NO811851L - Fremgangsmaate og apparat for fremstilling av en optisk boelgeleder forloeper - Google Patents
Fremgangsmaate og apparat for fremstilling av en optisk boelgeleder forloeperInfo
- Publication number
- NO811851L NO811851L NO811851A NO811851A NO811851L NO 811851 L NO811851 L NO 811851L NO 811851 A NO811851 A NO 811851A NO 811851 A NO811851 A NO 811851A NO 811851 L NO811851 L NO 811851L
- Authority
- NO
- Norway
- Prior art keywords
- coating
- starting element
- preform
- powdery material
- optical
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 35
- 230000003287 optical effect Effects 0.000 title abstract description 63
- 238000004519 manufacturing process Methods 0.000 title description 13
- 230000004308 accommodation Effects 0.000 title 1
- 238000000576 coating method Methods 0.000 claims abstract description 52
- 239000011248 coating agent Substances 0.000 claims abstract description 51
- 238000011437 continuous method Methods 0.000 claims abstract description 11
- 239000000463 material Substances 0.000 claims description 45
- 238000010438 heat treatment Methods 0.000 claims description 19
- 230000015572 biosynthetic process Effects 0.000 claims description 17
- 239000012254 powdered material Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 abstract description 12
- 239000011236 particulate material Substances 0.000 abstract description 9
- 239000011162 core material Substances 0.000 description 34
- 239000011521 glass Substances 0.000 description 32
- 238000000151 deposition Methods 0.000 description 25
- 239000004071 soot Substances 0.000 description 25
- 230000008021 deposition Effects 0.000 description 24
- 239000002245 particle Substances 0.000 description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 14
- 238000007596 consolidation process Methods 0.000 description 12
- 239000000835 fiber Substances 0.000 description 12
- 239000007787 solid Substances 0.000 description 12
- 239000007858 starting material Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 230000003647 oxidation Effects 0.000 description 10
- 238000007254 oxidation reaction Methods 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 8
- 239000013307 optical fiber Substances 0.000 description 8
- 239000012808 vapor phase Substances 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 230000007062 hydrolysis Effects 0.000 description 6
- 238000006460 hydrolysis reaction Methods 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 235000012239 silicon dioxide Nutrition 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 239000005350 fused silica glass Substances 0.000 description 5
- 238000005498 polishing Methods 0.000 description 5
- 239000010453 quartz Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000001311 chemical methods and process Methods 0.000 description 3
- 238000005229 chemical vapour deposition Methods 0.000 description 3
- 238000011109 contamination Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 229910044991 metal oxide Inorganic materials 0.000 description 3
- 150000004706 metal oxides Chemical class 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000376 reactant Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910003910 SiCl4 Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000000149 argon plasma sintering Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000007524 flame polishing Methods 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium dioxide Chemical compound O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 238000009499 grossing Methods 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910052863 mullite Inorganic materials 0.000 description 2
