JPS5692502A - Production of optical fiber - Google Patents
Production of optical fiberInfo
- Publication number
- JPS5692502A JPS5692502A JP16978779A JP16978779A JPS5692502A JP S5692502 A JPS5692502 A JP S5692502A JP 16978779 A JP16978779 A JP 16978779A JP 16978779 A JP16978779 A JP 16978779A JP S5692502 A JPS5692502 A JP S5692502A
- Authority
- JP
- Japan
- Prior art keywords
- preform
- rods
- alpha
- refractive index
- rod
- 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
Landscapes
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
PURPOSE:To obtain a preform rod of a wide band in long size by combining a plurality of two or more kinds of preform rods of parameters having different refractive index distributions and spinning long-sized preform rods. CONSTITUTION:All of parts 1a, 1b, 1c, 1d are preform rods manufactured by a CVD method and a VAD method. The refractive index distribution parameters alpha of the respective preform rods 1a-1d have been elucidated by the measurements of the respective refractive index distributions and the calculations based on said measurements, the alpha values of the preform rods 1a, 1c are smaller than 2 and the alpha values of the preform rods 1b, 1d are larger than 2; for example, those are alpha= 1.8 and alpha=2.2, respectively. These rods are connected by melt-stricking in the lengthwise direction in order of 1a, 1b, 1c, 1d, and if this rod is spun, a long-sized preform rod is obtained.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16978779A JPS5692502A (en) | 1979-12-26 | 1979-12-26 | Production of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16978779A JPS5692502A (en) | 1979-12-26 | 1979-12-26 | Production of optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5692502A true JPS5692502A (en) | 1981-07-27 |
Family
ID=15892860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16978779A Pending JPS5692502A (en) | 1979-12-26 | 1979-12-26 | Production of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5692502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5975211A (en) * | 1982-10-22 | 1984-04-27 | Furukawa Electric Co Ltd:The | Constituting method of optical transmission line |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49102356A (en) * | 1973-01-30 | 1974-09-27 | ||
| JPS51141646A (en) * | 1975-06-01 | 1976-12-06 | Sumitomo Electric Ind Ltd | Method for manufacturing fiber for light communication |
| JPS53131054A (en) * | 1977-04-21 | 1978-11-15 | Nippon Telegr & Teleph Corp <Ntt> | Construction of wide range transmission passage of graded index multi- mode fiber |
-
1979
- 1979-12-26 JP JP16978779A patent/JPS5692502A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49102356A (en) * | 1973-01-30 | 1974-09-27 | ||
| JPS51141646A (en) * | 1975-06-01 | 1976-12-06 | Sumitomo Electric Ind Ltd | Method for manufacturing fiber for light communication |
| JPS53131054A (en) * | 1977-04-21 | 1978-11-15 | Nippon Telegr & Teleph Corp <Ntt> | Construction of wide range transmission passage of graded index multi- mode fiber |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5975211A (en) * | 1982-10-22 | 1984-04-27 | Furukawa Electric Co Ltd:The | Constituting method of optical transmission line |
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