DE2660697C2 - Verfahren zur Herstellung eines Glas-Rohlings - Google Patents
Verfahren zur Herstellung eines Glas-RohlingsInfo
- Publication number
- DE2660697C2 DE2660697C2 DE2660697A DE2660697A DE2660697C2 DE 2660697 C2 DE2660697 C2 DE 2660697C2 DE 2660697 A DE2660697 A DE 2660697A DE 2660697 A DE2660697 A DE 2660697A DE 2660697 C2 DE2660697 C2 DE 2660697C2
- Authority
- DE
- Germany
- Prior art keywords
- glass
- core
- blank
- oxygen
- carrier
- 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
- 239000011521 glass Substances 0.000 title claims description 25
- 238000000034 method Methods 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 238000007596 consolidation process Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 239000005373 porous glass Substances 0.000 claims 1
- 239000011162 core material Substances 0.000 description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 14
- 239000001301 oxygen Substances 0.000 description 14
- 229910052760 oxygen Inorganic materials 0.000 description 14
- 239000002245 particle Substances 0.000 description 11
- 238000005253 cladding Methods 0.000 description 10
- 239000000835 fiber Substances 0.000 description 8
- 229910005793 GeO 2 Inorganic materials 0.000 description 7
- 229910004298 SiO 2 Inorganic materials 0.000 description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 7
- 229910004028 SiCU Inorganic materials 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- RLOWWWKZYUNIDI-UHFFFAOYSA-N phosphinic chloride Chemical compound ClP=O RLOWWWKZYUNIDI-UHFFFAOYSA-N 0.000 description 5
- 238000001556 precipitation Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 229910003902 SiCl 4 Inorganic materials 0.000 description 3
- 229910003460 diamond Inorganic materials 0.000 description 3
- 239000010432 diamond Substances 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 230000007062 hydrolysis Effects 0.000 description 2
- 238000006460 hydrolysis reaction Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000005388 borosilicate glass Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011049 pearl Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/048—Silica-free oxide glass compositions
-
- 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]
-
- 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
-
- 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
-
- 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
- C03C13/046—Multicomponent 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
- C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
- C03B2201/28—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with phosphorus
-
- 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
- C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
-
- 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
-
- 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
- C03B2203/225—Matching coefficients of thermal expansion [CTE] of glass layers
-
- 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
- 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
- C03B2203/26—Parabolic or graded index [GRIN] core profile
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2207/00—Glass deposition burners
- C03B2207/46—Comprising performance enhancing means, e.g. electrostatic charge or built-in heater
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Glass Compositions (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
Description
50% GeO2, Mantel 50% SiO2,50% B2O3. NA 0,77, also
höher als bei 100% GeO2 oder P2O5 im Kern.
einen 0,63 cm dicken Trägerstab aufgebracht, unter
Verwendung von POCl3 bei 350C, GeCU bei 320C, SiCl4
bei 32° C, BCl3 bei 25° C. Für die erste Schicht wurden
POCI3, GeCl4 und SiCl4 mit Durchsätzen von jeweils 3,1, 65
0,3 und 1 l/Min, durchperlt und die Dämpfe in die Flamme geleitet. Nach Erreichen einer Schichtdicke von
3,8 cm wurde der Gasfluß durch POCI3 und GeCl4 unter-
Claims (1)
