JPS5741602A - Plural core optical fiber and its production - Google Patents

Plural core optical fiber and its production

Info

Publication number
JPS5741602A
JPS5741602A JP55117209A JP11720980A JPS5741602A JP S5741602 A JPS5741602 A JP S5741602A JP 55117209 A JP55117209 A JP 55117209A JP 11720980 A JP11720980 A JP 11720980A JP S5741602 A JPS5741602 A JP S5741602A
Authority
JP
Japan
Prior art keywords
fibers
grooves
axial direction
outside circumference
sticking
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.)
Pending
Application number
JP55117209A
Other languages
Japanese (ja)
Inventor
Hisashi Murata
Eiji Maekawa
Fumihiro Nihei
Satoshi Hatano
Shinji Nagasawa
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP55117209A priority Critical patent/JPS5741602A/en
Publication of JPS5741602A publication Critical patent/JPS5741602A/en
Pending 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
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2856—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers formed or shaped by thermal heating means, e.g. splitting, branching and/or combining elements
    • 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
    • G02B6/02042—Multicore optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To improve mechanical strength and space factor and to facilitate the normalization of positions by the grooves on the outside circumference and the discrimination of fibers by disposing plural pieces of optical fibers in parallel along the axial direction, and sticking only the mutually adjacent parts by melt-sticking. CONSTITUTION:Plural pieces of optical fibers 23a-23c consisting of cores 21a-21c and clads 22a-22c are disposed in parallel along their axial direction, and only the mutually adjacent parts 24a-24c are melt-stuck, whereby plural grooves 26a-26c along the axial direction are formed on the outside circumference. Then, the fibers hardly receive deformation, and high strength is retained despite the reduction of the diameters of the respective fibers. If the grooves on the outside circumference are utilized, axial alignment is easy in connection. The shape may be a flat shape or a star shape as shown in figure 4. If necessary, a dummy fiber of glass material is used for the central fiber 31.
JP55117209A 1980-08-26 1980-08-26 Plural core optical fiber and its production Pending JPS5741602A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55117209A JPS5741602A (en) 1980-08-26 1980-08-26 Plural core optical fiber and its production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55117209A JPS5741602A (en) 1980-08-26 1980-08-26 Plural core optical fiber and its production

Publications (1)

Publication Number Publication Date
JPS5741602A true JPS5741602A (en) 1982-03-08

Family

ID=14706085

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55117209A Pending JPS5741602A (en) 1980-08-26 1980-08-26 Plural core optical fiber and its production

Country Status (1)

Country Link
JP (1) JPS5741602A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694174A1 (en) * 1993-04-06 1996-01-31 Porta Systems Corporation Fiberoptic coupling
WO1999005550A1 (en) * 1997-07-25 1999-02-04 Corning Incorporated Multicore glass optical fiber and methods of manufacturing such fibres
US6154594A (en) * 1998-07-15 2000-11-28 Corning Incorporated Multicore glass optical fiber and methods of manufacturing such fibers
US7349611B2 (en) 2001-06-08 2008-03-25 Crystal Fibre A/S Photonic bandgap fibre, and use thereof
US8045259B2 (en) 2005-11-18 2011-10-25 Nkt Photonics A/S Active optical fibers with wavelength-selective filtering mechanism, method of production and their use
JP2021162624A (en) * 2020-03-30 2021-10-11 古河電気工業株式会社 Fiber connection structure and method for connecting multiple coated optical fibers and multi-core fiber

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0694174A1 (en) * 1993-04-06 1996-01-31 Porta Systems Corporation Fiberoptic coupling
WO1999005550A1 (en) * 1997-07-25 1999-02-04 Corning Incorporated Multicore glass optical fiber and methods of manufacturing such fibres
US6154594A (en) * 1998-07-15 2000-11-28 Corning Incorporated Multicore glass optical fiber and methods of manufacturing such fibers
US7349611B2 (en) 2001-06-08 2008-03-25 Crystal Fibre A/S Photonic bandgap fibre, and use thereof
US8045259B2 (en) 2005-11-18 2011-10-25 Nkt Photonics A/S Active optical fibers with wavelength-selective filtering mechanism, method of production and their use
JP2021162624A (en) * 2020-03-30 2021-10-11 古河電気工業株式会社 Fiber connection structure and method for connecting multiple coated optical fibers and multi-core fiber

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