JPS5494048A - Production of rod for optical fiber - Google Patents

Production of rod for optical fiber

Info

Publication number
JPS5494048A
JPS5494048A JP28178A JP28178A JPS5494048A JP S5494048 A JPS5494048 A JP S5494048A JP 28178 A JP28178 A JP 28178A JP 28178 A JP28178 A JP 28178A JP S5494048 A JPS5494048 A JP S5494048A
Authority
JP
Japan
Prior art keywords
quartz tube
uniform
maximums
gases
refractive index
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
JP28178A
Other languages
Japanese (ja)
Other versions
JPS581054B2 (en
Inventor
Hiroshi Yokota
Minoru Watanabe
Masaaki Yoshida
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP53000281A priority Critical patent/JPS581054B2/en
Publication of JPS5494048A publication Critical patent/JPS5494048A/en
Publication of JPS581054B2 publication Critical patent/JPS581054B2/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
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01225—Means for changing or stabilising the shape, e.g. diameter, of tubes or rods in general, e.g. collapsing
    • C03B37/01257—Heating devices therefor
    • 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
    • C03B37/01861—Means for changing or stabilising the diameter or form of tubes or rods
    • C03B37/01869—Collapsing

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To eliminate the thermal deformation of a quartz tube thereby to produce a material rod having a uniform diameter and a uniform refractive index distribution by holding the quartz tube such that its axial temperature distribution has at least two maximums. CONSTITUTION:An oxyhydrogen burner having two nozzle holes are supplied at its inner hole 1 with oxygen gases and at its outer hole 2 with hydrogen gases. If the burner is moved while being heated along a quartz tube, a portion of the oxygen gases coming from the inner hole 1 is blown directly onto the quartz tube, without being mixed with the hydrogen gases, so that it acts as a cooling gas. Thus, the temperature distribution having two maximums such as 1300 deg.C can be stably established with the use of the single heating source. Thus, it is possible to produce a material rod which has a uniform core diameter and a uniform refractive index distribution.
JP53000281A 1978-01-06 1978-01-06 Manufacturing method for optical fiber material rod Expired JPS581054B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53000281A JPS581054B2 (en) 1978-01-06 1978-01-06 Manufacturing method for optical fiber material rod

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53000281A JPS581054B2 (en) 1978-01-06 1978-01-06 Manufacturing method for optical fiber material rod

Publications (2)

Publication Number Publication Date
JPS5494048A true JPS5494048A (en) 1979-07-25
JPS581054B2 JPS581054B2 (en) 1983-01-10

Family

ID=11469511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53000281A Expired JPS581054B2 (en) 1978-01-06 1978-01-06 Manufacturing method for optical fiber material rod

Country Status (1)

Country Link
JP (1) JPS581054B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246348U (en) * 1975-09-30 1977-04-01

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5246348U (en) * 1975-09-30 1977-04-01

Also Published As

Publication number Publication date
JPS581054B2 (en) 1983-01-10

Similar Documents

Publication Publication Date Title
CA1199495A (en) Methods of and apparatus for heating a preform from which lightguide fiber is drawn
JPS5567533A (en) Production of glass base material for light transmission
KR920000634A (en) Selection method of optical fiber
US4259101A (en) Method for producing optical fiber preform
JPS5494048A (en) Production of rod for optical fiber
JPS54131043A (en) Production of preform for optical fiber
JPS57100928A (en) Burner for preparing base material for optical fiber
JPS5734034A (en) Dehydration treatment of porous preform for optical fiber
JPS5619008A (en) Optical fiber and its manufacture
JPS54134128A (en) Manufacture of basic material for light transmitting fiber
JPS5617936A (en) Manufacture of base material for optical fiber
GB793503A (en) A process for the manufacture of glasses having one or more components
JPS54142317A (en) Production of optical fibers
JPS5722135A (en) Production of parent material for single mode optical fiber
JPS5650130A (en) Manufacture of preform for optical transmission
JPS5669235A (en) Preparation of optical fiber
JPS5547237A (en) Production of glass base material for optical fiber
JPS5512948A (en) Light communication fiber and method of manufacturing the same
JPS55100234A (en) Production of optical transmission glass fiber base material
JPS57170830A (en) Manufacture of optical fiber containing ellipsoidal core
JPS5626739A (en) Manufacture of optical fiber base material
JPS5626741A (en) Manufacture of optical fiber base material
JPS55109239A (en) Production of glass base material for optical fiber
JPS5747736A (en) Manufacture of base material for optical fiber
JPH026347A (en) Drawing of optical fiber