JPS5650132A - Manufacture of optical fiber - Google Patents

Manufacture of optical fiber

Info

Publication number
JPS5650132A
JPS5650132A JP12361279A JP12361279A JPS5650132A JP S5650132 A JPS5650132 A JP S5650132A JP 12361279 A JP12361279 A JP 12361279A JP 12361279 A JP12361279 A JP 12361279A JP S5650132 A JPS5650132 A JP S5650132A
Authority
JP
Japan
Prior art keywords
refractive index
threads
optical fiber
tube
glass
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
JP12361279A
Other languages
Japanese (ja)
Inventor
Shinichi Yonechi
Kozo Yoshimura
Hiroo Matsuda
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 JP12361279A priority Critical patent/JPS5650132A/en
Publication of JPS5650132A publication Critical patent/JPS5650132A/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
    • C03B37/01205—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments
    • C03B37/01211—Manufacture of preforms for drawing fibres or filaments starting from tubes, rods, fibres or filaments by inserting one or more rods or tubes into a tube
    • 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

  • 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)
  • Manufacture, Treatment Of Glass Fibers (AREA)

Abstract

PURPOSE:To easily manufacture an optical fiber having an arbitrary refractive index distribution by filling many glass threads different from each other in refractive index into a quartz tube by a predetermined arranging method followed by melt spinning. CONSTITUTION:For example, in the manufacture of an optical fiber having a refractive index change of graded type, glass threads 2 are densely filled into glass or quartz tube 1 so that threads 2 of highest refractive index are arranged at a central part and the refractive indexes are lowered toward the periphery. The resulting base material is then melt-spun into an optical fiber. Tube 1 is converted into the jacket of the fiber. By changing the arrangement of threads 2 different from each other in refractive index in tube 1, a glass fiber having an arbitrary refractive index distribution can be obtd. Threads 2 may be twisted in layers to make insertion into tube 1 easy.
JP12361279A 1979-09-25 1979-09-25 Manufacture of optical fiber Pending JPS5650132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12361279A JPS5650132A (en) 1979-09-25 1979-09-25 Manufacture of optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12361279A JPS5650132A (en) 1979-09-25 1979-09-25 Manufacture of optical fiber

Publications (1)

Publication Number Publication Date
JPS5650132A true JPS5650132A (en) 1981-05-07

Family

ID=14864902

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12361279A Pending JPS5650132A (en) 1979-09-25 1979-09-25 Manufacture of optical fiber

Country Status (1)

Country Link
JP (1) JPS5650132A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494493A (en) * 1983-05-12 1985-01-22 Fuji Jukogyo Kabushiki Kaisha Intake system for an automotive engine
US4545347A (en) * 1983-05-12 1985-10-08 Fuji Jukogyo Kabushiki Kaisha Intake system for an automotive engine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4494493A (en) * 1983-05-12 1985-01-22 Fuji Jukogyo Kabushiki Kaisha Intake system for an automotive engine
US4545347A (en) * 1983-05-12 1985-10-08 Fuji Jukogyo Kabushiki Kaisha Intake system for an automotive engine

Similar Documents

Publication Publication Date Title
AU587846B2 (en) Method of making low loss fiber optic coupler
JPS5521093A (en) Wideband gradient refractive index type filament and making preform therefor
KR910012761A (en) Optical parts doped with chlorine and manufacturing method thereof
JPS5352443A (en) Method of manufacturing optical fiber having refractive index gradient in radial direction
GB1303140A (en)
GB2019829A (en) Method of manufacturing graded index optical fibres
JPS5650132A (en) Manufacture of optical fiber
GB2043620B (en) Graded refractive index fibres and rods
JPS5533130A (en) Production of bandage type optical fiber
JPS566202A (en) Multicore fiber and its production
JPS57145043A (en) Production of optical fiber
JPS5782135A (en) Preparation of optical fiber
GB1466895A (en) Sheathed optical fibres
JPS5692502A (en) Production of optical fiber
JPS5397849A (en) Single mode optical fiber
JPS5781204A (en) Low-loss plastic optical fiber and its production
JPS54112217A (en) Production of optical fiber
JPS5697304A (en) Graded refractive index distribution type optical fiber
JPS54151629A (en) Production of optical fiber
JPS5614441A (en) Manufacture of optical fiber base material
JPS5392145A (en) Method of fabricating light transmission fiber bar mother material
JPS57140329A (en) Manufacture of base material for optical fiber
JPS5292735A (en) Producing method for base materials for optical transmission fibers
JPS54125727A (en) Production of optical fibers clad with polymer
CS190032B1 (en) Method of producing light-conducting fibre with varying refractive index