- Patentanspruch:Verfahren zur Herstellung eines Glas-Rohlings, aus weichem optische Wellenleiter gezogen werden, s bei dem auf einen länglichen Träger wenigstens zwei aufeinanderfolgende Oberzüge aus partikeligem Glasmaterial aufgebracht werden, um eine poröse Glas-Vorform zu bilden, wobei der Brechungsindex des ersten Oberzuges aus partikeligem Glasmaterial größer als der des zweiten Oberzuges ist, wonach der Dorn entfernt und die poröse Vorform konsolidiert wird, um einen länglichen Rohling aus nichtpartikeligem Glasmaterial zu bilden, dadurch gekennzeichnet, daß der Träger vor der Konsolidierung der porösen Vorform durch Herausziehen aus der porösen Vorform entfernt wird.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/611,226 US4339173A (en) | 1975-09-08 | 1975-09-08 | Optical waveguide containing P2 O5 and GeO2 |
Publications (1)
Publication Number | Publication Date |
---|---|
DE2660697C2 true DE2660697C2 (de) | 1986-05-28 |
Family
ID=24448148
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2632689A Expired DE2632689C2 (de) | 1975-09-08 | 1976-07-21 | Optischer Wellenleiter |
DE2660697A Expired DE2660697C2 (de) | 1975-09-08 | 1976-07-21 | Verfahren zur Herstellung eines Glas-Rohlings |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2632689A Expired DE2632689C2 (de) | 1975-09-08 | 1976-07-21 | Optischer Wellenleiter |
Country Status (8)
Country | Link |
---|---|
US (1) | US4339173A (de) |
JP (2) | JPS5233546A (de) |
AT (1) | AT346103B (de) |
CA (1) | CA1268971A (de) |
DE (2) | DE2632689C2 (de) |
FR (1) | FR2323161A1 (de) |
GB (1) | GB1521826A (de) |
HK (1) | HK56581A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3735532A1 (de) * | 1987-10-21 | 1989-05-03 | Rheydt Kabelwerk Ag | Verfahren zum herstellen einer vorform fuer lichtwellenleiter |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4360250A (en) * | 1974-05-31 | 1982-11-23 | National Research Development Corp. | Optical waveguides |
DE2546162B1 (de) * | 1975-10-15 | 1976-09-23 | Jenaer Glaswerk Schott & Gen | Lichtleitfaser mit Brechungsindexgradient zur Nachrichtenuebertragung |
DE2614183C3 (de) * | 1976-04-02 | 1981-11-12 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | Lichtleitfaser mit Gradientenprofil des Brechungsindex, niedrigen Übertragungsverlusten, hoher Übertragungskapazität und großer Aperatur bei Verwnedung von GeO↓2↓ |
CA1106710A (en) * | 1977-06-22 | 1981-08-11 | Michael G. Blankenship | Method of making optical devices |
CA1117334A (en) * | 1977-09-29 | 1982-02-02 | Suresh T. Gulati | Gradient index optical waveguide |
NL193330C (nl) * | 1978-01-13 | 1999-06-02 | Western Electric Co | Optische golfleider en werkwijze voor het vervaardigen daarvan. |
JPS5521059A (en) * | 1978-07-31 | 1980-02-14 | Nippon Telegr & Teleph Corp <Ntt> | Optical fiber |
US4229070A (en) * | 1978-07-31 | 1980-10-21 | Corning Glass Works | High bandwidth optical waveguide having B2 O3 free core and method of fabrication |
JPS5611406A (en) * | 1979-07-10 | 1981-02-04 | Sumitomo Electric Ind Ltd | Optical fiber and its manufacture |
JPS5630102A (en) * | 1979-08-20 | 1981-03-26 | Fujitsu Ltd | Optical transmission wire |
DE2942318A1 (de) * | 1979-10-19 | 1981-04-30 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Optisches verzweigungsglied und verfahren zur herstellung eines optischen verzweigungsglieds |
US4344670A (en) | 1980-05-01 | 1982-08-17 | Corning Glass Works | Optical waveguide soot preform with reduced inner layer stress and method of making |
US4413882A (en) * | 1980-07-03 | 1983-11-08 | Corning Glass Works | Low viscosity core glass optical fiber |
US4490737A (en) * | 1981-03-16 | 1984-12-25 | Fairchild Camera & Instrument Corp. | Smooth glass insulating film over interconnects on an integrated circuit |
AU531893B2 (en) * | 1981-08-19 | 1983-09-08 | Hitachi Cable Ltd. | d |
JPS58125624A (ja) * | 1982-01-20 | 1983-07-26 | Nippon Telegr & Teleph Corp <Ntt> | 光フアイバ用母材の製造方法 |
JPS61188103U (de) * | 1986-04-17 | 1986-11-22 | ||
GB8804523D0 (en) * | 1988-02-26 | 1988-03-30 | Cogent Ltd | Hollow glass waveguides |
DE3820217A1 (de) * | 1988-06-14 | 1989-12-21 | Rheydt Kabelwerk Ag | Lichtwellenleiter, insbesondere einmodenfaser |
DE3842805A1 (de) * | 1988-12-20 | 1990-06-21 | Rheydt Kabelwerk Ag | Lichtwellenleiter |
DE3842804A1 (de) * | 1988-12-20 | 1990-06-21 | Rheydt Kabelwerk Ag | Lichtwellenleiter |
EP0514409A1 (de) * | 1990-02-06 | 1992-11-25 | The University Of Southampton | Optische faserlichtquelle |
JP2959877B2 (ja) * | 1991-06-24 | 1999-10-06 | 古河電気工業株式会社 | 光ファイバの製造方法 |
