JPS649831A - Production of preform for optical fiber - Google Patents
Production of preform for optical fiberInfo
- Publication number
- JPS649831A JPS649831A JP16402087A JP16402087A JPS649831A JP S649831 A JPS649831 A JP S649831A JP 16402087 A JP16402087 A JP 16402087A JP 16402087 A JP16402087 A JP 16402087A JP S649831 A JPS649831 A JP S649831A
- Authority
- JP
- Japan
- Prior art keywords
- rod
- glass
- etching
- preform
- quartz
- 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]
- C03B37/0148—Means for heating preforms during or immediately prior to deposition
-
- 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
- C03B37/01426—Plasma deposition burners or torches
Abstract
PURPOSE:To obtain the titled preform having low loss, by subjecting the surface of quartz based glass rod to etching at a temperature lower than dew point and under F-containing compound gas atmosphere by heat source containing no H2 in order to sufficiently remove OH and forming porous glass on the treated surface of the rod. CONSTITUTION:A quartz based glass rod having low loss and low OH produced separately is passed into a chamber 1 made of quartz and clean and anhydrous air, etc., is fed thereto at -40 deg.C dew point after drying 3. Then the rod 2 is subjected to etching by flame 6 of plasma torch 5 passing through central opening 50 in the lower part of the chamber 1 and attached so as to clean and dehydrate the surface of the rod 2. Subsequently a glass fine particle layer is deposited on the outer surface of the rod 2 after etching and vitrified to provide the aimed optical fiber preform. Further more, the glass fine particle layer is obtained by feeding a glass raw material gas such as SiCl4 together with gas for plasma generation into the torch 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16402087A JPS649831A (en) | 1987-07-02 | 1987-07-02 | Production of preform for optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16402087A JPS649831A (en) | 1987-07-02 | 1987-07-02 | Production of preform for optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS649831A true JPS649831A (en) | 1989-01-13 |
Family
ID=15785263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16402087A Pending JPS649831A (en) | 1987-07-02 | 1987-07-02 | Production of preform for optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS649831A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04132630A (en) * | 1989-12-29 | 1992-05-06 | American Teleph & Telegr Co <Att> | Method of manufacturing the product that consists of the fireproof dielectrics |
| JP2007169156A (en) * | 2005-12-23 | 2007-07-05 | Draka Comteq Bv | Method and apparatus for manufacturing low oh overcladding |
| DE102014115534A1 (en) | 2014-10-24 | 2016-04-28 | J-Plasma Gmbh | Method for the bi-directional and / or unidirectional removal of a glass cladding layer of a glass mold and a glass mold |
| WO2017172467A1 (en) * | 2016-03-28 | 2017-10-05 | Corning Incorporated | Glass manufacturing methods and apparatus |
-
1987
- 1987-07-02 JP JP16402087A patent/JPS649831A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04132630A (en) * | 1989-12-29 | 1992-05-06 | American Teleph & Telegr Co <Att> | Method of manufacturing the product that consists of the fireproof dielectrics |
| JP2007169156A (en) * | 2005-12-23 | 2007-07-05 | Draka Comteq Bv | Method and apparatus for manufacturing low oh overcladding |
| KR101350037B1 (en) * | 2005-12-23 | 2014-01-13 | 드라카 콤텍 비.브이. | Method and apparatus for manufacturing low oh overcladding |
| DE102014115534A1 (en) | 2014-10-24 | 2016-04-28 | J-Plasma Gmbh | Method for the bi-directional and / or unidirectional removal of a glass cladding layer of a glass mold and a glass mold |
| US9475729B2 (en) | 2014-10-24 | 2016-10-25 | J-Plasma Gmbh | Method for the unidirectional and or bidirectional removal of a cladding layer of an optical preform |
| WO2017172467A1 (en) * | 2016-03-28 | 2017-10-05 | Corning Incorporated | Glass manufacturing methods and apparatus |
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