GB1487371A - Optical fibre manufacture - Google Patents
Optical fibre manufactureInfo
- Publication number
- GB1487371A GB1487371A GB21488/74A GB2148874A GB1487371A GB 1487371 A GB1487371 A GB 1487371A GB 21488/74 A GB21488/74 A GB 21488/74A GB 2148874 A GB2148874 A GB 2148874A GB 1487371 A GB1487371 A GB 1487371A
- Authority
- GB
- United Kingdom
- Prior art keywords
- glass tube
- optical fibre
- blank
- fibre
- fibre manufacture
- 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.)
- Expired
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
- C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
- C03B37/01869—Collapsing
-
- 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
-
- 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
- C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
- C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
- C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/12—Drawing solid optical fibre directly from a hollow preform
- C03B2205/16—Drawing solid optical fibre directly from a hollow preform the drawn fibre consisting of circularly symmetric core and clad
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Optics & Photonics (AREA)
- Physics & Mathematics (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Glass Compositions (AREA)
Abstract
Novel dopants (dopes), namely oxides of the elements gallium, indium, arsenic and antimony, are used in a process known per se for the production of a blank for optical fibres. The inner wall of a glass tube (11) is coated with a layer (10) which, after the glass tube has been collapsed to give a blank and after the latter has been drawn to form an optical fibre, forms the fibre core. This has a higher refractive index than the fibre cladding layer formed from the glass tube. <IMAGE>
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21488/74A GB1487371A (en) | 1974-05-15 | 1974-05-15 | Optical fibre manufacture |
ZA00752407A ZA752407B (en) | 1974-05-15 | 1975-04-16 | Improvements in or relating to optical fibre manufacture |
AU80781/75A AU494245B2 (en) | 1974-05-15 | 1975-05-02 | Improvements in or relating to optical fibre manufacture |
NL7505282A NL7505282A (en) | 1974-05-15 | 1975-05-06 | PROCESS FOR THE MANUFACTURE OF AN OPTICAL FIBER AND AN OPTICAL FIBER FORM. |
IT23246/75A IT1060724B (en) | 1974-05-15 | 1975-05-13 | IMPROVEMENT IN THE OPTICAL FIBER MANUFACTURE |
DE19752521270 DE2521270A1 (en) | 1974-05-15 | 1975-05-13 | OPTICAL CONDUCTOR AND PROCEDURE FOR ITS MANUFACTURING |
CH610275A CH618409A5 (en) | 1974-05-15 | 1975-05-13 | Process for the production of a blank for optical fibres |
ES437631A ES437631A1 (en) | 1974-05-15 | 1975-05-13 | Optical fibre manufacture |
FR7515170A FR2271588B1 (en) | 1974-05-15 | 1975-05-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21488/74A GB1487371A (en) | 1974-05-15 | 1974-05-15 | Optical fibre manufacture |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1487371A true GB1487371A (en) | 1977-09-28 |
Family
ID=10163791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21488/74A Expired GB1487371A (en) | 1974-05-15 | 1974-05-15 | Optical fibre manufacture |
Country Status (8)
Country | Link |
---|---|
CH (1) | CH618409A5 (en) |
DE (1) | DE2521270A1 (en) |
ES (1) | ES437631A1 (en) |
FR (1) | FR2271588B1 (en) |
GB (1) | GB1487371A (en) |
IT (1) | IT1060724B (en) |
NL (1) | NL7505282A (en) |
ZA (1) | ZA752407B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1106710A (en) * | 1977-06-22 | 1981-08-11 | Michael G. Blankenship | Method of making optical devices |
DE3031160A1 (en) * | 1980-08-18 | 1982-04-01 | Siemens AG, 1000 Berlin und 8000 München | Cleaning of glass surfaces by etching with gas - esp. where mixt. of oxygen and sulphur hexa:fluoride is used to clean bore of quartz tube used to make blank for mfg. optical fibres |
-
1974
- 1974-05-15 GB GB21488/74A patent/GB1487371A/en not_active Expired
-
1975
- 1975-04-16 ZA ZA00752407A patent/ZA752407B/en unknown
- 1975-05-06 NL NL7505282A patent/NL7505282A/en not_active Application Discontinuation
- 1975-05-13 ES ES437631A patent/ES437631A1/en not_active Expired
- 1975-05-13 CH CH610275A patent/CH618409A5/en not_active IP Right Cessation
- 1975-05-13 IT IT23246/75A patent/IT1060724B/en active
- 1975-05-13 DE DE19752521270 patent/DE2521270A1/en not_active Withdrawn
- 1975-05-15 FR FR7515170A patent/FR2271588B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL7505282A (en) | 1975-11-18 |
IT1060724B (en) | 1982-08-20 |
DE2521270A1 (en) | 1975-11-27 |
ES437631A1 (en) | 1977-05-16 |
ZA752407B (en) | 1976-03-31 |
CH618409A5 (en) | 1980-07-31 |
FR2271588A1 (en) | 1975-12-12 |
AU8078175A (en) | 1976-11-04 |
FR2271588B1 (en) | 1981-09-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
746 | Register noted 'licences of right' (sect. 46/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19930506 |