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100496449B1 (en) * | 2002-06-28 | 2005-06-20 | 엘에스전선 주식회사 | Outside vapor deposition apparatus for making optical fiber preform and method of making optical fiber preform using the same |
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