JPH0348144B2 - - Google Patents

Info

Publication number
JPH0348144B2
JPH0348144B2 JP57202581A JP20258182A JPH0348144B2 JP H0348144 B2 JPH0348144 B2 JP H0348144B2 JP 57202581 A JP57202581 A JP 57202581A JP 20258182 A JP20258182 A JP 20258182A JP H0348144 B2 JPH0348144 B2 JP H0348144B2
Authority
JP
Japan
Prior art keywords
gel
glass tube
silica glass
optical fiber
polarization
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.)
Expired - Lifetime
Application number
JP57202581A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5992935A (ja
Inventor
Masaaki Kato
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP57202581A priority Critical patent/JPS5992935A/ja
Publication of JPS5992935A publication Critical patent/JPS5992935A/ja
Publication of JPH0348144B2 publication Critical patent/JPH0348144B2/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
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02754—Solid fibres drawn from hollow preforms
    • 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
    • C03B37/02—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor
    • C03B37/025—Manufacture of glass fibres or filaments by drawing or extruding, e.g. direct drawing of molten glass from nozzles; Cooling fins therefor from reheated softened tubes, rods, fibres or filaments, e.g. drawing fibres from preforms
    • C03B37/027—Fibres composed of different sorts of glass, e.g. glass optical fibres
    • C03B37/02709—Polarisation maintaining fibres, e.g. PM, PANDA, bi-refringent optical fibres
    • 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
    • C03B2201/08—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant
    • C03B2201/10—Doped silica-based glasses doped with boron or fluorine or other refractive index decreasing dopant doped with boron
    • 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
    • C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
    • C03B2201/31—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with germanium
    • 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
    • C03B2205/00—Fibre drawing or extruding details
    • C03B2205/12—Drawing solid optical fibre directly from a hollow preform
    • C03B2205/14—Drawing solid optical fibre directly from a hollow preform comprising collapse of an outer tube onto an inner central solid preform rod

Landscapes

  • Engineering & Computer Science (AREA)
  • 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)
JP57202581A 1982-11-18 1982-11-18 偏波面保存光フアイバの製造方法 Granted JPS5992935A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57202581A JPS5992935A (ja) 1982-11-18 1982-11-18 偏波面保存光フアイバの製造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57202581A JPS5992935A (ja) 1982-11-18 1982-11-18 偏波面保存光フアイバの製造方法

Publications (2)

Publication Number Publication Date
JPS5992935A JPS5992935A (ja) 1984-05-29
JPH0348144B2 true JPH0348144B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-07-23

Family

ID=16459853

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57202581A Granted JPS5992935A (ja) 1982-11-18 1982-11-18 偏波面保存光フアイバの製造方法

Country Status (1)

Country Link
JP (1) JPS5992935A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1324330C (zh) 2001-05-09 2007-07-04 浜松光子学株式会社 光学透镜母材、光学透镜以及光学透镜的制造方法
US6947226B2 (en) 2001-05-09 2005-09-20 Hamamatsu Photonics K.K. Optical lens-use base material, optical lens, and method of producing optical lens
WO2002091036A1 (en) 2001-05-09 2002-11-14 Hamamatsu Photonics K.K. Optical lens base material, optical lens, and method of producing optical lens
JP4191493B2 (ja) 2001-05-09 2008-12-03 浜松ホトニクス株式会社 光学レンズの製造方法
US6801369B2 (en) 2001-05-09 2004-10-05 Hamamatsu Photonics K.K. Preform for an optical lens, an optical lens, and a method of manufacturing an optical lens

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54116425A (en) * 1978-02-22 1979-09-10 Hitachi Cable Ltd Production of optical fiber
JPS5624306A (en) * 1979-08-03 1981-03-07 Sumitomo Electric Ind Ltd Production of optical fiber having elliptical core
JPS5795842A (en) * 1980-12-05 1982-06-14 Hitachi Cable Ltd Manufacture of graded type optical fiber

Also Published As

Publication number Publication date
JPS5992935A (ja) 1984-05-29

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