US5233621A (en) * | 1991-06-27 | 1993-08-03 | Intellectual Property Development Associates Of Connecticut, Inc. | Second harmonic generation and self frequency doubling laser materials comprised of bulk germanosilicate and aluminosilicate glasses |
US5253258A (en) * | 1991-10-17 | 1993-10-12 | Intellectual Property Development Associates Of Connecticut, Inc. | Optically encoded phase matched second harmonic generation device and self frequency doubling laser material using semiconductor microcrystallite doped glasses |
US5235662A (en) * | 1992-01-02 | 1993-08-10 | Eastman Kodak Company | Method to reduce light propagation losses in optical glasses and optical waveguide fabricated by same |
GB2273389B (en) * | 1992-12-14 | 1996-07-17 | Pirelli Cavi Spa | Rare earth doped optical fibre amplifiers |
AUPN526895A0 (en) * | 1995-09-07 | 1995-09-28 | Unisearch Limited | Improvements in control of refractive index |
US6105396A (en) * | 1998-07-14 | 2000-08-22 | Lucent Technologies Inc. | Method of making a large MCVD single mode fiber preform by varying internal pressure to control preform straightness |
KR100768175B1 (ko) * | 2001-02-07 | 2007-10-17 | 삼성에스디아이 주식회사 | 광학적 전기적 특성을 지닌 기능성 박막 |
US7142756B2 (en) * | 2001-04-12 | 2006-11-28 | Omniguide, Inc. | High index-contrast fiber waveguides and applications |
US20020186942A1 (en) * | 2001-05-01 | 2002-12-12 | Bubnov Mikhail M. | Low-loss highly phosphorus-doped fibers for Raman amplification |
US6615615B2 (en) * | 2001-06-29 | 2003-09-09 | Lightwave Microsystems Corporation | GePSG core for a planar lightwave circuit |
US20030200771A1 (en) * | 2002-04-30 | 2003-10-30 | Burke Gerald E. | Method of manufacturing phosphosilicate optical fibers and optical fibers formed therefrom |
US20040141702A1 (en) * | 2002-11-22 | 2004-07-22 | Vladimir Fuflyigin | Dielectric waveguide and method of making the same |
EP1435533A1 (de) * | 2002-12-30 | 2004-07-07 | STMicroelectronics S.r.l. | Wellenleiter und Verfahren zur Herstellung eines Wellenleiters |
US7421174B2 (en) * | 2006-08-28 | 2008-09-02 | Furakawa Electric North America; Inc. | Multi-wavelength, multimode optical fibers |
US8111961B2 (en) * | 2008-02-26 | 2012-02-07 | Ofs Fitel, Llc | Accelerated aging of phosphorus-doped optical fibers |
US8445059B2 (en) * | 2008-02-26 | 2013-05-21 | Ofs Fitel, Llc | Accelerated aging of phosphorus-doped optical fibers |
US8526773B2 (en) * | 2010-04-30 | 2013-09-03 | Corning Incorporated | Optical fiber with differential birefringence mechanism |
US9658394B2 (en) * | 2014-06-24 | 2017-05-23 | Corning Incorporated | Low attenuation fiber with viscosity matched core and inner clad |
EP3808856A4 (de) | 2018-06-15 | 2022-03-09 | Public University Corporation Yokohama City University | Undifferenziertes zelldetektionsverfahren |
CN114651069A (zh) | 2019-11-15 | 2022-06-21 | 公立大学法人横滨市立大学 | 未分化细胞检测法 |
CN114634313B (zh) * | 2020-12-15 | 2023-11-28 | 北京玻璃研究院有限公司 | 一种温度匹配光纤及其制备方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737292A (en) * | 1972-01-03 | 1973-06-05 | Corning Glass Works | Method of forming optical waveguide fibers |
US3826560A (en) * | 1972-03-30 | 1974-07-30 | Corning Glass Works | Method of forming a light focusing fiber waveguide |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1000579B (it) * | 1973-01-04 | 1976-04-10 | Corning Glass Works | Vetro del tipo ad ossidi fusi |
US3938974A (en) * | 1973-04-27 | 1976-02-17 | Macedo Pedro B | Method of producing optical wave guide fibers |
DE2434717C2 (de) * | 1973-08-21 | 1989-05-18 | International Standard Electric Corp., 10022 New York, N.Y. | Verfahren zur Herstellung eines Glasfaser-Lichtleiters |
CA1050833A (en) * | 1974-02-22 | 1979-03-20 | John B. Macchesney | Optical fiber fabrication involving homogeneous reaction within a moving hot zone |
US4360250A (en) * | 1974-05-31 | 1982-11-23 | National Research Development Corp. | Optical waveguides |
JPS643650A (en) * | 1987-06-26 | 1989-01-09 | Hitachi Ltd | Method for forming photosensitive resin film |
-
1975
- 1975-09-08 US US05/611,226 patent/US4339173A/en not_active Expired - Lifetime
-
1976
- 1976-03-25 CA CA000248769A patent/CA1268971A/en not_active Expired
- 1976-07-21 DE DE2632689A patent/DE2632689C2/de not_active Expired
