JPS56114840A - Production of optical fiber - Google Patents
Production of optical fiberInfo
- Publication number
- JPS56114840A JPS56114840A JP1383080A JP1383080A JPS56114840A JP S56114840 A JPS56114840 A JP S56114840A JP 1383080 A JP1383080 A JP 1383080A JP 1383080 A JP1383080 A JP 1383080A JP S56114840 A JPS56114840 A JP S56114840A
- Authority
- JP
- Japan
- Prior art keywords
- layer
- optical fiber
- barrier layer
- barrier
- quartz tube
- 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]
- C03B37/018—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 glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Abstract
PURPOSE:Barrier layers are formed on the inner surface of a quartz tube so that the reaction temperature is raised higher as the barrier layer comes nearer to the core layer to produce optical fiber with low loss in long wave bands as well as in short wave bands. CONSTITUTION:A barrier layer 21 is formed on the inner surface of a quartz tube 3 by the MCVD method at a relatively low temperature of 1,300-1,400 deg.C. Then, an additional layer 22 is formed on the inner surface at a temperature of 1,450- 1,550 deg.C by the MCVD method. The composition of the barrier layer 21 may be different from or equal to that of the layer 22. For example, the layer 21 is composed of a ternary system and the layer 22 is of a quanternary system. The core layer 10 is formed on the inner surface of the barrier layer 22 and the rsultant rod is drawn into a dense fiber, that is, the objective optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1383080A JPS56114840A (en) | 1980-02-07 | 1980-02-07 | Production of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1383080A JPS56114840A (en) | 1980-02-07 | 1980-02-07 | Production of optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56114840A true JPS56114840A (en) | 1981-09-09 |
Family
ID=11844184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1383080A Pending JPS56114840A (en) | 1980-02-07 | 1980-02-07 | Production of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56114840A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999067178A1 (en) * | 1998-06-25 | 1999-12-29 | Samsung Electronics Co., Ltd. | Optical fiber preform having oh barrier and manufacturing method thereof |
-
1980
- 1980-02-07 JP JP1383080A patent/JPS56114840A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999067178A1 (en) * | 1998-06-25 | 1999-12-29 | Samsung Electronics Co., Ltd. | Optical fiber preform having oh barrier and manufacturing method thereof |
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