DE3485882T2 - Ummantelte optische fasern mit niedrigem verlust aus haliden und verfahren zu ihrer herstellung. - Google Patents

Ummantelte optische fasern mit niedrigem verlust aus haliden und verfahren zu ihrer herstellung.

Info

Publication number
DE3485882T2
DE3485882T2 DE8484307503T DE3485882T DE3485882T2 DE 3485882 T2 DE3485882 T2 DE 3485882T2 DE 8484307503 T DE8484307503 T DE 8484307503T DE 3485882 T DE3485882 T DE 3485882T DE 3485882 T2 DE3485882 T2 DE 3485882T2
Authority
DE
Germany
Prior art keywords
halides
production
optical fibers
low loss
covered optical
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 - Fee Related
Application number
DE8484307503T
Other languages
English (en)
Other versions
DE3485882D1 (de
Inventor
Terry A Fuller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuller Research Corp
Original Assignee
Fuller Research Corp
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
Application filed by Fuller Research Corp filed Critical Fuller Research Corp
Application granted granted Critical
Publication of DE3485882D1 publication Critical patent/DE3485882D1/de
Publication of DE3485882T2 publication Critical patent/DE3485882T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00663—Production of light guides
    • B29D11/00711—Production of light guides by shrinking the sleeve or cladding onto the core
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B11/00—Making preforms
    • B29B11/14—Making preforms characterised by structure or composition
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/05—Filamentary, e.g. strands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00663—Production of light guides
    • B29D11/00701—Production of light guides having an intermediate layer between core and cladding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00663—Production of light guides
    • B29D11/00721—Production of light guides involving preforms for the manufacture of light guides
    • 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
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique
    • 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
    • C03B37/022—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from molten glass in which the resultant product consists of different sorts of glass or is characterised by shape, e.g. hollow fibres, undulated fibres, fibres presenting a rough surface
    • C03B37/023—Fibres composed of different sorts of glass, e.g. glass optical fibres, made by the double crucible technique
    • C03B37/0235—Thermal treatment of the fibre during the drawing process, e.g. cooling
    • 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
    • C03C13/041—Non-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
    • C03C25/00—Surface treatment of fibres or filaments made from glass, minerals or slags
    • C03C25/10—Coating
    • C03C25/104—Coating to obtain optical fibres
    • C03C25/106—Single coatings
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
    • C30B29/10—Inorganic compounds or compositions
    • C30B29/12—Halides
    • C—CHEMISTRY; METALLURGY
    • C30—CRYSTAL GROWTH
    • C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
    • C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
    • 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
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/102—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type for infrared and ultraviolet radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2949/00—Indexing scheme relating to blow-moulding
    • B29C2949/07—Preforms or parisons characterised by their configuration
    • B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/80—Non-oxide glasses or glass-type compositions
    • C03B2201/84—Halide glasses other than fluoride glasses, i.e. Cl, Br or I glasses, e.g. AgCl-AgBr "glass"
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/04—Non-vertical drawing
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Optics & Photonics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Metallurgy (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Toxicology (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Glass Compositions (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
DE8484307503T 1983-12-27 1984-10-31 Ummantelte optische fasern mit niedrigem verlust aus haliden und verfahren zu ihrer herstellung. Expired - Fee Related DE3485882T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/565,569 US4678274A (en) 1983-12-27 1983-12-27 Low loss cladded optical fibers from halides and process for making same

Publications (2)

Publication Number Publication Date
DE3485882D1 DE3485882D1 (de) 1992-09-24
DE3485882T2 true DE3485882T2 (de) 1993-03-11

Family

ID=24259207

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8484307503T Expired - Fee Related DE3485882T2 (de) 1983-12-27 1984-10-31 Ummantelte optische fasern mit niedrigem verlust aus haliden und verfahren zu ihrer herstellung.