- 1976-07-21 DE DE2660697A patent/DE2660697C2/de not_active Expired
- 1976-08-31 AT AT645876A patent/AT346103B/de not_active IP Right Cessation
- 1976-08-31 GB GB35968/76A patent/GB1521826A/en not_active Expired
- 1976-09-06 JP JP51106602A patent/JPS5233546A/ja active Granted
- 1976-09-07 FR FR7626878A patent/FR2323161A1/fr active Granted
-
1981
- 1981-11-19 HK HK565/81A patent/HK56581A/xx unknown
-
1982
- 1982-01-26 JP JP57010808A patent/JPS57170836A/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3737292A (en) * | 1972-01-03 | 1973-06-05 | Corning Glass Works | Method of forming optical waveguide fibers |
US3826560A (en) * | 1972-03-30 | 1974-07-30 | Corning Glass Works | Method of forming a light focusing fiber waveguide |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3735532A1 (de) * | 1987-10-21 | 1989-05-03 | Rheydt Kabelwerk Ag | Verfahren zum herstellen einer vorform fuer lichtwellenleiter |
Also Published As
Publication number | Publication date |
---|---|
JPS57170836A (en) | 1982-10-21 |
US4339173A (en) | 1982-07-13 |
FR2323161A1 (fr) | 1977-04-01 |
JPS6124348B2 (de) | 1986-06-10 |
GB1521826A (en) | 1978-08-16 |
DE2632689A1 (de) | 1977-03-17 |
ATA645876A (de) | 1978-02-15 |
HK56581A (en) | 1981-11-27 |
FR2323161B1 (de) | 1982-12-10 |
CA1268971A (en) | 1990-05-15 |
DE2632689C2 (de) | 1986-05-22 |
JPS5233546A (en) | 1977-03-14 |
AT346103B (de) | 1978-10-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2660697C2 (de) | Verfahren zur Herstellung eines Glas-Rohlings | |
DE2906070C2 (de) | Verfahren zum Herstellen von optischen Wellenleitern | |
DE2463016C2 (de) | Verfahren zur Herstellung eines Glasfaser-Lichtleiters | |
DE19537379C2 (de) | Optische Faservorform, Verfahren zur Herstellung und Verwendung derselben | |
DE69017397T2 (de) | Verfahren zur Herstellung einer optischen Faser und nach diesem Verfahren hergestellte Faser. | |
DE60025823T2 (de) | Optische wellenleiterfaser mit niedrigem wasserpeak und verfahren zu ihrer herstellung | |
DE2930398C2 (de) | ||
DE69300600T2 (de) | Verfahren zum Dotieren von porösen Glasvorformen. | |
DE3887060T2 (de) | Verfahren zur Herstellung von Glasvorformen für optische Fasern. | |
DE2906071A1 (de) | Verfahren zum ziehen von faeden aus thermoplastischem material | |
DE2922794B2 (de) | Verfahren zur Herstellung von optischen Wellenleitern durch Dotieren einer rohrförmigen, offenporigen Vorform mit Gasen | |
DE2919080A1 (de) | Verfahren zum herstellen einer optischen faser | |
DE2364782B2 (de) | Optischer Wellenleiter aus Glas mit einem GeO2 enthaltenden Kernglas | |
DE2313203A1 (de) | Lichtfokussierende optische faser | |
DE2930399A1 (de) | Optische gradientenindex-faser grosser bandbreite und verfahren zu ihrer herstellung | |
DE2945804C2 (de) | Monomode-Lichtleitfaser | |
DE2300013B2 (de) | Verfahren zur Herstellung optischer Wellenleiter | |
DE3229432C2 (de) | ||
DE4236578A1 (de) | Verfahren und Vorrichtung zur Vorformherstellung für Quarzglas- Lichtwellenleiter | |
DE2358880B2 (de) | Lichtleitfaser aus erschmolzenem Siliziumdioxid unter Verwendung von Dotierungsmaterial sowie Verfahren zu ihrer Herstellung | |
DE3911745A1 (de) | Verfahren zur herstellung von glaskoerpern mit bereichen unterschiedlicher optischer brechung | |
DE69021709T2 (de) | Herstellung von dotierten optischen Fasern. | |
DE2730346C3 (de) | Verfahren zur Herstellung eines Vorformlings für optische Glasfasern | |
DE2122896A1 (de) | Optischer Wellenleiter | |
DE3132508C2 (de) |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AC | Divided out of |
Ref country code: DE Ref document number: 2632689 Format of ref document f/p: P |
|
Q172 | Divided out of (supplement): |
Ref country code: DE Ref document number: 2632689 |
|
8110 | Request for examination paragraph 44 | ||
8181 | Inventor (new situation) |
Free format text: AGGARWAL, ISHWAR DAYAL, HORSEHEADS, N.Y., US RANDALL, ERIC NIES, BATH, N.Y., US |
|
8181 | Inventor (new situation) |
Free format text: AGGARWAL, ISHWAR DAYAL, HORSEHEADS, N.Y., US RANDALL, ERIC NILS, BATH, N.Y., US |
|
AC | Divided out of |
Ref country code: DE Ref document number: 2632689 Format of ref document f/p: P |
|
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8331 | Complete revocation |