JPS5717440A - Manufacture of porous glass base material for single- polarization single-mode optical fiber - Google Patents
Manufacture of porous glass base material for single- polarization single-mode optical fiberInfo
- Publication number
- JPS5717440A JPS5717440A JP9167580A JP9167580A JPS5717440A JP S5717440 A JPS5717440 A JP S5717440A JP 9167580 A JP9167580 A JP 9167580A JP 9167580 A JP9167580 A JP 9167580A JP S5717440 A JPS5717440 A JP S5717440A
- Authority
- JP
- Japan
- Prior art keywords
- glass
- sio2
- inner core
- burner
- core part
- 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.)
- Granted
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]
- C03B37/01413—Reactant delivery systems
- C03B37/0142—Reactant deposition burners
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2203/00—Fibre product details, e.g. structure, shape
- C03B2203/30—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/50—Multiple burner arrangements
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/60—Relationship between burner and deposit, e.g. position
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)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
PURPOSE:To eliminate a polishing process by forming a round rodlike inner core part and an outer core part having a specified shape and specified refractive indexes on the inner core part by a CVD method and further forming a clad part having a refractive index between the indexes of the core parts. CONSTITUTION:While rotating and pulling up a support rod 3 at a constant rate, gases shown by the figure are sprayed on the bottom of the rod 3 from a burner 11 for an inner core, and SiO2.GeO2 glass is deposited and grown by flame hydrolysis to form an inner core part 4 having a prescribed length. Gases shown by the figure are then sprayed as flames simultaneously from burners 12-15 arranged around the rod 3 perpendicularly to each other at a position just above the burner 11 at prescribed time intervals to grow outer cores 5, 7 of SiO2.GeO2 glass and outer cores 6, 8 of SiO2.B2O3 glass in the form of ridges at positions making 90 deg. angle. A clad part 9 of SiO2 glass is further formed to a prescribed thickness with a burner 16 to obtain a porous glass base material 10.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9167580A JPS5717440A (en) | 1980-07-07 | 1980-07-07 | Manufacture of porous glass base material for single- polarization single-mode optical fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9167580A JPS5717440A (en) | 1980-07-07 | 1980-07-07 | Manufacture of porous glass base material for single- polarization single-mode optical fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5717440A true JPS5717440A (en) | 1982-01-29 |
JPS6344692B2 JPS6344692B2 (en) | 1988-09-06 |
Family
ID=14033058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9167580A Granted JPS5717440A (en) | 1980-07-07 | 1980-07-07 | Manufacture of porous glass base material for single- polarization single-mode optical fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5717440A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5782133A (en) * | 1980-11-11 | 1982-05-22 | Nippon Telegr & Teleph Corp <Ntt> | Preparation of single mode optical fiber of axis unsymmetry |
EP0604785A1 (en) * | 1992-12-28 | 1994-07-06 | Corning Incorporated | Method of making optical waveguide preforms |
-
1980
- 1980-07-07 JP JP9167580A patent/JPS5717440A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5782133A (en) * | 1980-11-11 | 1982-05-22 | Nippon Telegr & Teleph Corp <Ntt> | Preparation of single mode optical fiber of axis unsymmetry |
JPS6220140B2 (en) * | 1980-11-11 | 1987-05-06 | Nippon Telegraph & Telephone | |
EP0604785A1 (en) * | 1992-12-28 | 1994-07-06 | Corning Incorporated | Method of making optical waveguide preforms |
Also Published As
Publication number | Publication date |
---|---|
JPS6344692B2 (en) | 1988-09-06 |
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