- 239000005304 optical glass Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 239000006223 plastic coating Substances 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- FDNAPBUWERUEDA-UHFFFAOYSA-N silicon tetrachloride Chemical compound Cl[Si](Cl)(Cl)Cl FDNAPBUWERUEDA-UHFFFAOYSA-N 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000004031 devitrification Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000012681 fiber drawing Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000156 glass melt Substances 0.000 description 1
- 239000002241 glass-ceramic Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- -1 hydroxyl ions Chemical class 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910000953 kanthal Inorganic materials 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011214 refractory ceramic Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000005019 vapor deposition process Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001928 zirconium oxide Inorganic materials 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D23/00—Other rotary non-positive-displacement pumps
- F04D23/008—Regenerative pumps
-
- 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]
- C03B37/01486—Means for supporting, rotating or translating the preforms being formed, e.g. lathes
-
- 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
- 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]
- C03B37/01486—Means for supporting, rotating or translating the preforms being formed, e.g. lathes
- C03B37/01493—Deposition substrates, e.g. targets, mandrels, start rods or tubes
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2205/00—Fibre drawing or extruding details
- C03B2205/30—Means for continuous drawing from a preform
-
- 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
- C03B2207/50—Multiple burner arrangements
- C03B2207/54—Multiple burner arrangements combined with means for heating the deposit, e.g. non-deposition burner
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture, Treatment Of Glass Fibers (AREA)
- Optical Integrated Circuits (AREA)
- Exchange Systems With Centralized Control (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
- Glass Melting And Manufacturing (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/155,422 US4310339A (en) | 1980-06-02 | 1980-06-02 | Method and apparatus for forming an optical waveguide preform having a continuously removable starting member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO811851L true NO811851L (no) | 1981-12-03 |
Family
ID=22555362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO811851A NO811851L (no) | 1980-06-02 | 1981-06-01 | Fremgangsmaate og apparat for fremstilling av en optisk boelgeleder forloeper |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US4310339A (es) |
| EP (1) | EP0041397B1 (es) |
| JP (1) | JPS5717442A (es) |
| KR (1) | KR830002158B1 (es) |
| AT (1) | ATE13513T1 (es) |
| AU (1) | AU543529B2 (es) |
| BR (1) | BR8103452A (es) |
| CA (1) | CA1170924A (es) |
| DE (1) | DE3170692D1 (es) |
| DK (1) | DK239981A (es) |
| ES (1) | ES8303717A1 (es) |
| FI (1) | FI811681L (es) |
| IL (1) | IL63004A0 (es) |
| IN (1) | IN154623B (es) |
| NO (1) | NO811851L (es) |
Families Citing this family (41)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2487811B1 (fr) * | 1980-07-31 | 1985-07-26 | France Etat | Procede et installation de fabrication de fibres optiques en continu |
| US4395270A (en) * | 1981-04-13 | 1983-07-26 | Corning Glass Works | Method of fabricating a polarization retaining single-mode optical waveguide |
| US4378985A (en) * | 1981-06-04 | 1983-04-05 | Corning Glass Works | Method and apparatus for forming an optical waveguide fiber |
| US4388094A (en) * | 1981-12-21 | 1983-06-14 | Corning Glass Works | Method and apparatus for producing tubular glass article |
| DE3206180A1 (de) * | 1982-02-20 | 1983-08-25 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zur herstellung einer vorform, aus der optische fasern ziehbar sind |
