DE2122895C3 - Verfahren zur Herstellung optischer Wellenleiter - Google Patents
Verfahren zur Herstellung optischer WellenleiterInfo
- Publication number
- DE2122895C3 DE2122895C3 DE2122895A DE2122895A DE2122895C3 DE 2122895 C3 DE2122895 C3 DE 2122895C3 DE 2122895 A DE2122895 A DE 2122895A DE 2122895 A DE2122895 A DE 2122895A DE 2122895 C3 DE2122895 C3 DE 2122895C3
- Authority
- DE
- Germany
- Prior art keywords
- glass
- core
- layer
- fiber
- cladding
- 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
- 238000000034 method Methods 0.000 title claims description 11
- 230000003287 optical effect Effects 0.000 title description 8
- 239000011521 glass Substances 0.000 claims description 39
- 238000005253 cladding Methods 0.000 claims description 14
- 239000000835 fiber Substances 0.000 claims description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000007062 hydrolysis Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 239000005304 optical glass Substances 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 2
- 238000005245 sintering Methods 0.000 claims description 2
- 238000004544 sputter deposition Methods 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 239000000654 additive Substances 0.000 claims 1
- 230000000996 additive effect Effects 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 1
- 229910052782 aluminium Inorganic materials 0.000 claims 1
- 229920006240 drawn fiber Polymers 0.000 claims 1
- 229910052758 niobium Inorganic materials 0.000 claims 1
- 239000010955 niobium Substances 0.000 claims 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims 1
- 229910052715 tantalum Inorganic materials 0.000 claims 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims 1
- 229910052718 tin Inorganic materials 0.000 claims 1
- 229910052719 titanium Inorganic materials 0.000 claims 1
- 239000010936 titanium Substances 0.000 claims 1
- 238000007740 vapor deposition Methods 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 239000011162 core material Substances 0.000 description 41
- 239000010410 layer Substances 0.000 description 14
- 239000013307 optical fiber Substances 0.000 description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 238000000149 argon plasma sintering Methods 0.000 description 4
- 230000002349 favourable effect Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 239000011257 shell material Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 239000011734 sodium Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229920000851 Radite Polymers 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000006121 base glass Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007524 flame polishing Methods 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 210000000554 iris Anatomy 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910000484 niobium oxide Inorganic materials 0.000 description 1
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 description 1
- BPUBBGLMJRNUCC-UHFFFAOYSA-N oxygen(2-);tantalum(5+) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ta+5].[Ta+5] BPUBBGLMJRNUCC-UHFFFAOYSA-N 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- 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
- C03C21/00—Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/01—Other methods of shaping glass by progressive fusion or sintering of powdered glass onto a shaping substrate, i.e. accretion, e.g. plasma oxidation deposition
-
- 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
- C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
-
- 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
-
- 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
- C03B37/02—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
- 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
- C03C13/045—Silica-containing oxide glass compositions
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/02—Optical fibres with cladding with or without a coating
-
- 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
- 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
- C03B2201/32—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with aluminium
-
- 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
- C03B2201/40—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
-
- 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
- C03B2201/40—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn
- C03B2201/42—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn doped with titanium
-
- 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
- C03B2203/22—Radial profile of refractive index, composition or softening point
- C03B2203/24—Single mode [SM or monomode]
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S501/00—Compositions: ceramic
- Y10S501/90—Optical glass, e.g. silent on refractive index and/or ABBE number
Description
Claims (6)
- Patentansprüche:). Verfahren zur Herstellung optischer Glasfasern mit einem Mantel und einem Kern mit höherem Brechungsindex als dem des Mantels, dadurch gekennzeichnet, daD auf der Innenfläche eines Glasrohres eine Schicht aus Kernglasmaterial aufgebracht und das beschichtete Glasrohr zur Glasfaser ausgezogen wird.
- 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Mantelrohr aus Kieselsäureglas und das Kernglas ebenfalls aus Kieselsäureglas mit einem Dotierzusatz besieht.
- 3. Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß das Dotiermaterial aus einem oder mehreren der Oxide von Titan, Tantal, Zinn, Niob, Zirkonium oder Aluminium besieht.
