RU95117069A - Preparation of an optical waveguide and method of obtaining it - Google Patents

Preparation of an optical waveguide and method of obtaining it

Info

Publication number
RU95117069A
RU95117069A RU95117069/28A RU95117069A RU95117069A RU 95117069 A RU95117069 A RU 95117069A RU 95117069/28 A RU95117069/28 A RU 95117069/28A RU 95117069 A RU95117069 A RU 95117069A RU 95117069 A RU95117069 A RU 95117069A
Authority
RU
Russia
Prior art keywords
quartz tube
preform
optical waveguide
thermal conductivity
central axis
Prior art date
Application number
RU95117069/28A
Other languages
Russian (ru)
Other versions
RU2105733C1 (en
Inventor
Ох Сеунг-Хан
Дох Джюн-Хае
Канг Сун-Вунг
Original Assignee
Самсунг Электроникс Ко., Лтд.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from KR1019940025705A external-priority patent/KR0162604B1/en
Application filed by Самсунг Электроникс Ко., Лтд. filed Critical Самсунг Электроникс Ко., Лтд.
Application granted granted Critical
Publication of RU2105733C1 publication Critical patent/RU2105733C1/en
Publication of RU95117069A publication Critical patent/RU95117069A/en

Links

Claims (9)

1. Способ получения заготовки оптического волновода, при котором формируют первую кварцевую трубку, обладающую первой теплопроводностью, при этом первая кварцевая трубка используется как оболочка, осаждают слой сердцевины и слой оболочки внутри первой кварцевой трубки с образованием предварительной заготовки путем нагрева первой кварцевой трубки, отличающийся тем, что формируют вторую кварцевую трубку, обладающую второй теплопроводностью меньшей чем первая теплопроводность, и затем формируют оболочку из второй кварцевой трубки для предварительной заготовки путем нагрева для получения заготовки оптического волновода.1. A method of producing a blank of an optical waveguide, in which a first quartz tube having a first heat conductivity is formed, wherein the first quartz tube is used as a shell, a core layer and a shell layer are deposited inside the first quartz tube to form a preform by heating the first quartz tube, characterized in that form a second quartz tube having a second thermal conductivity less than the first thermal conductivity, and then form a shell of a second quartz tube for redvaritelnoy preform by heating the preform to obtain an optical waveguide. 2. Способ по п. 1, отличающийся тем, что вторая кварцевая трубка, скрепленная с заготовкой оптического волновода, имеет теплопроводность, которая может изменяться градиентно от внутренней окружности до внешней окружности второй кварцевой трубки, и включает по меньшей мере одну трубку. 2. The method according to p. 1, characterized in that the second quartz tube bonded to the workpiece of the optical waveguide has thermal conductivity, which can vary gradient from the inner circle to the outer circumference of the second quartz tube, and includes at least one tube. 3. Способ по п. 2, отличающийся тем, что вторую кварцевую трубку изготавливают методом формирования нескольких надоболочек. 3. The method according to p. 2, characterized in that the second quartz tube is made by the method of forming several shells. 4. Способ по пп. 1 - 3, отличающийся тем, что первую кварцевую трубку изготавливают из синтетической кварцевой трубки. 4. The method according to PP. 1-3, characterized in that the first quartz tube is made of a synthetic quartz tube. 5. Способ по п. 4, отличающийся тем, что вторую кварцевую трубку изготавливают из прозрачной кварцевой трубки. 5. The method according to p. 4, characterized in that the second quartz tube is made of a transparent quartz tube. 6. Способ по п. 4, отличающийся тем, что содержание иона гидроксила в синтетической кварцевой трубке составляет по меньшей мере менее 5 ч/млн. 6. The method according to p. 4, characterized in that the content of hydroxyl ion in the synthetic quartz tube is at least less than 5 ppm. 7. Заготовка оптического волновода, содержащая сердцевину и окружающую ее оболочку, отличающаяся тем, что оболочка вблизи центральной оси заготовки оптического волновода имеет наиболее высокую теплопроводность, причем теплопроводность градиентно уменьшается в направлении от центральной оси к внешней окружности заготовки. 7. An optical waveguide preform comprising a core and a sheath surrounding it, characterized in that the sheath near the central axis of the optical waveguide preform has the highest thermal conductivity, the thermal conductivity decreasing gradientwise from the central axis to the outer circumference of the preform. 8. Заготовка по п. 7, отличающаяся тем, что оболочка вблизи центральной оси заготовки оптического волновода обладает структурной вязкостью, при этом вязкость градиентно возрастает с увеличением расстояния от центральной оси. 8. The preform according to claim 7, characterized in that the sheath near the central axis of the preform of the optical waveguide has structural viscosity, while the viscosity increases gradually with increasing distance from the central axis. 9. Заготовка по п. 7, отличающаяся тем, что заготовка оптического волновода является одномодовой. 9. The preform according to claim 7, characterized in that the preform of the optical waveguide is single-mode.
RU95117069A 1994-10-07 1995-10-06 Blank of fibre-optic light conduit and method of its production RU2105733C1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1019940025705A KR0162604B1 (en) 1994-10-07 1994-10-07 Optical fiber preform making method
KR25705/94 1994-10-07
KR25705/1994 1994-10-07

