JPS5727936A - Manufacture of base material for optical fiber - Google Patents

Manufacture of base material for optical fiber

Info

Publication number
JPS5727936A
JPS5727936A JP10306280A JP10306280A JPS5727936A JP S5727936 A JPS5727936 A JP S5727936A JP 10306280 A JP10306280 A JP 10306280A JP 10306280 A JP10306280 A JP 10306280A JP S5727936 A JPS5727936 A JP S5727936A
Authority
JP
Japan
Prior art keywords
tube
sio2
thin film
deposit
optical fiber
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
JP10306280A
Other languages
Japanese (ja)
Other versions
JPS6047216B2 (en
Inventor
Toshito Hosaka
Katsunari Okamoto
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 JP55103062A priority Critical patent/JPS6047216B2/en
Publication of JPS5727936A publication Critical patent/JPS5727936A/en
Publication of JPS6047216B2 publication Critical patent/JPS6047216B2/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]
    • C03B37/018—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] 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
    • C03B37/01884—Means for supporting, rotating and translating tubes or rods being formed, e.g. lathes
    • 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]
    • C03B37/018—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] 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
    • C03B37/01807—Reactant delivery systems, e.g. 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
    • C03B2203/30—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres

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

Abstract

PURPOSE:To obtain an axially asymmetric type base material for an optical fiber with low loss and high dimensional accuracy by stopping the rotation of a glass tube and uniformly depositing glass layers having a prescribed refractive index on opposite both sides alone of the inner wall of the tube in the longitudinal direction. CONSTITUTION:SiCl4 is fed from a section 1 feeding gaseous starting material together with O2, and by heating to about 1,600 deg.C with a heating source 5 oxidation is caused to deposit a thin film of SiO2 on the inner wall of a glass tube 3. The rotation of the tube 3 is stopped, and SiCl4 and BBr3 are fed and heated to about 1,250 deg.C to locally deposit a thin film of SiO2+B2O3 having a lower refractive index than SiO2 on the lower side alone of the tube 3. After rotating the tube 3 on its axis by 180 deg. and stopping the rotation, a thin film of SiO2+B2O3 is deposited similarly. In order to deposit a core, SiCl4, GeCl4 and PCl3 are then fed together with O2 while rotating the tube 3, and they are heated to about 1,250 deg.C to deposit a thin film of SiO2+GeO2+P2O5. Finally, the films are made solid by heating to about 1,900 deg.C to obtain a base material for an optical fiber.
JP55103062A 1980-07-29 1980-07-29 Method for producing base material for optical fiber Expired JPS6047216B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55103062A JPS6047216B2 (en) 1980-07-29 1980-07-29 Method for producing base material for optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55103062A JPS6047216B2 (en) 1980-07-29 1980-07-29 Method for producing base material for optical fiber

Publications (2)

Publication Number Publication Date
JPS5727936A true JPS5727936A (en) 1982-02-15
JPS6047216B2 JPS6047216B2 (en) 1985-10-21

Family

ID=14344178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55103062A Expired JPS6047216B2 (en) 1980-07-29 1980-07-29 Method for producing base material for optical fiber

Country Status (1)

Country Link
JP (1) JPS6047216B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528009A (en) * 1983-06-01 1985-07-09 Corning Glass Works Method of forming optical fiber having laminated core
JPS61269097A (en) * 1985-05-24 1986-11-28 中部電力株式会社 Decontaminating method of radioactive contaminant
FR2649690A1 (en) * 1989-07-11 1991-01-18 Comp Generale Electricite PROCESS FOR PRODUCING PREFORMS FOR OPTICAL FIBERS WITHOUT REVOLUTION SYMMETRY

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4528009A (en) * 1983-06-01 1985-07-09 Corning Glass Works Method of forming optical fiber having laminated core
JPS61269097A (en) * 1985-05-24 1986-11-28 中部電力株式会社 Decontaminating method of radioactive contaminant
FR2649690A1 (en) * 1989-07-11 1991-01-18 Comp Generale Electricite PROCESS FOR PRODUCING PREFORMS FOR OPTICAL FIBERS WITHOUT REVOLUTION SYMMETRY

Also Published As

Publication number Publication date
JPS6047216B2 (en) 1985-10-21

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