[go: up one dir, main page]

JPS5782805A - Production of multicore preform rod - Google Patents

Production of multicore preform rod

Info

Publication number
JPS5782805A
JPS5782805A JP15909880A JP15909880A JPS5782805A JP S5782805 A JPS5782805 A JP S5782805A JP 15909880 A JP15909880 A JP 15909880A JP 15909880 A JP15909880 A JP 15909880A JP S5782805 A JPS5782805 A JP S5782805A
Authority
JP
Japan
Prior art keywords
materials
core
outside
roundness
fine powder
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
JP15909880A
Other languages
Japanese (ja)
Inventor
Yukinori Ishida
Yoshio Kashima
Masao Nishimura
Kunio Ogura
Kazuaki Yoshida
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
Nippon Telegraph and Telephone Corp
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 JP15909880A priority Critical patent/JPS5782805A/en
Publication of JPS5782805A publication Critical patent/JPS5782805A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C03B37/012—Manufacture of preforms for drawing fibres or filaments
    • C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
    • C03B37/01486—Means for supporting, rotating or translating the preforms being formed, e.g. lathes
    • C03B37/01493—Deposition substrates, e.g. targets, mandrels, start rods or tubes
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/34—Plural core other than bundles, e.g. double core

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To hold the roundness of a core and also to ensure high accuracy for the measurement between cores, by arraying plural core materials with a prescribed space and providing the quartz glass fine powder to the outside of each core material. CONSTITUTION:Both ends of core materials 10 and 10a are fixed to a pair of fixing tools 11a and 11b so as to secure a prescribed space between the materials. Then an oxyhydrogen flame burner 12 is ignited. The burner 12 is set at the obliquely lower part of the material 10. Thus the quartz glass fine powder 12' is grown and then sprayed to the outside of the materials 10 and 10a to form a porous material 14 at the outside of these materials. Thereafter, the materials 10 and 10a are turned centering around the material 10a positioned at the center and at the same time raised up. After the growth of the material 14 is through over the entire length, the tools 11a and 11b are removed. Then the material 14 is sintered and turned transparent in a high-temperature oven, and this temperature is set lower than the softening point of the materials 10 and 10a respectively. In such way, the roundness is ensured for the materials 10 and 10a.
JP15909880A 1980-11-12 1980-11-12 Production of multicore preform rod Pending JPS5782805A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15909880A JPS5782805A (en) 1980-11-12 1980-11-12 Production of multicore preform rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15909880A JPS5782805A (en) 1980-11-12 1980-11-12 Production of multicore preform rod

Publications (1)

Publication Number Publication Date
JPS5782805A true JPS5782805A (en) 1982-05-24

Family

ID=15686188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15909880A Pending JPS5782805A (en) 1980-11-12 1980-11-12 Production of multicore preform rod

Country Status (1)

Country Link
JP (1) JPS5782805A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002533290A (en) * 1998-12-21 2002-10-08 コーニング・インコーポレーテッド Optical crystal fiber
EP1518833A1 (en) * 2003-09-18 2005-03-30 Samsung Electronics Co., Ltd. Apparatus and method for manufacturing optical fiber preform
JP2013177269A (en) * 2012-02-28 2013-09-09 Nippon Telegr & Teleph Corp <Ntt> Method for producing optical fiber preform
WO2014178293A1 (en) * 2013-05-01 2014-11-06 古河電気工業株式会社 Method for producing optical fiber base material, and method for producing optical fiber
JP2015151328A (en) * 2014-02-19 2015-08-24 住友電気工業株式会社 Multi-core optical fiber preform manufacturing method
JP2015178444A (en) * 2014-02-28 2015-10-08 株式会社フジクラ Method of manufacturing base material for multicore fiber, and method of manufacturing multicore fiber using the same
JP5835823B1 (en) * 2014-07-09 2015-12-24 日本電信電話株式会社 Multi-core optical fiber preform manufacturing method
JP2016017029A (en) * 2014-07-11 2016-02-01 株式会社フジクラ Method of manufacturing base material for multi-core fiber, and method of manufacturing multi-core fiber using the same
WO2017170567A1 (en) * 2016-03-30 2017-10-05 古河電気工業株式会社 Method for manufacturing optical fiber parent material, and method for manufacturing optical fiber
JP2018058719A (en) * 2016-10-04 2018-04-12 株式会社フジクラ Method for manufacturing base material for multi-core fiber, and method for manufacturing multi-core fiber using the same
JP2018100206A (en) * 2016-12-22 2018-06-28 古河電気工業株式会社 Method for manufacturing optical fiber and optical fiber
WO2019035267A1 (en) * 2017-08-14 2019-02-21 株式会社フジクラ Method for manufacturing optical fiber preform

