JPS6442337A - Production of base material for large sized single mode optical fiber - Google Patents
Production of base material for large sized single mode optical fiberInfo
- Publication number
- JPS6442337A JPS6442337A JP19849787A JP19849787A JPS6442337A JP S6442337 A JPS6442337 A JP S6442337A JP 19849787 A JP19849787 A JP 19849787A JP 19849787 A JP19849787 A JP 19849787A JP S6442337 A JPS6442337 A JP S6442337A
- Authority
- JP
- Japan
- Prior art keywords
- sintering
- rod
- base material
- clad layer
- obtd
- 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
Abstract
PURPOSE:To improve productivity of the title base material containing no foams and generating scarce transmission loss by depositing porous soot for a first clad layer on a glass rod for core, drawing the rod after sintering, then sintering again after depositing porous soot on a second clad layer on the rod. CONSTITUTION:A specified amt. of gaseous starting material (e.g. silane compd.) is flowed from a multilayered pipe burner 1 for forming soot on a glass rod 2 (e.g. quartz) to be formed to a core which has been cleaned previously by subjecting the surface to a specified treatment, while turning the rod 2 and pulling slowly, and porous soot 3 is deposited uniformly by a flame hydrolysis. The glass rod is drawn while sintering in a calcination furnace into which sintering gas is introduced. After cleaning obtd. first clad layer 5, porous soot 4 for a second clad layer is deposited by the similar procedure. The title base material is obtd. by sintering the obtd. clad product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19849787A JPS6442337A (en) | 1987-08-07 | 1987-08-07 | Production of base material for large sized single mode optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19849787A JPS6442337A (en) | 1987-08-07 | 1987-08-07 | Production of base material for large sized single mode optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6442337A true JPS6442337A (en) | 1989-02-14 |
Family
ID=16392110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19849787A Pending JPS6442337A (en) | 1987-08-07 | 1987-08-07 | Production of base material for large sized single mode optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6442337A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10154544B2 (en) | 2010-05-19 | 2018-12-11 | Eurokera | Preparation of an article in glass or in glass-ceramic with improved coating and said article |
-
1987
- 1987-08-07 JP JP19849787A patent/JPS6442337A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10154544B2 (en) | 2010-05-19 | 2018-12-11 | Eurokera | Preparation of an article in glass or in glass-ceramic with improved coating and said article |
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