- 4. Venuhren nach Anspruch I, 2 oder 3, dadurch gekennzeichnet, daß die Schicht durch Flamm- *° hydrolyse unier Niederschlagung feinteiliger Glaspartikeln und anschließendes Sintern unter Erhitzen vor oder während des Ausziehens aufgebracht wird.
- 5. Verfahren nach Anspruch 1, 2 oder 3. dadurch gekennzeichnet, daß die Schicht durch Sputtering, 2S Dampfniederschlagung oder als Glasfriite aufgebracht wird.
- 6. Verfahren nach irgendeinem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Faser in .'ner Sauerstoffatmosphäre ausgezogen und/oder gegebenenfalls die ausgezogene Faser mit festem Querschnitt in Sauerstoff nachbehandelt wird.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3626770A | 1970-05-11 | 1970-05-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2122895A1 DE2122895A1 (de) | 1971-11-25 |
DE2122895B2 DE2122895B2 (de) | 1977-03-17 |
DE2122895C3 true DE2122895C3 (de) | 1982-04-29 |
Family
ID=21887636
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2122895A Expired DE2122895C3 (de) | 1970-05-11 | 1971-05-08 | Verfahren zur Herstellung optischer Wellenleiter |
Country Status (8)
Country | Link |
---|---|
US (1) | US3711262A (de) |
JP (1) | JPS5123185B1 (de) |
BE (1) | BE766973A (de) |
CA (1) | CA922109A (de) |
DE (1) | DE2122895C3 (de) |
FR (1) | FR2088486B1 (de) |
GB (1) | GB1322993A (de) |
NL (1) | NL164014B (de) |
Families Citing this family (101)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2002589A1 (de) | 1968-02-26 | 1969-10-31 | Corning Glass Works | |
US3775075A (en) * | 1972-01-03 | 1973-11-27 | Corning Glass Works | Method of forming optical waveguide fibers |
DE2203140C3 (de) * | 1972-01-24 | 1974-06-12 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | Lichtleitfaser aus Quarzglas |
US3868170A (en) * | 1972-03-30 | 1975-02-25 | Corning Glass Works | Method of removing entrapped gas and/or residual water from glass |
DE2313202C2 (de) | 1972-03-30 | 1985-09-05 | Corning Glass Works, Corning, N.Y. | Optischer Wellenleiter |
GB1427327A (en) * | 1972-06-08 | 1976-03-10 | Standard Telephones Cables Ltd | Glass optical fibres |
US3785722A (en) * | 1972-06-20 | 1974-01-15 | Corning Glass Works | USE OF SiO{11 -NB{11 O{11 {11 AND/OR Ta{11 O{11 {11 GLASSES AS ULTRAVIOLET FILTERS |
US3806224A (en) * | 1972-10-06 | 1974-04-23 | Bell Telephone Labor Inc | Optical transmission line |
GB1434977A (en) * | 1972-10-13 | 1976-05-12 | Sumitomo Electroc Ind Ltd | Method of manufacturing an optical waveguide |
JPS4983453A (de) * | 1972-12-14 | 1974-08-10 | ||
CA967173A (en) * | 1973-01-04 | 1975-05-06 | Peter C. Schultz | Fused oxide type glasses |
US3884550A (en) * | 1973-01-04 | 1975-05-20 | Corning Glass Works | Germania containing optical waveguide |
JPS5013056A (de) * | 1973-06-04 | 1975-02-10 | ||
DE2463097C2 (de) * | 1973-08-21 | 1984-05-24 | International Standard Electric Corp., New York, N.Y. | Verfahren zur Herstellung von Glasfaser-Lichtleitern |
DE2402270C2 (de) * | 1974-01-18 | 1983-05-26 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur Innenbeschichtung eines Quarzrohres und Vorrichtung zur Durchführung des Verfahrens |
US4217027A (en) * | 1974-02-22 | 1980-08-12 | Bell Telephone Laboratories, Incorporated | Optical fiber fabrication and resulting product |
US4504299A (en) * | 1974-02-22 | 1985-03-12 | At&T Bell Laboratories | Optical fiber fabrication method |
US4909816A (en) * | 1974-02-22 | 1990-03-20 | American Telephone And Telegraph Company, At&T Bell Laboratories | Optical fiber fabrication and resulting product |
