JPS55144437A - Producing optical fiber matrix - Google Patents

Producing optical fiber matrix

Info

Publication number
JPS55144437A
JPS55144437A JP5234679A JP5234679A JPS55144437A JP S55144437 A JPS55144437 A JP S55144437A JP 5234679 A JP5234679 A JP 5234679A JP 5234679 A JP5234679 A JP 5234679A JP S55144437 A JPS55144437 A JP S55144437A
Authority
JP
Japan
Prior art keywords
glass
optical fiber
heated
high temperature
modification
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
JP5234679A
Other languages
Japanese (ja)
Other versions
JPS603018B2 (en
Inventor
Atsushi Uchiumi
Masaharu Noguchi
Michio Nishioka
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.)
Dainichi Nippon Cables Ltd
Original Assignee
Dainichi Nippon Cables Ltd
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 Dainichi Nippon Cables Ltd filed Critical Dainichi Nippon Cables Ltd
Priority to JP5234679A priority Critical patent/JPS603018B2/en
Publication of JPS55144437A publication Critical patent/JPS55144437A/en
Publication of JPS603018B2 publication Critical patent/JPS603018B2/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B37/00Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
    • C03B37/01Manufacture of glass fibres or filaments
    • C03B37/012Manufacture of preforms for drawing fibres or filaments
    • C03B37/014Manufacture 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]
    • C03B37/018Manufacture 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] by glass deposition on a glass substrate, e.g. by inside-, modified-, plasma-, or plasma modified- chemical vapour deposition [ICVD, MCVD, PCVD, PMCVD], i.e. by thin layer coating on the inside or outside of a glass tube or on a glass rod
    • C03B37/01853Thermal after-treatment of preforms, e.g. dehydrating, consolidating, sintering

Abstract

PURPOSE:To effect good internal bonding by a method wherein a specified glass- surface modifier and oxygen gas are flowed on the internal surface of a silica-based glass tube heated to a high temperature so that the inner surface undergoes modification treatment. CONSTITUTION:Prior to internal bonding of layer which will become clad or core of optical fiber, glass surface modifier described below and oxygen gas are flowed inside a silica-based glass tube. At the same time, the glass tube is heated to a high temperature, preferably to a temperature at which its outer surface exceeds 1,000 deg.C so that the tube inner surface is treated for modification. The modifier is a material which, when heated to a high temperature in the presence of oxygen, produces no such material as having boiling point or sublimation point higher than that needed for internal bonding of layer to be formed into clad of optical fiber. Furthermore, such material must contain less than 1wt% of H2, elements producing glass-forming oxide and glass modification oxide, and one or more of elements such as halogens and sulfur. It is preferable to have the material contain one or more of F, B, and P as cpd.
JP5234679A 1979-04-26 1979-04-26 Manufacturing method of optical fiber base material Expired JPS603018B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5234679A JPS603018B2 (en) 1979-04-26 1979-04-26 Manufacturing method of optical fiber base material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5234679A JPS603018B2 (en) 1979-04-26 1979-04-26 Manufacturing method of optical fiber base material

Publications (2)

Publication Number Publication Date
JPS55144437A true JPS55144437A (en) 1980-11-11
JPS603018B2 JPS603018B2 (en) 1985-01-25

Family

ID=12912241

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5234679A Expired JPS603018B2 (en) 1979-04-26 1979-04-26 Manufacturing method of optical fiber base material

Country Status (1)

Country Link
JP (1) JPS603018B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539033A (en) * 1982-09-10 1985-09-03 British Telecommunications Method for drying oxide glasses
WO2000068718A1 (en) * 1999-05-07 2000-11-16 Corning Incorporated Chalcogenide doping of oxide glasses
US6542690B1 (en) 2000-05-08 2003-04-01 Corning Incorporated Chalcogenide doping of oxide glasses

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539033A (en) * 1982-09-10 1985-09-03 British Telecommunications Method for drying oxide glasses
WO2000068718A1 (en) * 1999-05-07 2000-11-16 Corning Incorporated Chalcogenide doping of oxide glasses
EP1183560A4 (en) * 1999-05-19 2006-06-07 Corning Inc Chalcogenide doping of oxide glasses
US6542690B1 (en) 2000-05-08 2003-04-01 Corning Incorporated Chalcogenide doping of oxide glasses

Also Published As

Publication number Publication date
JPS603018B2 (en) 1985-01-25

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