JPS5696740A - Preparation of optical fiber matrix - Google Patents

Preparation of optical fiber matrix

Info

Publication number
JPS5696740A
JPS5696740A JP3480A JP3480A JPS5696740A JP S5696740 A JPS5696740 A JP S5696740A JP 3480 A JP3480 A JP 3480A JP 3480 A JP3480 A JP 3480A JP S5696740 A JPS5696740 A JP S5696740A
Authority
JP
Japan
Prior art keywords
torch
outer diameter
variation
matrix
porous matrix
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
JP3480A
Other languages
Japanese (ja)
Other versions
JPS6353138B2 (en
Inventor
Shoichi Sudo
Fumiaki Hanawa
Masao Kawachi
Takao Edahiro
Motohiro Nakahara
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 JP3480A priority Critical patent/JPS5696740A/en
Priority to US06/188,916 priority patent/US4367085A/en
Priority to CA000360818A priority patent/CA1164737A/en
Priority to DE19803036915 priority patent/DE3036915A1/en
Priority to GB8031821A priority patent/GB2059944B/en
Priority to NLAANVRAGE8005546,A priority patent/NL189814C/en
Priority to FR8021512A priority patent/FR2467180B1/en
Priority to IT25227/80A priority patent/IT1133839B/en
Publication of JPS5696740A publication Critical patent/JPS5696740A/en
Priority to GB08301030A priority patent/GB2128981B/en
Priority to GB08301031A priority patent/GB2128982B/en
Publication of JPS6353138B2 publication Critical patent/JPS6353138B2/ja
Granted 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]
    • C03B37/0144—Means for after-treatment or catching of worked reactant gases
    • 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]
    • 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]
    • C03B37/01413—Reactant delivery systems
    • C03B37/0142—Reactant deposition burners
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/22—Radial profile of refractive index, composition or softening point
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/22—Radial profile of refractive index, composition or softening point
    • C03B2203/24—Single mode [SM or monomode]
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/06—Concentric circular ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/10—Split ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/16—Non-circular ports, e.g. square or oval
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/04—Multi-nested ports
    • C03B2207/18—Eccentric ports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/20—Specific substances in specified ports, e.g. all gas flows specified
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/42—Assembly details; Material or dimensions of burner; Manifolds or supports
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/50—Multiple burner arrangements
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/60—Relationship between burner and deposit, e.g. position
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2207/00—Glass deposition burners
    • C03B2207/60—Relationship between burner and deposit, e.g. position
    • C03B2207/64—Angle

Abstract

PURPOSE:To prepare a round rod of porous glass matrix having lowered outer diameter variation, in high stability along the axial direction, by inclining the directions of a synthesis torch and the flame blasted from the torch against the rotational axis of the porous matrix. CONSTITUTION:Raw materials of glass and combustible gas are introduced to a synthesis torch 41, and subjected to hydrolysis reaction and thermoxidation reaction in the torch to form a porous matrix 43 composed of attached and deposited particles of synthetic glass. The variation of the outer diameter of the formed porous matrix 43 can be reduced by inclining the directions of the synthesis torch 41 and the center axis 45 of the flame 42 at an angle theta of 10-60 deg. against the rotational axis of the porous matrix 43. Since the porous matrix thus obtained has reduced variation of the outer diameter, the various characteristics of the optical fiber obtained by heating and defoaming the matrix 43, e.g. variation in the core/outer diameter ratio, transmission loss, bandwidth, etc. can be improved.
JP3480A 1979-10-09 1980-01-07 Preparation of optical fiber matrix Granted JPS5696740A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP3480A JPS5696740A (en) 1980-01-07 1980-01-07 Preparation of optical fiber matrix
US06/188,916 US4367085A (en) 1980-01-07 1980-09-19 Method of fabricating multi-mode optical fiber preforms
CA000360818A CA1164737A (en) 1980-01-07 1980-09-23 Fabrication method of a multi-mode optical fiber preform
DE19803036915 DE3036915A1 (en) 1979-10-09 1980-09-30 METHOD FOR PRODUCING BLANKS FOR LIGHT-GUIDE FIBERS
GB8031821A GB2059944B (en) 1979-10-09 1980-10-02 Fabrication method of optical fibre preforms
NLAANVRAGE8005546,A NL189814C (en) 1979-10-09 1980-10-07 METHOD FOR MANUFACTURING PROVISIONALLY FORMED OPTICAL FIBERS; NUCLEAR TORCH FOR MANUFACTURING PROVISIONALLY FORMED POROUS CORE WORKS.
FR8021512A FR2467180B1 (en) 1979-10-09 1980-10-08 METHOD FOR MANUFACTURING AN OPTICAL FIBER PREFORM AND CORE TORCH FOR MANUFACTURING POROUS PREFORMS
IT25227/80A IT1133839B (en) 1979-10-09 1980-10-09 PROCEDURE FOR THE MANUFACTURE OF PREFORMED FOR OPTICAL FIBERS
GB08301030A GB2128981B (en) 1979-10-09 1983-01-14 Fabrication method of optical fiber preforms
GB08301031A GB2128982B (en) 1979-10-09 1983-01-14 Fabrication method of optical fiber preforms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3480A JPS5696740A (en) 1980-01-07 1980-01-07 Preparation of optical fiber matrix

Publications (2)

Publication Number Publication Date
JPS5696740A true JPS5696740A (en) 1981-08-05
JPS6353138B2 JPS6353138B2 (en) 1988-10-21

Family

ID=11463055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3480A Granted JPS5696740A (en) 1979-10-09 1980-01-07 Preparation of optical fiber matrix

Country Status (1)

Country Link
JP (1) JPS5696740A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128227A (en) * 1983-01-12 1984-07-24 Hitachi Cable Ltd Manufacture of base material for optical fibre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59128227A (en) * 1983-01-12 1984-07-24 Hitachi Cable Ltd Manufacture of base material for optical fibre

Also Published As

Publication number Publication date
JPS6353138B2 (en) 1988-10-21

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