JPS576810A - Production of optical fiber cable - Google Patents
Production of optical fiber cableInfo
- Publication number
- JPS576810A JPS576810A JP7997580A JP7997580A JPS576810A JP S576810 A JPS576810 A JP S576810A JP 7997580 A JP7997580 A JP 7997580A JP 7997580 A JP7997580 A JP 7997580A JP S576810 A JPS576810 A JP S576810A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- optical fiber
- covering
- injection port
- pressure
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4479—Manufacturing methods of optical cables
Abstract
PURPOSE:To obtain an optical fiber which permits easy removal of strains by twisting tension and covering pressure by winding the optical fiber on the outside circumference of a pipe expanded by being applied with pressure in its longitudinal direction and further providing a covering material and evacuating the inside of the pipe. CONSTITUTION:With one end of a pipe 1 held closed, an end plug with an injection port is mounted to the other hand, and a gas is injected into the pipe 1 through this injection port so that the pipe 1 is pressed from its inside and is bulged. An optical fiber is wound longitudinally on the outside circumference of the pipe 1 which is made larger in outside diameter in this way, and further a covering 3 is provided on the outside circumference thereof. Thence, the inside of the pipe 1 is evacuated through said injection port, thereby restoring the original outside diameter of the pipe 1. As a result, the winding force, covering pressure, etc. having been exerted upon the fiber 2 are considerably reduced, the strains having been generated in the fiber 2 are eliminated, microbending is eliminated, and the optical fiber cable of good transmission characteristics is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7997580A JPS576810A (en) | 1980-06-13 | 1980-06-13 | Production of optical fiber cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7997580A JPS576810A (en) | 1980-06-13 | 1980-06-13 | Production of optical fiber cable |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS576810A true JPS576810A (en) | 1982-01-13 |
| JPS6243163B2 JPS6243163B2 (en) | 1987-09-11 |
Family
ID=13705318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7997580A Granted JPS576810A (en) | 1980-06-13 | 1980-06-13 | Production of optical fiber cable |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS576810A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5772107A (en) * | 1980-10-22 | 1982-05-06 | Fujikura Ltd | Production of optical cable |
| JPS58216210A (en) * | 1982-06-11 | 1983-12-15 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber cable and its manufacture |
-
1980
- 1980-06-13 JP JP7997580A patent/JPS576810A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5772107A (en) * | 1980-10-22 | 1982-05-06 | Fujikura Ltd | Production of optical cable |
| JPH0248881B2 (en) * | 1980-10-22 | 1990-10-26 | Fujikura Ltd | |
| JPS58216210A (en) * | 1982-06-11 | 1983-12-15 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber cable and its manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6243163B2 (en) | 1987-09-11 |
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