Publications (2)

Publication Number Publication Date
RU2105733C1 RU2105733C1 (en) 1998-02-27
RU95117069A true RU95117069A (en) 1998-04-10

Family

ID=19394639

Family Applications (1)

Application Number Title Priority Date Filing Date
RU95117069A RU2105733C1 (en) 1994-10-07 1995-10-06 Blank of fibre-optic light conduit and method of its production

Country Status (8)

Country Link
US (2) US5702497A (en)
JP (1) JP2971373B2 (en)
KR (1) KR0162604B1 (en)
CN (1) CN1101553C (en)
DE (1) DE19537379C2 (en)
FR (1) FR2725441B1 (en)
GB (1) GB2293822B (en)
RU (1) RU2105733C1 (en)

Families Citing this family (58)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5822488A (en) 1995-10-04 1998-10-13 Sumitomo Electric Industries, Inc. Single-mode optical fiber with plural core portions
JP3622816B2 (en) * 1996-12-27 2005-02-23 富士通株式会社 Optical amplification fiber and manufacturing method thereof
EP0884614A1 (en) * 1997-06-13 1998-12-16 Sumitomo Electric Industries, Ltd. Optical fiber
KR20010021886A (en) * 1997-07-15 2001-03-15 알프레드 엘. 미첼슨 Suppression of stimulated brillouin scattering in optical fiber
CA2247970A1 (en) * 1997-10-29 1999-04-29 Corning Incorporated Method of making segmented core optical waveguide preforms
AU753111B2 (en) * 1998-02-03 2002-10-10 Sumitomo Electric Industries, Ltd. Method of manufacturing optical fiber base material
FR2776997B1 (en) * 1998-04-06 2000-05-12 Alsthom Cge Alcatel DEVICE FOR MANUFACTURING AN OPTICAL FIBER PREFORM COMPRISING A RING FOR TRAPPING AND DIFFUSING LIGHT RADIATION
KR100322131B1 (en) 1999-01-28 2002-02-04 윤종용 Optical fiber preform having OH barrier and method of fabricating the same
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
DE19848083C2 (en) * 1998-10-19 2001-02-01 Fraunhofer Ges Forschung Process for the production of interference layer sequences, system of superimposed interference layer sequences as well as interference layer sequences
CN1247477C (en) * 1999-05-27 2006-03-29 住友电气工业株式会社 Production device and method for optical fiber
JP2001019464A (en) * 1999-07-05 2001-01-23 Sumitomo Electric Ind Ltd Device and method for drawing optical fiber
US6460378B1 (en) * 2000-02-29 2002-10-08 Xiaoyuan Dong Collapsing a multitube assembly and subsequent optical fiber drawing in the same furnace
US6553790B1 (en) * 2000-05-09 2003-04-29 Fitel Usa Corp. Process for fabricating optical fiber involving tuning of core diameter profile
AU773229B2 (en) * 2000-08-28 2004-05-20 Sumitomo Electric Industries, Ltd. Optical fiber and method of making the same
KR20020029529A (en) * 2000-10-13 2002-04-19 이계철 Structure of dispersion flattened fiber with high negative dispersion and method for manufacturing the dispersion flattened fiber
US6598429B1 (en) * 2000-11-17 2003-07-29 Beamtek, Inc. Method for fabricating gradient-index rods and rod arrays
US20020083740A1 (en) * 2000-12-29 2002-07-04 Pandelisev Kiril A. Process and apparatus for production of silica grain having desired properties and their fiber optic and semiconductor application
US7797966B2 (en) * 2000-12-29 2010-09-21 Single Crystal Technologies, Inc. Hot substrate deposition of fused silica
US20020083739A1 (en) * 2000-12-29 2002-07-04 Pandelisev Kiril A. Hot substrate deposition fiber optic preforms and preform components process and apparatus
JP3986842B2 (en) * 2001-07-26 2007-10-03 株式会社フジクラ Manufacturing method of optical fiber preform for non-zero dispersion shifted optical fiber
JP5291277B2 (en) * 2001-08-28 2013-09-18 アバゴ・テクノロジーズ・ジェネラル・アイピー（シンガポール）プライベート・リミテッド Columnar integrated circuit and method for manufacturing columnar integrated circuit
GB0201492D0 (en) * 2002-01-23 2002-03-13 Blazephotonics Ltd A method and apparatus relating to optical fibres
AU2003235180A1 (en) * 2002-04-16 2003-10-27 Sumitomo Electric Industries, Ltd. Optical fiber preform producing method, optical fiber producing method, and optical fiber
CN1229290C (en) * 2002-06-29 2005-11-30 Lg电线有限公司 Method for fabricating optical fiber preform without hydroxyl group in core
KR100492964B1 (en) * 2002-07-29 2005-06-07 삼성전자주식회사 Apparatus for drawing optical fiber and method for controlling optical fiber preform feeding speed
