JPS6445738A - Production of optical fiber preform - Google Patents

Production of optical fiber preform

Info

Publication number
JPS6445738A
JPS6445738A JP20087387A JP20087387A JPS6445738A JP S6445738 A JPS6445738 A JP S6445738A JP 20087387 A JP20087387 A JP 20087387A JP 20087387 A JP20087387 A JP 20087387A JP S6445738 A JPS6445738 A JP S6445738A
Authority
JP
Japan
Prior art keywords
glass
nitrogen
rod
optical fiber
heat
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.)
Pending
Application number
JP20087387A
Other languages
Japanese (ja)
Inventor
Suehiro Miyamoto
Takao Shioda
Takeru Fukuda
Ryozo Yamauchi
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
Original Assignee
Fujikura 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 Fujikura Ltd filed Critical Fujikura Ltd
Priority to JP20087387A priority Critical patent/JPS6445738A/en
Publication of JPS6445738A publication Critical patent/JPS6445738A/en
Pending 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
    • C03B2201/20—Doped silica-based glasses doped with non-metals other than boron or fluorine
    • C03B2201/24—Doped silica-based glasses doped with non-metals other than boron or fluorine doped with nitrogen, e.g. silicon oxy-nitride glasses

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal 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)

Abstract

PURPOSE:To obtain an optical fiber having excellent corrosion resistance, by carrying out clarifying heat-treatment of a porous material in an atmosphere containing nitrogen and a reducing gas, thereby introducing nitrogen into the glass. CONSTITUTION:A porous material composed of glass soot is deposited on the outer circumference of a glass rod for light transmission. The rod is heat-treated in an atmosphere containing a nitrogen-containing gas and a reducing gas. The heat-treated rod is heated at a higher temperature to obtain transparent glass rod. The Si-O bond is broken, Si-H bond is increased and nitrogen is introduced into the glass by this treatment.
JP20087387A 1987-08-13 1987-08-13 Production of optical fiber preform Pending JPS6445738A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20087387A JPS6445738A (en) 1987-08-13 1987-08-13 Production of optical fiber preform

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20087387A JPS6445738A (en) 1987-08-13 1987-08-13 Production of optical fiber preform

Publications (1)

Publication Number Publication Date
JPS6445738A true JPS6445738A (en) 1989-02-20

Family

ID=16431655

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20087387A Pending JPS6445738A (en) 1987-08-13 1987-08-13 Production of optical fiber preform

Country Status (1)

Country Link
JP (1) JPS6445738A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0747327A1 (en) * 1995-06-07 1996-12-11 Corning Incorporated Method of thermally treating and consolidating silica preforms for reducing laser-induced optical damage in silica
KR100709317B1 (en) * 1999-08-11 2007-04-20 시그널 크리에이션, 아이엔씨 Salicylamide derivatives

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0747327A1 (en) * 1995-06-07 1996-12-11 Corning Incorporated Method of thermally treating and consolidating silica preforms for reducing laser-induced optical damage in silica
US5735921A (en) * 1995-06-07 1998-04-07 Corning Incorporated Method of reducing laser-induced optical damage in silica
KR100709317B1 (en) * 1999-08-11 2007-04-20 시그널 크리에이션, 아이엔씨 Salicylamide derivatives

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