| GB2117754B (en) * | 1982-04-07 | 1985-07-24 | Ass Elect Ind | Continuous process for manufacture of optical fibre waveguides |
| CA1187291A (en) * | 1982-07-26 | 1985-05-21 | George E. Berkey | Method of making glass optical fiber |
| CA1218270A (en) * | 1982-07-26 | 1987-02-24 | Herman M. Presby | Method of fabricating optical fiber preforms |
| US4639079A (en) * | 1982-09-29 | 1987-01-27 | Corning Glass Works | Optical fiber preform and method |
| US4568370A (en) * | 1982-09-29 | 1986-02-04 | Corning Glass Works | Optical fiber preform and method |
| JPS6046940A (ja) * | 1983-08-22 | 1985-03-14 | Furukawa Electric Co Ltd:The | 光学系ガラス母材の製造方法とその装置 |
| US4578097A (en) * | 1983-09-26 | 1986-03-25 | Corning Glass Works | Method of forming a polarization preserving optical waveguide |
| JPS60191028A (ja) * | 1984-03-07 | 1985-09-28 | Sumitomo Electric Ind Ltd | 高純度ガラス体の製造方法 |
| JPS6126532A (ja) * | 1984-07-13 | 1986-02-05 | Sumitomo Electric Ind Ltd | 光フアイバ−用母材の製造方法 |
| FR2589461B1 (fr) * | 1985-10-31 | 1992-07-24 | Fibres Optiques Ind | Procede de fabrication d'elements etires a base de silice et elements obtenus |
| CA1295519C (en) * | 1986-02-27 | 1992-02-11 | Corning Glass Works | Conveyor deposition system |
| KR900003449B1 (ko) * | 1986-06-11 | 1990-05-19 | 스미도모덴기고오교오 가부시기가이샤 | 분산 시프트싱글모우드 광파이버 및 그 제조방법 |
| EP0257587B1 (en) * | 1986-08-29 | 1990-10-31 | AT&T Corp. | Methods of soot overcladding an optical preform |
| US4886538A (en) * | 1987-07-28 | 1989-12-12 | Polaroid Corporation | Process for tapering waveguides |
| US5030217A (en) * | 1988-04-14 | 1991-07-09 | Heraeus Lasersonics, Inc. | Medical laser probe and method of delivering CO2 radiation |
| US4911712A (en) * | 1988-04-14 | 1990-03-27 | Heraeus Lasersonics, Inc. | Medical laser probe |
| FR2726547B1 (fr) * | 1994-11-08 | 1997-01-03 | Alcatel Fibres Optiques | Dispositif de soutien d'une preforme, installation de fabrication ou de recharge d'une preforme, pourvue d'un tel dispositif, procedes mis en oeuvre dans une telle installation, preforme realisee selon de tels procedes |
| KR100288739B1 (ko) * | 1997-01-20 | 2001-05-02 | 윤종용 | 광섬유모재제조방법 |
| US6396966B1 (en) * | 1997-02-09 | 2002-05-28 | Nanoptics, Inc. | Glass structures for nanodelivery and nanosensing |
| CN1360561A (zh) * | 1999-07-08 | 2002-07-24 | 康宁股份有限公司 | 直接拉丝制造光纤的方法 |
| US7574875B2 (en) * | 1999-09-29 | 2009-08-18 | Fibre Ottiche Sud - F.O.S. S.P.A. | Method for vapour deposition on an elongated substrate |
| AU7421600A (en) * | 1999-09-29 | 2001-04-30 | Fibre Ottiche Sud F.O.S. S.P.A. | Device and method for vapour deposition on an elongated substrate |
| ES2625070T3 (es) | 1999-12-29 | 2017-07-18 | Prysmian S.P.A. | Procedimiento de producción de una barra de núcleo para ser utilizado en un proceso de producción de una preforma final |
| AU2002227157A1 (en) * | 2000-12-14 | 2002-06-24 | Corning Incorporated | Method and apparatus for continuously manufacturing optical preform and fiber |
| WO2002098808A1 (en) * | 2001-05-31 | 2002-12-12 | Corning Incorporated | Method of low pmd optical fiber manufacture |
| JP2004536764A (ja) * | 2001-07-31 | 2004-12-09 | コーニング・インコーポレーテッド | 低偏波モード分散光ファイバ製造方法 |
| JP2003226543A (ja) * | 2002-02-01 | 2003-08-12 | Fujikura Ltd | 光ファイバ母材の製造方法およびこれを用いた光ファイバ母材製造用バーナ装置 |
| KR100693272B1 (ko) * | 2002-09-27 | 2007-03-09 | 엘에스전선 주식회사 | 광섬유 모재 제조장치 및 광섬유 모재 제조용 보조 토치의가열온도 조절방법 |
| US20080053155A1 (en) * | 2006-08-31 | 2008-03-06 | Sanket Shah | Optical fiber preform having large size soot porous body and its method of preparation |
| JP5213116B2 (ja) * | 2008-09-05 | 2013-06-19 | 信越化学工業株式会社 | 光ファイバ用プリフォームの製造方法 |
| JP5398026B2 (ja) * | 2011-03-02 | 2014-01-29 | 信越化学工業株式会社 | ガラス母材の延伸方法及び装置 |
| DE102011118875A1 (de) * | 2011-11-19 | 2013-05-23 | Advanced Fiber Tools Gmbh | Vorrichtung zur medizinischen Behandlung, insbesondere eines Gewebes, mittels Laserlicht |
