JPS5717440A - Manufacture of porous glass base material for single- polarization single-mode optical fiber - Google Patents

Manufacture of porous glass base material for single- polarization single-mode optical fiber

Info

Publication number
JPS5717440A
JPS5717440A JP9167580A JP9167580A JPS5717440A JP S5717440 A JPS5717440 A JP S5717440A JP 9167580 A JP9167580 A JP 9167580A JP 9167580 A JP9167580 A JP 9167580A JP S5717440 A JPS5717440 A JP S5717440A
Authority
JP
Japan
Prior art keywords
glass
sio2
inner core
burner
core part
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
JP9167580A
Other languages
Japanese (ja)
Other versions
JPS6344692B2 (en
Inventor
Tetsuo Miya
Yutaka Sasaki
Katsunari Okamoto
Takao Edahiro
Nobuo Inagaki
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 JP9167580A priority Critical patent/JPS5717440A/en
Publication of JPS5717440A publication Critical patent/JPS5717440A/en
Publication of JPS6344692B2 publication Critical patent/JPS6344692B2/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]
    • C03B37/01413—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
    • C03B2203/30—Polarisation maintaining [PM], i.e. birefringent products, e.g. with elliptical core, by use of stress rods, "PANDA" type fibres
    • 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

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)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

Abstract

PURPOSE:To eliminate a polishing process by forming a round rodlike inner core part and an outer core part having a specified shape and specified refractive indexes on the inner core part by a CVD method and further forming a clad part having a refractive index between the indexes of the core parts. CONSTITUTION:While rotating and pulling up a support rod 3 at a constant rate, gases shown by the figure are sprayed on the bottom of the rod 3 from a burner 11 for an inner core, and SiO2.GeO2 glass is deposited and grown by flame hydrolysis to form an inner core part 4 having a prescribed length. Gases shown by the figure are then sprayed as flames simultaneously from burners 12-15 arranged around the rod 3 perpendicularly to each other at a position just above the burner 11 at prescribed time intervals to grow outer cores 5, 7 of SiO2.GeO2 glass and outer cores 6, 8 of SiO2.B2O3 glass in the form of ridges at positions making 90 deg. angle. A clad part 9 of SiO2 glass is further formed to a prescribed thickness with a burner 16 to obtain a porous glass base material 10.
JP9167580A 1980-07-07 1980-07-07 Manufacture of porous glass base material for single- polarization single-mode optical fiber Granted JPS5717440A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9167580A JPS5717440A (en) 1980-07-07 1980-07-07 Manufacture of porous glass base material for single- polarization single-mode optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9167580A JPS5717440A (en) 1980-07-07 1980-07-07 Manufacture of porous glass base material for single- polarization single-mode optical fiber

Publications (2)

Publication Number Publication Date
JPS5717440A true JPS5717440A (en) 1982-01-29
JPS6344692B2 JPS6344692B2 (en) 1988-09-06

Family

ID=14033058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9167580A Granted JPS5717440A (en) 1980-07-07 1980-07-07 Manufacture of porous glass base material for single- polarization single-mode optical fiber

Country Status (1)

Country Link
JP (1) JPS5717440A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782133A (en) * 1980-11-11 1982-05-22 Nippon Telegr & Teleph Corp <Ntt> Preparation of single mode optical fiber of axis unsymmetry
EP0604785A1 (en) * 1992-12-28 1994-07-06 Corning Incorporated Method of making optical waveguide preforms

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5782133A (en) * 1980-11-11 1982-05-22 Nippon Telegr & Teleph Corp <Ntt> Preparation of single mode optical fiber of axis unsymmetry
JPS6220140B2 (en) * 1980-11-11 1987-05-06 Nippon Telegraph & Telephone
EP0604785A1 (en) * 1992-12-28 1994-07-06 Corning Incorporated Method of making optical waveguide preforms

Also Published As

Publication number Publication date
JPS6344692B2 (en) 1988-09-06

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