JPS5650136A - Manufacture of optical fiber base material - Google Patents

Manufacture of optical fiber base material

Info

Publication number
JPS5650136A
JPS5650136A JP12367979A JP12367979A JPS5650136A JP S5650136 A JPS5650136 A JP S5650136A JP 12367979 A JP12367979 A JP 12367979A JP 12367979 A JP12367979 A JP 12367979A JP S5650136 A JPS5650136 A JP S5650136A
Authority
JP
Japan
Prior art keywords
refractive index
preform
vicinity
outside
dopant
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.)
Granted
Application number
JP12367979A
Other languages
Japanese (ja)
Other versions
JPS5844619B2 (en
Inventor
Masao Kawachi
Kazuo Sanada
Koichi Inada
Takeru Fukuda
Takao Shioda
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.)
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Original Assignee
Fujikura 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 Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP54123679A priority Critical patent/JPS5844619B2/en
Publication of JPS5650136A publication Critical patent/JPS5650136A/en
Publication of JPS5844619B2 publication Critical patent/JPS5844619B2/en
Expired 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]
    • C03B37/01446—Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2201/00—Type of glass produced
    • C03B2201/06—Doped silica-based glasses
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant

Abstract

PURPOSE:To obtain an optical fiber base material having a lowered refractive index in the vicinity of the outside by heat treating a porous glass preform obtd. by a vapor phase axial sticking method in an atmosphere of a lower refractive index dopant to adjust the refractive index distribution. CONSTITUTION:Sootlike glass fine particles are stuck and deposited on the lower end of a rodlike substrate rotating and moving upward by a vapor phase axial sticking method, and while pulling up the substrate the particles are grown in the axial direction to form a rodlike porous glass preform. The preform is then heat treated in an atmosphere of a lower refractive index dopant such as fluoride or boron compound. By this treatment vapor of the dopant is diffused in the preform, and bonding occurs in the vicinity of the outside of the preform. As a result, the refractive index in the vicinity of the outside is lowered to give a square distribution type profile.
JP54123679A 1979-09-26 1979-09-26 Manufacturing method of optical fiber base material Expired JPS5844619B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54123679A JPS5844619B2 (en) 1979-09-26 1979-09-26 Manufacturing method of optical fiber base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54123679A JPS5844619B2 (en) 1979-09-26 1979-09-26 Manufacturing method of optical fiber base material

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP21665382A Division JPS596820B2 (en) 1982-12-10 1982-12-10 Manufacturing method of optical fiber base material

Publications (2)

Publication Number Publication Date
JPS5650136A true JPS5650136A (en) 1981-05-07
JPS5844619B2 JPS5844619B2 (en) 1983-10-04

Family

ID=14866615

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54123679A Expired JPS5844619B2 (en) 1979-09-26 1979-09-26 Manufacturing method of optical fiber base material

Country Status (1)

Country Link
JP (1) JPS5844619B2 (en)