Country Status (10)

Country Link
US (1) US4678274A (de)
EP (1) EP0149306B1 (de)
JP (1) JPS60158404A (de)
KR (1) KR850004648A (de)
AT (1) ATE79656T1 (de)
AU (1) AU3531284A (de)
CA (1) CA1246913A (de)
DE (1) DE3485882T2 (de)
IL (1) IL73423A (de)
ZA (1) ZA848705B (de)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2563826B1 (fr) * 1984-05-07 1991-08-30 Verre Fluore Sa Procedes de fabrication de fibres et de composants optiques en verres fluores et appareils destines a les mettre en oeuvre
CA1298111C (en) * 1986-01-18 1992-03-31 Noriyuki Yoshida High power optical fiber
IL81690A0 (en) * 1986-03-15 1987-09-16 Sumitomo Electric Industries Crystalline optical fiber and its manufacture
EP0247322A3 (de) * 1986-05-27 1989-02-01 Siemens Aktiengesellschaft Verfahren zur Herstellung einer Vorform zum Ziehen von optischen Glasfasern
US4871487A (en) * 1987-01-16 1989-10-03 The Dow Chemical Company Method of making a polymeric optical waveguide by coextrusion
US4807964A (en) * 1987-06-12 1989-02-28 Ppg Industries, Inc. Plastic optical fiber
US4838918A (en) * 1987-12-01 1989-06-13 Alcatel Na Inert atmosphere cooler for optical fibers
US4955689A (en) * 1987-12-17 1990-09-11 Fuller Research Corporation IR transmitting optical fiber
US5186870A (en) * 1987-12-17 1993-02-16 Fuller Research Corporation Process for fabricating an IR transmitting optical fiber
US4893895A (en) * 1988-04-05 1990-01-16 The Babcock & Wilcox Company An improved encased high temperature optical fiber
AU616589B2 (en) * 1989-01-30 1991-10-31 Lumenyte International Corporation Improved linear optical conduits, systems and methods of manufacture
JPH03288804A (ja) * 1990-04-05 1991-12-19 Matsushita Electric Ind Co Ltd 赤外光ファイバとその製造方法
US5169421A (en) * 1990-09-15 1992-12-08 The Furukawa Electric Co., Ltd. Method of manufacturing silica glass optical waveguide preform
US5704899A (en) * 1995-10-10 1998-01-06 Conceptus, Inc. Protective sheath for a fiberoptic image guide within an articulated endoscope
US6109064A (en) * 1998-03-31 2000-08-29 Siemens Information And Communication Networks, Inc. Process for treating optical fibers by cryogenic tempering
CA2336007A1 (en) * 1998-06-29 2000-01-06 Syracuse University Method of fabricating a cylindrical optical fiber containing an optically active film
US6072930A (en) * 1998-11-04 2000-06-06 Syracuse University Method of fabricating a cylindrical optical fiber containing a particulate optically active film
US6537377B1 (en) 1999-09-03 2003-03-25 Alcatel Apparatus for coating optical fibers
US6456895B1 (en) * 1999-09-13 2002-09-24 Fitel Usa Corp. Method and apparatus for detecting conditions in a UV curing lamp system
US6406474B1 (en) * 1999-09-30 2002-06-18 Ceramoptec Ind Inc Device and method for application of radiation
US6485562B1 (en) 2001-08-16 2002-11-26 Ceramoptec Industries, Inc. Production of material with improved infrared transmission
EP1494847B1 (de) * 2002-04-16 2007-07-25 Prysmian Cavi e Sistemi Energia S.r.l. Verfahren zur herstellung von einer mikrostrukturierten optischen faser
US9201207B2 (en) 2006-08-02 2015-12-01 Schlumberger Technology Corporation Packaging for encasing an optical fiber in a cable
US20080031578A1 (en) * 2006-08-02 2008-02-07 Joseph Varkey Packaging for encasing an optical fiber in a cable
JP5974488B2 (ja) * 2011-04-15 2016-08-23 住友電気工業株式会社 光ファイバおよび光ファイバ母材
CA2851877C (en) 2011-10-17 2021-02-09 Schlumberger Canada Limited Dual use cable with fiber optic packaging for use in wellbore operations
MX357738B (es) 2012-06-28 2018-07-23 Schlumberger Technology Bv Cable optoeléctrico de alta potencia con múltiples vías de energía y telemetría.
US10081887B2 (en) * 2012-12-14 2018-09-25 Intel Corporation Electrically functional fabric for flexible electronics
US9822470B2 (en) 2012-12-14 2017-11-21 Intel Corporation Flexible embedded interconnects
WO2016122446A1 (en) 2015-01-26 2016-08-04 Schlumberger Canada Limited Electrically conductive fiber optic slickline for coiled tubing operations
US10049789B2 (en) 2016-06-09 2018-08-14 Schlumberger Technology Corporation Compression and stretch resistant components and cables for oilfield applications
EP3479991A1 (de) * 2017-11-03 2019-05-08 Polytex Sportbeläge Produktions-GmbH Polymerkoextrusionskopf mit zweikanaldüse
RU2682563C1 (ru) * 2018-04-09 2019-03-19 Федеральное государственное автономное образовательное учреждение высшего образования "Уральский федеральный университет имени первого Президента России Б.Н. Ельцина" (УрФУ) Одномодовый кристаллический инфракрасный световод
RU190315U1 (ru) * 2019-05-14 2019-06-26 Акционерное общество "Стелла-К" Короткодуговая газоразрядная лампа для устройства оптико-электронного противодействия инфракрасным головкам самонаведения управляемых ракет
WO2024011245A2 (en) * 2022-07-08 2024-01-11 Samtec, Inc. Additive manufactured waveguide

