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WO1999060426A3 - Method of making a plastic optical fibre, and a plastic optical fibre - Google Patents

Method of making a plastic optical fibre, and a plastic optical fibre Download PDF

Info

Publication number
WO1999060426A3
WO1999060426A3 PCT/FI1999/000425 FI9900425W WO9960426A3 WO 1999060426 A3 WO1999060426 A3 WO 1999060426A3 FI 9900425 W FI9900425 W FI 9900425W WO 9960426 A3 WO9960426 A3 WO 9960426A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical fibre
plastic optical
making
fibre
layers
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.)
Ceased
Application number
PCT/FI1999/000425
Other languages
French (fr)
Other versions
WO1999060426A2 (en
Inventor
Kari Kirjavainen
Markku Suvanto
Jouni Heinonen
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.)
Mindset Holding SA
Draka NK Cables Oy
Original Assignee
Nextrom Holding SA
NK Cables Oy
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 Nextrom Holding SA, NK Cables Oy filed Critical Nextrom Holding SA
Priority to EP99952123A priority Critical patent/EP1095296A2/en
Priority to BR9911052-0A priority patent/BR9911052A/en
Priority to JP2000549985A priority patent/JP2002516402A/en
Priority to KR1020007012961A priority patent/KR20010043715A/en
Priority to AU42673/99A priority patent/AU4267399A/en
Publication of WO1999060426A2 publication Critical patent/WO1999060426A2/en
Publication of WO1999060426A3 publication Critical patent/WO1999060426A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/02057—Optical fibres with cladding with or without a coating comprising gratings
    • G02B6/02076—Refractive index modulation gratings, e.g. Bragg gratings
    • G02B6/02123—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating
    • G02B6/02152—Refractive index modulation gratings, e.g. Bragg gratings characterised by the method of manufacture of the grating involving moving the fibre or a manufacturing element, stretching of the fibre
    • 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
    • G02B6/02033—Core or cladding made from organic material, e.g. polymeric material
    • G02B6/02038—Core or cladding made from organic material, e.g. polymeric material with core or cladding having graded refractive index
    • 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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Surface Treatment Of Glass Fibres Or Filaments (AREA)

Abstract

The invention relates to a method of making a plastic optical fibre, in which method plastic materials with suitable optical properties are fed into an extrusion apparatus so as to form a multilayer structure where the refractive index decreases gradually in a controlled manner from the inside outwards. The invention also relates to a plastic optical fibre. In order to provide flexible and continuous manufacture and a wideband fibre, the extrusion apparatus consists of at least one multilayer conical extruder unit (1) which produces a product where the layers are formed without weld lines, are symmetrical and adhere well to each other. The number of the layers may also be high.
PCT/FI1999/000425 1998-05-19 1999-05-17 Method of making a plastic optical fibre, and a plastic optical fibre Ceased WO1999060426A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP99952123A EP1095296A2 (en) 1998-05-19 1999-05-17 Method of making a plastic optical fibre, and a plastic optical fibre
BR9911052-0A BR9911052A (en) 1998-05-19 1999-05-17 Method for the manufacture of a plastic optical fiber, and a plastic optical fiber
JP2000549985A JP2002516402A (en) 1998-05-19 1999-05-17 Method of manufacturing plastic optical fiber and plastic optical fiber
KR1020007012961A KR20010043715A (en) 1998-05-19 1999-05-17 Method of making a plastic optical fibre, and a plastic optical fibre
AU42673/99A AU4267399A (en) 1998-05-19 1999-05-17 Method of making a plastic optical fibre, and a plastic optical fibre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI981114 1998-05-19
FI981114A FI981114A7 (en) 1998-05-19 1998-05-19 Method for manufacturing optical plastic fiber and optical plastic fiber

Publications (2)

Publication Number Publication Date
WO1999060426A2 WO1999060426A2 (en) 1999-11-25
WO1999060426A3 true WO1999060426A3 (en) 2000-01-13

Family

ID=8551760

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI1999/000425 Ceased WO1999060426A2 (en) 1998-05-19 1999-05-17 Method of making a plastic optical fibre, and a plastic optical fibre

Country Status (7)

Country Link
EP (1) EP1095296A2 (en)
JP (1) JP2002516402A (en)
KR (1) KR20010043715A (en)
AU (1) AU4267399A (en)
BR (1) BR9911052A (en)
FI (1) FI981114A7 (en)
WO (1) WO1999060426A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7764854B2 (en) * 2005-12-27 2010-07-27 Ofs Fitel Llc Optical fiber with specialized index profile to compensate for bend-induced distortions

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0452603A (en) * 1990-06-20 1992-02-20 Nok Corp Manufacture of distributed index type rubber optical fiber
US5235660A (en) * 1992-07-10 1993-08-10 Peachtree Fiberoptics, Inc. Graded polymer optical fibers and process for the manufacture thereof
US5555525A (en) * 1994-09-07 1996-09-10 Industrial Technology Research Institute Method of making graded refractive index polymeric optical fibers and optical fibers made by the method
JPH09133818A (en) * 1995-11-09 1997-05-20 Sumitomo Wiring Syst Ltd Production of graded index plastic optical fiber
US5729645A (en) * 1996-08-13 1998-03-17 The Trustees Of The University Of Pennsylvania Graded index optical fibers

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0452603A (en) * 1990-06-20 1992-02-20 Nok Corp Manufacture of distributed index type rubber optical fiber
US5235660A (en) * 1992-07-10 1993-08-10 Peachtree Fiberoptics, Inc. Graded polymer optical fibers and process for the manufacture thereof
US5555525A (en) * 1994-09-07 1996-09-10 Industrial Technology Research Institute Method of making graded refractive index polymeric optical fibers and optical fibers made by the method
JPH09133818A (en) * 1995-11-09 1997-05-20 Sumitomo Wiring Syst Ltd Production of graded index plastic optical fiber
US5729645A (en) * 1996-08-13 1998-03-17 The Trustees Of The University Of Pennsylvania Graded index optical fibers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 16, no. 241 *
PATENT ABSTRACTS OF JAPAN vol. 199, no. 709 *

Also Published As

Publication number Publication date
FI981114A7 (en) 1999-11-20
WO1999060426A2 (en) 1999-11-25
BR9911052A (en) 2001-02-06
AU4267399A (en) 1999-12-06
FI981114A0 (en) 1998-05-19
KR20010043715A (en) 2001-05-25
JP2002516402A (en) 2002-06-04
EP1095296A2 (en) 2001-05-02

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