JP4093553B2 (en) * 2002-08-07 2008-06-04 信越化学工業株式会社 Optical fiber preform, manufacturing method thereof, and optical fiber obtained by drawing the same
FR2843746B1 (en) * 2002-08-22 2004-11-19 Cit Alcatel METHOD FOR MANUFACTURING MICROSTRUCTURED OPTICAL FIBER
NL1024015C2 (en) 2003-07-28 2005-02-01 Draka Fibre Technology Bv Multimode optical fiber provided with a refractive index profile, optical communication system using this and method for manufacturing such a fiber.
DE602004013238T2 (en) * 2003-09-09 2009-07-23 Fujikura Ltd. Multimode gradient fiber and manufacturing method therefor
US6947650B1 (en) 2004-05-06 2005-09-20 Luna Energy Llc Long wavelength, pure silica core single mode fiber and method of forming the same
JP4383377B2 (en) * 2005-03-22 2009-12-16 古河電気工業株式会社 Fabrication method of microstructured optical fiber
US20070292087A1 (en) * 2006-06-19 2007-12-20 Joe Denton Brown Apparatus and method for diffusing laser energy that fails to couple into small core fibers, and for reducing coupling to the cladding of the fiber
FR2922657B1 (en) 2007-10-23 2010-02-12 Draka Comteq France MULTIMODE FIBER.
FR2932932B1 (en) * 2008-06-23 2010-08-13 Draka Comteq France Sa MULTIPLEX WAVE LENGTH OPTIC SYSTEM WITH MULTIMODE OPTIC FIBERS
FR2933779B1 (en) * 2008-07-08 2010-08-27 Draka Comteq France MULTIMODE OPTIC FIBERS
FR2940839B1 (en) * 2009-01-08 2012-09-14 Draka Comteq France INDEX GRADIENT MULTIMODAL OPTICAL FIBER, METHODS FOR CHARACTERIZATION AND MANUFACTURE OF SUCH A FIBER
FR2946436B1 (en) 2009-06-05 2011-12-09 Draka Comteq France MULTIMODE OPTICAL FIBER WITH LARGE BANDWIDTH WITH AN OPTIMIZED HEAT-SLEEVE INTERFACE
CN101585658A (en) * 2009-06-23 2009-11-25 长飞光纤光缆有限公司 Optical fiber perform and manufacture method thereof
FR2949870B1 (en) * 2009-09-09 2011-12-16 Draka Compteq France MULTIMODE OPTICAL FIBER HAVING IMPROVED BENDING LOSSES
FR2953606B1 (en) * 2009-12-03 2012-04-27 Draka Comteq France MULTIMODE OPTICAL FIBER WITH BROAD BANDWIDTH AND LOW BENDBACK LOSSES
FR2953029B1 (en) * 2009-11-25 2011-11-18 Draka Comteq France MULTIMODE OPTICAL FIBER WITH LARGE BANDWIDTH WITH AN OPTIMIZED HEAT-SLEEVE INTERFACE
FR2957153B1 (en) * 2010-03-02 2012-08-10 Draka Comteq France MULTIMODE OPTICAL FIBER WITH BROAD BANDWIDTH AND LOW BENDBACK LOSSES
FR2953605B1 (en) * 2009-12-03 2011-12-16 Draka Comteq France MULTIMODE OPTICAL FIBER WITH BROAD BANDWIDTH AND LOW BENDBACK LOSSES
FR2953030B1 (en) * 2009-11-25 2011-11-18 Draka Comteq France MULTIMODE OPTICAL FIBER WITH LARGE BANDWIDTH WITH AN OPTIMIZED HEAT-SLEEVE INTERFACE
US9014525B2 (en) 2009-09-09 2015-04-21 Draka Comteq, B.V. Trench-assisted multimode optical fiber
FR2950156B1 (en) * 2009-09-17 2011-11-18 Draka Comteq France MULTIMODE OPTIC FIBER
FR2966256B1 (en) 2010-10-18 2012-11-16 Draka Comteq France MULTIMODE OPTICAL FIBER INSENSITIVE TO LOSSES BY
FR2971061B1 (en) 2011-01-31 2013-02-08 Draka Comteq France BROAD BANDWIDTH OPTICAL FIBER WITH LOW CURB LOSSES
DK2482106T5 (en) 2011-01-31 2014-09-22 Draka Comteq Bv Multi-mode fiber
EP2503368A1 (en) 2011-03-24 2012-09-26 Draka Comteq B.V. Multimode optical fiber with improved bend resistance
EP2506044A1 (en) 2011-03-29 2012-10-03 Draka Comteq B.V. Multimode optical fiber
EP2518546B1 (en) 2011-04-27 2018-06-20 Draka Comteq B.V. High-bandwidth, radiation-resistant multimode optical fiber
DK2541292T3 (en) 2011-07-01 2014-12-01 Draka Comteq Bv A multimode optical fiber
US9325151B1 (en) * 2015-03-27 2016-04-26 Ofs Fitel, Llc Systems and techniques for compensation for the thermo-optic effect in active optical fibers
PL419944A1 (en) 2016-12-22 2018-07-02 Instytut Technologii Materiałów Elektronicznych Method for producing active fibre optic cable and the active fibre optic cable
US11237323B2 (en) * 2017-02-28 2022-02-01 Corning Incorporated Methods and systems for controlling air flow through an annealing furnace during optical fiber production
CN110357410B (en) * 2019-06-12 2020-08-04 烽火通信科技股份有限公司 Optical fiber preform and method for manufacturing ultra-low attenuation optical fiber and optical fiber

