JPS57209846A - Manufacture of optical fiber - Google Patents
Manufacture of optical fiberInfo
- Publication number
- JPS57209846A JPS57209846A JP56092992A JP9299281A JPS57209846A JP S57209846 A JPS57209846 A JP S57209846A JP 56092992 A JP56092992 A JP 56092992A JP 9299281 A JP9299281 A JP 9299281A JP S57209846 A JPS57209846 A JP S57209846A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- pipe
- plastic pipe
- elastic modulus
- expansion coefficient
- 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
Abstract
PURPOSE: To obtain a continuous optical fiber having high strength and excellent transmission characteristics, by covering an optical fiber with a sheath having high elastic modulus and low linear expansion coefficient and obtained by the dielectric heating and drawing of a plastic pipe.
CONSTITUTION: An optical fiber preform 2 attached to the preform feeder 1 is heated and softened in the drawing furnace 3, and spun to an optical fiber 4 having definite diameter. The optical fiber is inserted into a plastic pipe 8 molded by the extruder 5 and the cross head 6, and cooled in the cooling tank 7. The cooled pipe 8 is heated dielectrically 10 and drawn by the drawing rollers 9 having different speed to obtain an optical fiber 4 covered with a pipe having low expansion coefficient and high elastic modulus. The covered optical fiber 11 is annealed in an annealing furnace at a temperature slightly lower than the softening temperature of the plastic pipe, and wound with the winder 12. The pipe 8 is made of a thermoplastic resin such as PE, PP, etc.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56092992A JPS57209846A (en) | 1981-06-18 | 1981-06-18 | Manufacture of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56092992A JPS57209846A (en) | 1981-06-18 | 1981-06-18 | Manufacture of optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57209846A true JPS57209846A (en) | 1982-12-23 |
Family
ID=14069856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56092992A Pending JPS57209846A (en) | 1981-06-18 | 1981-06-18 | Manufacture of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57209846A (en) |
-
1981
- 1981-06-18 JP JP56092992A patent/JPS57209846A/en active Pending
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