JPS5468645A - Production of optical fibers - Google Patents
Production of optical fibersInfo
- Publication number
- JPS5468645A JPS5468645A JP13610377A JP13610377A JPS5468645A JP S5468645 A JPS5468645 A JP S5468645A JP 13610377 A JP13610377 A JP 13610377A JP 13610377 A JP13610377 A JP 13610377A JP S5468645 A JPS5468645 A JP S5468645A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- glass rod
- covering
- diameter
- constant
- 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
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
- C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique
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)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
PURPOSE:To form a fiber of a constant ratio of its core layer and covering layer by supplying glass raw materials respectively in the form of glass rods into double crucibles for continuous spinning of the optical fiber and controlling their diameters thereby making the feed ratios of both constant. CONSTITUTION:Soot for core and soot for covering having respectively once melted in cruicibles 6, 16 are drawn out through effluent ports 7, 17 to let a glass rod 8 for core layer and a glass rod 18 for covering be formed. Following to this, the glass rod 8 is continuously fed into the inner crucible 12 of the double crucibles and the glass rod 18 into the outer crucible 21 respectively, where they are remelted and are then drawn out through effluent ports 23, 24, whereby the optical fiber composed of the double structure of the core layer and covering layer is produced. The take-up of the abovementioned glass rods 8, 18 is kept at respectively specified values by the glass rod diameter control rollers 10, 20 which are controlled by the signals from glass diameter detectors 9, 19 to make the feed ratios to the double crucibles constant, whereby the ratio between the covering layer diameter and covering layer thickness of the fiber formed is made constant. The fiber diameter is defined by using similar detector 27 and control roller 28.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13610377A JPS5468645A (en) | 1977-11-11 | 1977-11-11 | Production of optical fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13610377A JPS5468645A (en) | 1977-11-11 | 1977-11-11 | Production of optical fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5468645A true JPS5468645A (en) | 1979-06-01 |
Family
ID=15167337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13610377A Pending JPS5468645A (en) | 1977-11-11 | 1977-11-11 | Production of optical fibers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5468645A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5879426A (en) * | 1996-08-12 | 1999-03-09 | The United States Of America As Represented By The Secretary Of The Navy | Process for making optical fibers from core and cladding glass rods |
| WO2000075086A1 (en) * | 1999-06-03 | 2000-12-14 | Corning Incorporated | Flow control for optical fiber fabrication using the double crucible technique |
| CN110981180A (en) * | 2019-12-13 | 2020-04-10 | 中国科学院西安光学精密机械研究所 | Device and method for preparing single-mode optical fiber preform |
-
1977
- 1977-11-11 JP JP13610377A patent/JPS5468645A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5879426A (en) * | 1996-08-12 | 1999-03-09 | The United States Of America As Represented By The Secretary Of The Navy | Process for making optical fibers from core and cladding glass rods |
| WO2000075086A1 (en) * | 1999-06-03 | 2000-12-14 | Corning Incorporated | Flow control for optical fiber fabrication using the double crucible technique |
| US6250112B1 (en) * | 1999-06-03 | 2001-06-26 | Corning Incorporated | Method of controlling an extrusion of glass to make an optical fiber |
| CN110981180A (en) * | 2019-12-13 | 2020-04-10 | 中国科学院西安光学精密机械研究所 | Device and method for preparing single-mode optical fiber preform |
| CN110981180B (en) * | 2019-12-13 | 2021-10-15 | 中国科学院西安光学精密机械研究所 | Device and method for preparing single-mode optical fiber preform |
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