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2302556A1 (en) * 1973-01-19 1974-07-25 Licentia Gmbh Optical glass fibre prodn. - from quartz glass tube in bore of which are deposited intermediate and core glass layers
GB1427826A (en) * 1973-10-09 1976-03-10 Sumitomo Electric Industries Method of producing an optical transmission line
DE2536456C2 (en) * 1975-08-16 1981-02-05 Heraeus Quarzschmelze Gmbh, 6450 Hanau Semi-finished product for the production of optical fibers and process for the production of the semi-finished product
US4199337A (en) * 1978-10-06 1980-04-22 International Telephone And Telegraph Corporation Method of fabricating high strength optical preforms
JPS55109238A (en) * 1979-02-08 1980-08-22 Nippon Telegr & Teleph Corp <Ntt> Production of base material for optical fiber
DE3133013A1 (en) * 1980-08-26 1982-04-08 Western Electric Co., Inc., 10038 New York, N.Y. "METHOD FOR PRODUCING A LIGHT-FIBER FIBER BLANK"
JPS5992937A (en) * 1982-11-19 1984-05-29 Fujitsu Ltd Production of optical fiber
CN1011227B (en) * 1985-06-25 1991-01-16 占河电气工业有限公司 Mfg. method for optics fibre
JPS62191432A (en) * 1986-02-18 1987-08-21 Sumitomo Electric Ind Ltd Preform of optical fiber with reduced defects
DE3731604A1 (en) * 1987-09-19 1989-03-30 Philips Patentverwaltung METHOD FOR PRODUCING A MONOMODE LIGHT FIBER
DE68912288T2 (en) * 1988-12-09 1994-05-05 Alcatel Nv Process for processing a preform for polarization-maintaining optical fibers.
JPH0378707A (en) * 1989-08-23 1991-04-03 Fujikura Ltd High-strength optical fiber
GB2244269A (en) * 1989-11-29 1991-11-27 Plessey Telecomm Manufacture of optical fibre preforms
DE4005729A1 (en) * 1990-02-23 1991-08-29 Kabelmetal Electro Gmbh Optical waveguide mfr. - by using glass tubes over rod blank with evacuation of hollow spaces between them
FR2679548B1 (en) * 1991-07-25 1994-10-21 Alsthom Cge Alcatel METHOD FOR MANUFACTURING ACTIVE OPTICAL FIBERS.
JPH0733460A (en) * 1993-07-16 1995-02-03 Nippon Telegr & Teleph Corp <Ntt> Optical fiber preform and its production

