JPS56155038A - Preparation of base material for optical fiber - Google Patents
Preparation of base material for optical fiberInfo
- Publication number
- JPS56155038A JPS56155038A JP5723280A JP5723280A JPS56155038A JP S56155038 A JPS56155038 A JP S56155038A JP 5723280 A JP5723280 A JP 5723280A JP 5723280 A JP5723280 A JP 5723280A JP S56155038 A JPS56155038 A JP S56155038A
- Authority
- JP
- Japan
- Prior art keywords
- gelatinized
- optical fiber
- refractive index
- controlling
- base material
- 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]
- C03B37/016—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] by a liquid phase reaction process, e.g. through a gel phase
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Glass Melting And Manufacturing (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
PURPOSE:To prepare a base material for an optical fiber, capable of readily controlling the refractive index, and mass-producible, by hydrolyzing Si(OCH3)4 or Si(OC2H5)4, gelatinizing the hydrolyzate, drying the gelatinized hydrolyzate, immersing the resultant porous material in a dopant for controlling the refractive index, and sintering the material thus obtained. CONSTITUTION:A mixture solution 2 containing a raw material Si(OCH3)4 or Si(OC2H5)4 is introduced into a quartz glass container 1, hydrolyzed, heat-treated in a reaction kiln 4 and gelatinized. the gelatinized material is then dried by heating to 150-800 deg.C at a heating rate of about 1 deg.C/sec while passing Ar gas through the kiln 4 to form a porous material 3. The resultant material 3 is then immersed in a dopant solution 6, e.g. 50% phosphoric acid solution, for controlling the refractive index and then in pure water 7 by adjusting the immersion time to cause the concentration distribution from the periphery to the center thereof. The material 3 after the immersion treatment is introduced into the reaction kiln 4 and heated while passing Ar gas therethrough at a heating rate of about 1 deg.C/sec to remove the OH groups and CH3 groups. The dried material 3 is then heated in a sintering electric furnace 9 to give a transparent glassy material 8 (base material for an optical fiber).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5723280A JPS56155038A (en) | 1980-04-30 | 1980-04-30 | Preparation of base material for optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5723280A JPS56155038A (en) | 1980-04-30 | 1980-04-30 | Preparation of base material for optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56155038A true JPS56155038A (en) | 1981-12-01 |
Family
ID=13049776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5723280A Pending JPS56155038A (en) | 1980-04-30 | 1980-04-30 | Preparation of base material for optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56155038A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722131A (en) * | 1980-07-15 | 1982-02-05 | Hitachi Ltd | Production of multilayer gel structure |
| JPS60166240A (en) * | 1984-02-03 | 1985-08-29 | Seiko Epson Corp | Manufacturing method for transparent material with refractive index distribution |
| JPS6197138A (en) * | 1984-10-16 | 1986-05-15 | Hitachi Cable Ltd | Method for manufacturing optical glass bodies |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5019520A (en) * | 1973-05-31 | 1975-03-01 | ||
| JPS5073908A (en) * | 1973-10-19 | 1975-06-18 | ||
| JPS5131712A (en) * | 1974-09-12 | 1976-03-18 | Tokyo Shibaura Electric Co | Garasu no seizohoho |
-
1980
- 1980-04-30 JP JP5723280A patent/JPS56155038A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5019520A (en) * | 1973-05-31 | 1975-03-01 | ||
| JPS5073908A (en) * | 1973-10-19 | 1975-06-18 | ||
| JPS5131712A (en) * | 1974-09-12 | 1976-03-18 | Tokyo Shibaura Electric Co | Garasu no seizohoho |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5722131A (en) * | 1980-07-15 | 1982-02-05 | Hitachi Ltd | Production of multilayer gel structure |
| JPS60166240A (en) * | 1984-02-03 | 1985-08-29 | Seiko Epson Corp | Manufacturing method for transparent material with refractive index distribution |
| JPS6197138A (en) * | 1984-10-16 | 1986-05-15 | Hitachi Cable Ltd | Method for manufacturing optical glass bodies |
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