| JP6006185B2 (ja) * | 2012-09-24 | 2016-10-12 | 信越化学工業株式会社 | 光ファイバ用多孔質ガラス堆積体の製造方法 |
| US10702854B2 (en) | 2013-05-13 | 2020-07-07 | Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences | Oxygen-free direct conversion of methane and catalysts therefor |
| US9932280B2 (en) * | 2013-05-13 | 2018-04-03 | Dalian Institute Of Chemical Physics, Chinese Academy Of Sciences | Synthesis of olefins from oxygen-free direct conversion of methane and catalysts thereof |
| CN104148101B (zh) | 2013-05-13 | 2016-12-28 | 中国科学院大连化学物理研究所 | 一种甲烷无氧直接制烯烃的方法及其催化剂 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3620704A (en) * | 1969-12-18 | 1971-11-16 | Texas Instruments Inc | Method and apparatus for forming and drawing fused metal-oxide tubes |
| US3652248A (en) * | 1970-06-09 | 1972-03-28 | Edward J Mellen Jr | Process for redrawing silica glass rods |
| US3933454A (en) * | 1974-04-22 | 1976-01-20 | Corning Glass Works | Method of making optical waveguides |
| JPS52121341A (en) * | 1976-04-06 | 1977-10-12 | Nippon Telegr & Teleph Corp <Ntt> | Production of optical fiber base materials and production apparatus fo r the same |
| US4102663A (en) * | 1976-07-09 | 1978-07-25 | Lothar Jung | Method for manufacturing hollow and solid ingots |
| US4198223A (en) * | 1977-05-17 | 1980-04-15 | International Telephone And Telegraph Corporation | Continuous fiber fabrication process |
| JPS5927728B2 (ja) * | 1977-08-11 | 1984-07-07 | 日本電信電話株式会社 | 煤状ガラスロッドの製造方法 |
| US4204850A (en) * | 1977-08-26 | 1980-05-27 | Corning Glass Works | Carbon coating for a starting member used in producing optical waveguide |
| IT1091498B (it) * | 1977-11-25 | 1985-07-06 | Cselt Centro Studi Lab Telecom | Procedimento ed apparecchiatura per la produzione continua di fibre ottiche |
| US4243298A (en) * | 1978-10-06 | 1981-01-06 | International Telephone And Telegraph Corporation | High-strength optical preforms and fibers with thin, high-compression outer layers |
| US4230472A (en) * | 1979-02-22 | 1980-10-28 | Corning Glass Works | Method of forming a substantially continuous optical waveguide |
-
1980
- 1980-06-02 US US06/155,422 patent/US4310339A/en not_active Expired - Lifetime
-
1981
- 1981-05-29 CA CA000378667A patent/CA1170924A/en not_active Expired
- 1981-06-01 NO NO811851A patent/NO811851L/no unknown
- 1981-06-01 JP JP8424781A patent/JPS5717442A/ja active Pending
- 1981-06-01 FI FI811681A patent/FI811681L/fi not_active Application Discontinuation
- 1981-06-01 AU AU71234/81A patent/AU543529B2/en not_active Ceased
- 1981-06-01 ES ES502666A patent/ES8303717A1/es not_active Expired
- 1981-06-01 IN IN589/CAL/81A patent/IN154623B/en unknown
- 1981-06-01 DK DK239981A patent/DK239981A/da not_active Application Discontinuation
- 1981-06-01 IL IL63004A patent/IL63004A0/xx unknown
- 1981-06-01 BR BR8103452A patent/BR8103452A/pt unknown
- 1981-06-02 KR KR1019810001975A patent/KR830002158B1/ko active
- 1981-06-02 EP EP81302436A patent/EP0041397B1/en not_active Expired
- 1981-06-02 AT AT81302436T patent/ATE13513T1/de not_active IP Right Cessation
- 1981-06-02 DE DE8181302436T patent/DE3170692D1/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK239981A (da) | 1981-12-03 |
| ES502666A0 (es) | 1983-02-01 |
| KR830002158B1 (ko) | 1983-10-17 |
| ES8303717A1 (es) | 1983-02-01 |
| BR8103452A (pt) | 1982-02-24 |
| IN154623B (es) | 1984-11-24 |
| FI811681L (fi) | 1981-12-03 |
| IL63004A0 (en) | 1981-09-13 |
| ATE13513T1 (de) | 1985-06-15 |
| AU543529B2 (en) | 1985-04-26 |
| KR830006126A (ko) | 1983-09-17 |
| EP0041397A1 (en) | 1981-12-09 |
| JPS5717442A (en) | 1982-01-29 |
| US4310339A (en) | 1982-01-12 |
| EP0041397B1 (en) | 1985-05-29 |
| AU7123481A (en) | 1981-12-10 |
| DE3170692D1 (en) | 1985-07-04 |
| CA1170924A (en) | 1984-07-17 |
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