JPS569236A - Manufacture of optical fiber - Google Patents

Manufacture of optical fiber

Info

Publication number
JPS569236A
JPS569236A JP8381179A JP8381179A JPS569236A JP S569236 A JPS569236 A JP S569236A JP 8381179 A JP8381179 A JP 8381179A JP 8381179 A JP8381179 A JP 8381179A JP S569236 A JPS569236 A JP S569236A
Authority
JP
Japan
Prior art keywords
pipe
glass
optical fiber
periodically
collapsing
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
JP8381179A
Other languages
Japanese (ja)
Inventor
Koji Okamura
Takashi Toge
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8381179A priority Critical patent/JPS569236A/en
Publication of JPS569236A publication Critical patent/JPS569236A/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]
    • C03B37/018—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
    • C03B37/01815—Reactant deposition burners or deposition heating means
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/18—Axial perturbations, e.g. in refractive index or composition
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B2203/00—Fibre product details, e.g. structure, shape
    • C03B2203/10—Internal structure or shape details
    • C03B2203/22—Radial profile of refractive index, composition or softening point
    • C03B2203/26—Parabolic or graded index [GRIN] core profile

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)

Abstract

PURPOSE:To obtain an optical fiber having a refractive index distribution factor which changes periodically in the logitudinal direction by periodically changing heating source moving speed in the axial direction of a glass pipe when glass is formed in the pipe by a CVD method, collapsing the pipe to fill its hole, and drawing the collapsed pipe. CONSTITUTION:When vapor of glass starting material such as SiCl4 is introduced into rotating quartz pipe 7 and heated with oxyhydrogen burner 9 from the outside of pipe 7 to form glass by gaseous phase chemical reaction, moving speed of heating source to pipe 7 is periodically changed in the axial direction of pipe 7 through burner moving mechanism 11 to change the thickness of a glass deposit layer. A process of collapsing pipe 7 to fill its hole and a drawing process are then carried out to obtain a wide-band optical fiber whose refractive index distribution factor changes periodically in the longitudinal direction without requiring the complex processes of a conventional method.
JP8381179A 1979-06-29 1979-06-29 Manufacture of optical fiber Pending JPS569236A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8381179A JPS569236A (en) 1979-06-29 1979-06-29 Manufacture of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8381179A JPS569236A (en) 1979-06-29 1979-06-29 Manufacture of optical fiber

Publications (1)

Publication Number Publication Date
JPS569236A true JPS569236A (en) 1981-01-30

Family

ID=13813044

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8381179A Pending JPS569236A (en) 1979-06-29 1979-06-29 Manufacture of optical fiber

Country Status (1)

Country Link
JP (1) JPS569236A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303318A (en) * 1991-11-01 1994-04-12 Nippon Telegraph & Telephone Corporation High power acceptable optical fiber and fabrication method thereof
EP1116697A2 (en) * 2000-01-14 2001-07-18 Samsung Electronics Co., Ltd. Preform for dispersion-managed optical fibre and method of fabricating the preform by modified chemical vapour deposition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303318A (en) * 1991-11-01 1994-04-12 Nippon Telegraph & Telephone Corporation High power acceptable optical fiber and fabrication method thereof
EP1116697A2 (en) * 2000-01-14 2001-07-18 Samsung Electronics Co., Ltd. Preform for dispersion-managed optical fibre and method of fabricating the preform by modified chemical vapour deposition
EP1116697A3 (en) * 2000-01-14 2002-06-26 Samsung Electronics Co., Ltd. Preform for dispersion-managed optical fibre and method of fabricating the preform by modified chemical vapour deposition
US6523368B2 (en) 2000-01-14 2003-02-25 Samsung Electronics Co., Ltd Dispersion-managed fiber preform and fabricating method thereof by MCVD

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