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002533290A (en) * 1998-12-21 2002-10-08 コーニング・インコーポレーテッド Optical crystal fiber
EP1518833A1 (en) * 2003-09-18 2005-03-30 Samsung Electronics Co., Ltd. Apparatus and method for manufacturing optical fiber preform
JP2013177269A (en) * 2012-02-28 2013-09-09 Nippon Telegr & Teleph Corp <Ntt> Method for producing optical fiber preform
US9695079B2 (en) 2013-05-01 2017-07-04 Furukawa Electric Co., Ltd. Production method of optical fiber preform, and production method of optical fiber
JP5740065B2 (en) * 2013-05-01 2015-06-24 古河電気工業株式会社 Optical fiber preform manufacturing method and optical fiber manufacturing method
WO2014178293A1 (en) * 2013-05-01 2014-11-06 古河電気工業株式会社 Method for producing optical fiber base material, and method for producing optical fiber
JP2015151328A (en) * 2014-02-19 2015-08-24 住友電気工業株式会社 Multi-core optical fiber preform manufacturing method
JP2015178444A (en) * 2014-02-28 2015-10-08 株式会社フジクラ Method of manufacturing base material for multicore fiber, and method of manufacturing multicore fiber using the same
JP5835823B1 (en) * 2014-07-09 2015-12-24 日本電信電話株式会社 Multi-core optical fiber preform manufacturing method
JP2016017029A (en) * 2014-07-11 2016-02-01 株式会社フジクラ Method of manufacturing base material for multi-core fiber, and method of manufacturing multi-core fiber using the same
WO2017170567A1 (en) * 2016-03-30 2017-10-05 古河電気工業株式会社 Method for manufacturing optical fiber parent material, and method for manufacturing optical fiber
JP2018058719A (en) * 2016-10-04 2018-04-12 株式会社フジクラ Method for manufacturing base material for multi-core fiber, and method for manufacturing multi-core fiber using the same
JP2018100206A (en) * 2016-12-22 2018-06-28 古河電気工業株式会社 Method for manufacturing optical fiber and optical fiber
WO2019035267A1 (en) * 2017-08-14 2019-02-21 株式会社フジクラ Method for manufacturing optical fiber preform
JP2019034865A (en) * 2017-08-14 2019-03-07 株式会社フジクラ Production method of optical fiber preform

Similar Documents

Publication Publication Date Title
JPS52121341A (en) Production of optical fiber base materials and production apparatus fo r the same
JPS5782805A (en) Production of multicore preform rod
GB2083806B (en) Fabrication methods of doped silica glass and optical fibre preform by using the doped silica glass
GB2054553B (en) Process for producing high-purity silica glass with reduced oh-content
JPS54112218A (en) Production of optical fiber
JPS52152244A (en) Method of manufacturing optical fiber preform
JPS5738331A (en) Manufacture of base material for multicore fiber
JPS57170835A (en) Manufacture of single-mode optical fiber
JPS5619008A (en) Optical fiber and its manufacture
JPS57205333A (en) Manufacture of single-polarization single-mode optical fiber
JPS57140329A (en) Manufacture of base material for optical fiber
JPS5510468A (en) Production of glass fiber for light communication
JPS5248329A (en) Method for preparation of optical fibers
JPS5448566A (en) Production of fiber parent material for optical communication
JPS51119237A (en) Manufacturing method of glass fiber for optical communication
GB1473779A (en) Optical guides
JPS5717440A (en) Manufacture of porous glass base material for single- polarization single-mode optical fiber
JPS5448565A (en) Production of fiber for optical communication
JPS56155037A (en) Preparation of optical fiber with low loss
JPS51126158A (en) Manufacturing method of optical fiber base material
JPS5510459A (en) Production of fiber base material for light communication and burner for production
JPS52131735A (en) Manufacture of optical fiber
JPS57205332A (en) Manufacture of constant polarization optical fiber
JPS5278450A (en) Continuous process for producing optical glass fibers
JPS577834A (en) Manufacture of preform for optical fiber