JPS6483532A - Production of optical fiber preform - Google Patents
Production of optical fiber preformInfo
- Publication number
- JPS6483532A JPS6483532A JP23745087A JP23745087A JPS6483532A JP S6483532 A JPS6483532 A JP S6483532A JP 23745087 A JP23745087 A JP 23745087A JP 23745087 A JP23745087 A JP 23745087A JP S6483532 A JPS6483532 A JP S6483532A
- Authority
- JP
- Japan
- Prior art keywords
- preform
- rod
- composite preform
- transparent
- made transparent
- 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]
- C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
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 enable the production of the titled preform in improved productivity while preventing the peeling phenomenon, by forming a porous glass layer on the outer circumference of a core glass rod for optical fiber and heating the obtained composite preform with a ring-shaped heater to produce a transparent glass preform, wherein one end of said composite preform is made transparent by heating with said ring-shaped heater and then said heater is passed along the rod from the other end to successively make the whole rod transparent. CONSTITUTION:An end (a) of a composite preform composed of a core glass rod 1 and a porous glass layer 2 is made transparent (6) by heating with a ring-shaped heater 5 to increase the bonding force between the porous glass layer 2 and the core glass rod 1. The composite preform is continuously made transparent from an end (b) opposite to the above heat-treated end (a) until the whole composite preform is made transparent to obtain the objective preform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23745087A JPS6483532A (en) | 1987-09-24 | 1987-09-24 | Production of optical fiber preform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23745087A JPS6483532A (en) | 1987-09-24 | 1987-09-24 | Production of optical fiber preform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6483532A true JPS6483532A (en) | 1989-03-29 |
Family
ID=17015524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23745087A Pending JPS6483532A (en) | 1987-09-24 | 1987-09-24 | Production of optical fiber preform |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6483532A (en) |
-
1987
- 1987-09-24 JP JP23745087A patent/JPS6483532A/en active Pending
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