US3887262A (en) * | 1974-04-05 | 1975-06-03 | Environmental Res & Tech | Light equalizer and method of making same |
US4360250A (en) * | 1974-05-31 | 1982-11-23 | National Research Development Corp. | Optical waveguides |
US3932162A (en) * | 1974-06-21 | 1976-01-13 | Corning Glass Works | Method of making glass optical waveguide |
DE2434380A1 (de) * | 1974-07-17 | 1976-01-29 | Siemens Ag | Verfahren zum ziehen von lichtleitfasern |
GB1499991A (en) * | 1974-08-06 | 1978-02-01 | Standard Telephones Cables Ltd | Optical fibres |
DE2444100C3 (de) * | 1974-09-14 | 1979-04-12 | Philips Patentverwaltung Gmbh, 2000 Hamburg | Verfahren zur Herstellung von innenbeschichteten Glasrohren zum Ziehen von Lichtleitfasern |
US4145456A (en) * | 1974-09-14 | 1979-03-20 | Dieter Kuppers | Method of producing internally coated glass tubes for the drawing of fibre optic light conductors |
US4140505A (en) * | 1976-07-12 | 1979-02-20 | International Standard Electric Corporation | Method of manufacturing a limited mode optical fiber |
US3971645A (en) * | 1975-09-12 | 1976-07-27 | Bell Telephone Laboratories, Incorporated | Method of making compound-glass optical waveguides fabricated by a metal evaporation technique |
GB1570624A (en) * | 1975-12-11 | 1980-07-02 | Western Electric Co | Optical fibre transmission arrangements |
US3982916A (en) * | 1975-12-24 | 1976-09-28 | Bell Telephone Laboratories, Incorporated | Method for forming optical fiber preform |
GB1559097A (en) * | 1976-06-01 | 1980-01-16 | Standard Telephones Cables Ltd | Optical fibre manufacture |
CA1080562A (en) * | 1977-02-10 | 1980-07-01 | Frederick D. King | Method of and apparatus for manufacturing an optical fibre with plasma activated deposition in a tube |
JPS53135655A (en) * | 1977-04-29 | 1978-11-27 | Int Standard Electric Corp | Highly pure optical fiber with numerous open face |
US4173393A (en) * | 1977-06-06 | 1979-11-06 | Corning Glass Works | Optical waveguide with protective coating |
US4276072A (en) * | 1977-06-07 | 1981-06-30 | International Telephone And Telegraph Corporation | Optical fiber fabrication |
JPS543553A (en) | 1977-06-10 | 1979-01-11 | Nippon Telegr & Teleph Corp <Ntt> | Optical line |
CA1106710A (en) * | 1977-06-22 | 1981-08-11 | Michael G. Blankenship | Method of making optical devices |
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CA951555A (en) * | 1970-05-11 | 1974-07-23 | Robert D. Maurer | Glass optical waveguide |
-
1970
- 1970-05-11 US US00036267A patent/US3711262A/en not_active Expired - Lifetime
-
1971
- 1971-05-03 CA CA111959A patent/CA922109A/en not_active Expired
- 1971-05-05 GB GB1332671*[A patent/GB1322993A/en not_active Expired
- 1971-05-07 JP JP46030351A patent/JPS5123185B1/ja active Pending
- 1971-05-08 DE DE2122895A patent/DE2122895C3/de not_active Expired
- 1971-05-10 NL NL7106382.A patent/NL164014B/xx not_active Application Discontinuation
- 1971-05-10 BE BE766973A patent/BE766973A/xx not_active IP Right Cessation
- 1971-05-10 FR FR7116814A patent/FR2088486B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2122895A1 (de) | 1971-11-25 |
DE2122895B2 (de) | 1977-03-17 |
FR2088486A1 (de) | 1972-01-07 |
JPS5123185B1 (de) | 1976-07-15 |
GB1322993A (en) | 1973-07-11 |
FR2088486B1 (de) | 1976-03-19 |
US3711262A (en) | 1973-01-16 |
NL7106382A (de) | 1971-11-15 |
BE766973A (fr) | 1971-11-10 |
NL164014B (nl) | 1980-06-16 |
CA922109A (en) | 1973-03-06 |
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