JPS5612603A - Production of multicore type optical transmission body - Google Patents

Production of multicore type optical transmission body

Info

Publication number
JPS5612603A
JPS5612603A JP8769679A JP8769679A JPS5612603A JP S5612603 A JPS5612603 A JP S5612603A JP 8769679 A JP8769679 A JP 8769679A JP 8769679 A JP8769679 A JP 8769679A JP S5612603 A JPS5612603 A JP S5612603A
Authority
JP
Japan
Prior art keywords
glass rod
void
cores
outside circumference
optical transmission
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
JP8769679A
Other languages
Japanese (ja)
Inventor
Hiroshi Ishihara
Naoya Uchida
Susumu Hida
Hirotoshi Hondo
Masakazu Higashimoto
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.)
Furukawa Electric Co Ltd
NTT Inc
Original Assignee
Furukawa Electric Co Ltd
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 Furukawa Electric Co Ltd, Nippon Telegraph and Telephone Corp filed Critical Furukawa Electric Co Ltd
Priority to JP8769679A priority Critical patent/JPS5612603A/en
Publication of JPS5612603A publication Critical patent/JPS5612603A/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
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/02042—Multicore optical fibres

Landscapes

  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE: To enable accurate axial alignment and connection as well as the grasping of the relative positions of respective cores to be done by forming a void within a glass rod having plural mutually paralleled cores, and crushing this void, thereby forming a concave part on the outside circumference of the glass rod.
CONSTITUTION: A glass rod 1 having plural mutually paralleled cores 2a, 2b...2g is reduced to a desired small diameter in its inside longitudinal direction. This glass rod 1 is made into an optical transmission body by the working means illustrated. The pipe 8 of a vacuum sucking machine 7 is connected to one end of the glass rod 1 by a connecting tool 9 and the other end of the glass rod 1 is metled, whereby one end of a void 3 is sealed. After this, the heater 10 of a cylinder type insertionally adapted to the outside circumference of the glass rod 1 is moved in its longitudinal direction to heat the glass rod 1 to about 1,300W1,500°C to soften, and while doing this, the inside of the void 3 is evacuated by the vacuum sucking machine 7 to crush the void 3 by the synergistic action of this heating and evacuating, whereby the outside circumference of the glass rod 1 is formed with a concave part 11.
COPYRIGHT: (C)1981,JPO&Japio
JP8769679A 1979-07-11 1979-07-11 Production of multicore type optical transmission body Pending JPS5612603A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8769679A JPS5612603A (en) 1979-07-11 1979-07-11 Production of multicore type optical transmission body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8769679A JPS5612603A (en) 1979-07-11 1979-07-11 Production of multicore type optical transmission body

Publications (1)

Publication Number Publication Date
JPS5612603A true JPS5612603A (en) 1981-02-07

Family

ID=13922081

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8769679A Pending JPS5612603A (en) 1979-07-11 1979-07-11 Production of multicore type optical transmission body

Country Status (1)

Country Link
JP (1) JPS5612603A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010286548A (en) * 2009-06-09 2010-12-24 Sumitomo Electric Ind Ltd Multi-core fiber and optical connector including the same
JP2013522679A (en) * 2010-03-16 2013-06-13 オーエフエス ファイテル，エルエルシー Single core connector for multi-core fiber optic cable
JP2013522680A (en) * 2010-03-16 2013-06-13 オーエフエス ファイテル，エルエルシー Multi-core fiber connector for multi-core optical fiber cable
EP2369380A4 (en) * 2008-12-24 2014-04-16 Furukawa Electric Co Ltd OPTICAL FIBER AT MULTIPLE
WO2015093573A1 (en) * 2013-12-18 2015-06-25 住友電気工業株式会社 Multicore optical fiber and optical module
JP2016148806A (en) * 2015-02-13 2016-08-18 株式会社中原光電子研究所 Polarization maintaining optical fiber, capillary, and connector

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55133003A (en) * 1979-04-04 1980-10-16 Furukawa Electric Co Ltd:The Production of multicore type optical fiber

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55133003A (en) * 1979-04-04 1980-10-16 Furukawa Electric Co Ltd:The Production of multicore type optical fiber

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2369380A4 (en) * 2008-12-24 2014-04-16 Furukawa Electric Co Ltd OPTICAL FIBER AT MULTIPLE
JP2010286548A (en) * 2009-06-09 2010-12-24 Sumitomo Electric Ind Ltd Multi-core fiber and optical connector including the same
JP2013522679A (en) * 2010-03-16 2013-06-13 オーエフエス ファイテル，エルエルシー Single core connector for multi-core fiber optic cable
JP2013522680A (en) * 2010-03-16 2013-06-13 オーエフエス ファイテル，エルエルシー Multi-core fiber connector for multi-core optical fiber cable
US8801301B2 (en) 2010-03-16 2014-08-12 Ofs Fitel, Llc Simplex connectors for multicore optical fiber cables
JP2014225036A (en) * 2010-03-16 2014-12-04 オーエフエス ファイテル，エルエルシー Multicore fiber connector for multi-core optical fiber cable
US9069143B2 (en) 2010-03-16 2015-06-30 Ofs Fitel, Llc Multifiber connectors for multicore optical fiber cables
WO2015093573A1 (en) * 2013-12-18 2015-06-25 住友電気工業株式会社 Multicore optical fiber and optical module
JP2015118270A (en) * 2013-12-18 2015-06-25 住友電気工業株式会社 Multi-core optical fiber and optical module
CN105829927A (en) * 2013-12-18 2016-08-03 住友电气工业株式会社 Multicore optical fiber and optical module
US9482814B2 (en) 2013-12-18 2016-11-01 Sumitomo Electric Industries, Ltd. Multicore optical fiber and optical module
JP2016148806A (en) * 2015-02-13 2016-08-18 株式会社中原光電子研究所 Polarization maintaining optical fiber, capillary, and connector

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