Similar Documents

Publication Publication Date Title
RU95117069A (en) Preparation of an optical waveguide and method of obtaining it
SE7906403L (en) OPTICAL FIBER WITH INDEX GRADIENT AND PROCEDURE FOR MANUFACTURING THIS
US4306767A (en) Single-mode optical fiber
KR880000806A (en) Distributed shift single-mode optical fiber and its manufacturing method
ATE6492T1 (en) PROCESS FOR THE MANUFACTURE OF OPTICAL GLASS FIBERS.
JPS5624306A (en) Production of optical fiber having elliptical core
JPS5992940A (en) Production of optical fiber having pore
CA2058183A1 (en) Process for the Production of an Optical Waveguide Preform
JPS6218492B2 (en)
JPS6365615B2 (en)
GB2057160A (en) Processes for producing light-conducting glass fibres
JPS60122744A (en) Manufacture of simple-mode fiber
RU2252197C1 (en) Method of production of a single-mode fiber light-guide maintaining emission polarization
JPS6350291B2 (en)
JPS6472934A (en) Production of base material for distribution-shift optical fiber
JPH0210093B2 (en)
JPS59456B2 (en) Manufacturing method of optical glass fiber
JPS5262031A (en) Manufacture of optical fiber preform
RU98111904A (en) METHOD FOR PRODUCING A SINGLE-MODE FIBER FIBER
GB2180232A (en) Optical fibre
JPS5571644A (en) Optical fiber
JPS5849632A (en) Manufacturing of optical fiber capable of conserving plane of polarization
JPS63291830A (en) Production of elliptical jacket type optical fiber reserving polarized plane
JPS6153608A (en) Manufacture of image guide
JPS5992937A (en) Production of optical fiber