JPS5614431A - Manufacture of optical fiber - Google Patents
Manufacture of optical fiberInfo
- Publication number
- JPS5614431A JPS5614431A JP8861479A JP8861479A JPS5614431A JP S5614431 A JPS5614431 A JP S5614431A JP 8861479 A JP8861479 A JP 8861479A JP 8861479 A JP8861479 A JP 8861479A JP S5614431 A JPS5614431 A JP S5614431A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- auxiliary burners
- main burner
- periodically
- refractive index
- 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
- 239000013307 optical fiber Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000011521 glass Substances 0.000 abstract 3
- 239000002737 fuel gas Substances 0.000 abstract 2
- XHXFXVLFKHQFAL-UHFFFAOYSA-N phosphoryl trichloride Chemical compound ClP(Cl)(Cl)=O XHXFXVLFKHQFAL-UHFFFAOYSA-N 0.000 abstract 2
- 229910006113 GeCl4 Inorganic materials 0.000 abstract 1
- 229910019213 POCl3 Inorganic materials 0.000 abstract 1
- 229910003910 SiCl4 Inorganic materials 0.000 abstract 1
- 238000000151 deposition Methods 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 abstract 1
- 239000004071 soot Substances 0.000 abstract 1
- IEXRMSFAVATTJX-UHFFFAOYSA-N tetrachlorogermane Chemical compound Cl[Ge](Cl)(Cl)Cl IEXRMSFAVATTJX-UHFFFAOYSA-N 0.000 abstract 1
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
- C03B37/01876—Means for heating tubes or rods during or immediately prior to deposition, e.g. electric resistance heaters
-
- 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
- C03B37/01807—Reactant delivery systems, e.g. reactant deposition burners
- C03B37/01815—Reactant deposition burners or deposition heating means
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/10—Internal structure or shape details
- C03B2203/18—Axial perturbations, e.g. in refractive index or composition
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:To change the refractive index of depositing core glass layers by heating a glass tube from the outside with auxiliary burners apart from a main burner to change to temp. periodically. CONSTITUTION:A plurality of fixed type auxiliary burners are set at predetermined positions apart from a moving type main burner, and the flow rates of fuel gases fed to the auxiliary burners are controlled so as to be changed periodically. For example, O2 is introduced into bubblers 12, 13, 14 holding SiCl4, GeCl4 and POCl3 through mass flow controllers 1, 2, 3, respectively to make the feed to reaction tube 15 constant. Tube 15 is heated with moving type main burner 17 to form soot on the inner wall of tube 15. A plurality of fixed type auxiliary burners 19-21 are set at the predetermined positions, and the flow rates of fuel gases are controlled with mass flow controllers 5-7, 9-10 so that they are changed in accordance with the number of core glass layers to be deposited. After forming the layers the hollow of tube 15 is eliminated by collapsing, and they are drawn to obtain an optical fiber having a refractive index which changes periodically in the longitudinal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8861479A JPS5614431A (en) | 1979-07-11 | 1979-07-11 | Manufacture of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8861479A JPS5614431A (en) | 1979-07-11 | 1979-07-11 | Manufacture of optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5614431A true JPS5614431A (en) | 1981-02-12 |
Family
ID=13947680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8861479A Pending JPS5614431A (en) | 1979-07-11 | 1979-07-11 | Manufacture of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5614431A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2780394A1 (en) * | 1998-06-25 | 1999-12-31 | Samsung Electronics Co Ltd | DEVICE AND METHOD FOR MANUFACTURING A FIBER OPTIC PREFORM BY MCVD |
| EP1116697A2 (en) * | 2000-01-14 | 2001-07-18 | Samsung Electronics Co., Ltd. | Preform for dispersion-managed optical fibre and method of fabricating the preform by modified chemical vapour deposition |
| EP1279647A2 (en) * | 2001-07-23 | 2003-01-29 | Samsung Electronics Co., Ltd. | Apparatus and method for manufacturing an optical fiber preform by modified chemical vapour deposition |
-
1979
- 1979-07-11 JP JP8861479A patent/JPS5614431A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2780394A1 (en) * | 1998-06-25 | 1999-12-31 | Samsung Electronics Co Ltd | DEVICE AND METHOD FOR MANUFACTURING A FIBER OPTIC PREFORM BY MCVD |
| US6408653B1 (en) | 1998-06-25 | 2002-06-25 | Samsung Electronics Co., Ltd. | Apparatus and method for manufacturing optical fiber preform by MCVD |
| CN1124238C (en) * | 1998-06-25 | 2003-10-15 | 三星电子株式会社 | Apparatus and method for manufacturing optical fiber preform by MCVD |
| EP1116697A2 (en) * | 2000-01-14 | 2001-07-18 | Samsung Electronics Co., Ltd. | Preform for dispersion-managed optical fibre and method of fabricating the preform by modified chemical vapour deposition |
| EP1116697A3 (en) * | 2000-01-14 | 2002-06-26 | Samsung Electronics Co., Ltd. | Preform for dispersion-managed optical fibre and method of fabricating the preform by modified chemical vapour deposition |
| US6523368B2 (en) | 2000-01-14 | 2003-02-25 | Samsung Electronics Co., Ltd | Dispersion-managed fiber preform and fabricating method thereof by MCVD |
| EP1279647A2 (en) * | 2001-07-23 | 2003-01-29 | Samsung Electronics Co., Ltd. | Apparatus and method for manufacturing an optical fiber preform by modified chemical vapour deposition |
| EP1279647A3 (en) * | 2001-07-23 | 2004-02-04 | Samsung Electronics Co., Ltd. | Apparatus and method for manufacturing an optical fiber preform by modified chemical vapour deposition |
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