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2325061A1 (fr) * 1975-09-19 1977-04-15 Cables De Lyon Geoffroy Delore Protection d'une fibre optique
DE2606782C2 (de) * 1976-02-19 1985-05-23 Siemens AG, 1000 Berlin und 8000 München Außenhülle für Lichtwellenleiter-Fasern oder Faserbündel
JPS54124746A (en) * 1978-03-20 1979-09-27 Kokusai Denshin Denwa Co Ltd Fiber for optical transmission
JPS5548705A (en) * 1978-10-03 1980-04-08 Sumitomo Electric Ind Ltd Optical fiber
US4253731A (en) * 1979-04-09 1981-03-03 Honeywell Inc. Infrared fiber of AgCl clad AgBr and method of fabrication
DE2926415A1 (de) * 1979-06-29 1981-01-08 Siemens Ag Verfahren zur herstellung eines zugfesten lichtwellenleiters
JPS5854096B2 (ja) * 1979-10-19 1983-12-02 日本電信電話株式会社 光フアイバの製造方法
JPS5689704A (en) * 1979-12-21 1981-07-21 Sumitomo Electric Ind Ltd Infrared light transmitting fiber
JPS585406B2 (ja) * 1980-01-22 1983-01-31 工業技術院長 赤外用光フアイバ−ならびにその製造方法
JPS56104304A (en) * 1980-01-22 1981-08-20 Agency Of Ind Science & Technol Optical fiber for infrared light
JPS6053844B2 (ja) * 1981-01-12 1985-11-27 住友電気工業株式会社 赤外用光フアイバ−とその製造方法
JPS5880602A (ja) * 1981-11-09 1983-05-14 Sumitomo Electric Ind Ltd 赤外光用フアイバ
JPS5891405A (ja) * 1981-11-27 1983-05-31 Olympus Optical Co Ltd 多結晶赤外線フアイバの製造方法
US4552434A (en) * 1982-03-16 1985-11-12 Sumitomo Electric Industries, Ltd. Crystalline infrared optical fiber with a small gap and a process for the production of same

Also Published As

Publication number Publication date
CA1246913A (en) 1988-12-20
ZA848705B (en) 1985-12-24
US4678274A (en) 1987-07-07
EP0149306A2 (de) 1985-07-24
EP0149306A3 (en) 1986-10-08
IL73423A0 (en) 1985-02-28
JPS60158404A (ja) 1985-08-19
IL73423A (en) 1989-01-31
KR850004648A (ko) 1985-07-25
AU3531284A (en) 1985-07-04
EP0149306B1 (de) 1992-08-19
ATE79656T1 (de) 1992-09-15
DE3485882D1 (de) 1992-09-24

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