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170831A (en) * 1981-04-13 1982-10-21 Nippon Telegr & Teleph Corp <Ntt> Manufacture of porous base material for optical fluoride fiber
JPS6060938A (en) * 1983-09-10 1985-04-08 Furukawa Electric Co Ltd:The Manufacture of quartz base material for optical fiber
US4579571A (en) * 1984-10-09 1986-04-01 Polaroid Corporation Method for fabricating optical fiber preforms
US4586943A (en) * 1983-10-20 1986-05-06 Sumitomo Electric Industries, Ltd. Method for the production of glass preform for optical fibers
US4629485A (en) * 1983-09-26 1986-12-16 Corning Glass Works Method of making fluorine doped optical preform and fiber and resultant articles
US4693738A (en) * 1984-10-05 1987-09-15 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US4707174A (en) * 1983-12-22 1987-11-17 American Telephone And Telegraph Company, At&T Bell Laboratories Fabrication of high-silica glass article
US4734117A (en) * 1985-03-19 1988-03-29 Northern Telecom Limited Optical waveguide manufacture
US4812155A (en) * 1983-10-19 1989-03-14 Nippon Telegraph & Telephone Public Corporation Method for production of glass preform for optical fibers
US4867774A (en) * 1985-05-21 1989-09-19 Alcatel N.V. Method of producing an elongated glass body, particularly a preform for optical waveguides
US4880452A (en) * 1984-06-04 1989-11-14 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber containing fluorine in cladding
US4968339A (en) * 1990-01-02 1990-11-06 At&T Bell Laboratories Method of fluorine doped modified chemical vapor deposition
US4979971A (en) * 1984-05-15 1990-12-25 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US5039325A (en) * 1990-01-02 1991-08-13 At&T Bell Laboratories Method for consolidating doped glass using an encapsulating structure
US5053068A (en) * 1985-04-25 1991-10-01 Sumitomo Electric Industries, Ltd. High pressure fluorine method for producing preform for optical fiber
US5076824A (en) * 1990-05-14 1991-12-31 At&T Bell Laboratories Method of making fiber optical preform with pyrolytic coated mandrel
US5217516A (en) * 1985-12-27 1993-06-08 Sumitomo Electric Industries, Ltd. Method of making optical glass article
US5221309A (en) * 1984-05-15 1993-06-22 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6174921U (en) * 1984-10-20 1986-05-21
JPH07234738A (en) * 1994-02-22 1995-09-05 Nishiyama:Kk Manufacture of grip incorporating switch

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127914A (en) * 1978-03-29 1979-10-04 Nippon Telegraph & Telephone Production of anhydrous glass material for optical fibers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54127914A (en) * 1978-03-29 1979-10-04 Nippon Telegraph & Telephone Production of anhydrous glass material for optical fibers

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57170831A (en) * 1981-04-13 1982-10-21 Nippon Telegr & Teleph Corp <Ntt> Manufacture of porous base material for optical fluoride fiber
JPS6060938A (en) * 1983-09-10 1985-04-08 Furukawa Electric Co Ltd:The Manufacture of quartz base material for optical fiber
US4629485A (en) * 1983-09-26 1986-12-16 Corning Glass Works Method of making fluorine doped optical preform and fiber and resultant articles
US4812155A (en) * 1983-10-19 1989-03-14 Nippon Telegraph & Telephone Public Corporation Method for production of glass preform for optical fibers
US4586943A (en) * 1983-10-20 1986-05-06 Sumitomo Electric Industries, Ltd. Method for the production of glass preform for optical fibers
US4707174A (en) * 1983-12-22 1987-11-17 American Telephone And Telegraph Company, At&T Bell Laboratories Fabrication of high-silica glass article
US4979971A (en) * 1984-05-15 1990-12-25 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US5221309A (en) * 1984-05-15 1993-06-22 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US4880452A (en) * 1984-06-04 1989-11-14 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber containing fluorine in cladding
US4693738A (en) * 1984-10-05 1987-09-15 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US4579571A (en) * 1984-10-09 1986-04-01 Polaroid Corporation Method for fabricating optical fiber preforms
US4734117A (en) * 1985-03-19 1988-03-29 Northern Telecom Limited Optical waveguide manufacture
US5053068A (en) * 1985-04-25 1991-10-01 Sumitomo Electric Industries, Ltd. High pressure fluorine method for producing preform for optical fiber
US5158587A (en) * 1985-04-25 1992-10-27 Sumitomo Electric Industries, Ltd. Method for producing glass preform for optical fiber
US4867774A (en) * 1985-05-21 1989-09-19 Alcatel N.V. Method of producing an elongated glass body, particularly a preform for optical waveguides
US5217516A (en) * 1985-12-27 1993-06-08 Sumitomo Electric Industries, Ltd. Method of making optical glass article
US4968339A (en) * 1990-01-02 1990-11-06 At&T Bell Laboratories Method of fluorine doped modified chemical vapor deposition
US5039325A (en) * 1990-01-02 1991-08-13 At&T Bell Laboratories Method for consolidating doped glass using an encapsulating structure
US5076824A (en) * 1990-05-14 1991-12-31 At&T Bell Laboratories Method of making fiber optical preform with pyrolytic coated mandrel

Also Published As

Publication number Publication date
JPS5844619B2 (en) 1983-10-04

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