JPS575003A - Method for producing core and clad type optical fiber of polycrystalline ionic crystal - Google Patents

Method for producing core and clad type optical fiber of polycrystalline ionic crystal

Info

Publication number
JPS575003A
JPS575003A JP7948380A JP7948380A JPS575003A JP S575003 A JPS575003 A JP S575003A JP 7948380 A JP7948380 A JP 7948380A JP 7948380 A JP7948380 A JP 7948380A JP S575003 A JPS575003 A JP S575003A
Authority
JP
Japan
Prior art keywords
ionic crystal
polycrystalline
optical fiber
preform
clad
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
JP7948380A
Other languages
Japanese (ja)
Other versions
JPS6048722B2 (en
Inventor
Takao Shioda
Takeru Fukuda
Toshikatsu Sasagawa
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 JP55079483A priority Critical patent/JPS6048722B2/en
Publication of JPS575003A publication Critical patent/JPS575003A/en
Publication of JPS6048722B2 publication Critical patent/JPS6048722B2/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)

Abstract

PURPOSE:To lower the cost of production and to stabilize production by forming a polycrystalline preform of an ionic crystal consisting of a core and a clad, rolling this and producing an optical fiber. CONSTITUTION:A high refractive index ionic crystal for a core part is filled in an inner barrel 1, and a low refractive index ionic crystal for a clad part is filled in an outer barrel 2. While the barrels are being heated with heaters 5 near their respective outlets in such a manner that the temp. goes slightly lower than the m.p. of each ionic crystal, they are pressed by an inner ram 6 and an outer ram 7, thereby forming a polycrystalline preform 9 having rod-shaped core and clad construction. Thence, the preform 9 is heated to below the m.p. by heaters 21, pressure is applied thereto by a ram 22, and the preform is rolled by heated rolling rolls 23. This rolling operation is repeated a number of times while the diameter of the pass of the rolls is being gradually diminished, whereby the optical fiber of a desired diameter is obtained.
JP55079483A 1980-06-12 1980-06-12 Method for manufacturing polycrystalline core-clad ion crystal optical fiber Expired JPS6048722B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55079483A JPS6048722B2 (en) 1980-06-12 1980-06-12 Method for manufacturing polycrystalline core-clad ion crystal optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55079483A JPS6048722B2 (en) 1980-06-12 1980-06-12 Method for manufacturing polycrystalline core-clad ion crystal optical fiber

Publications (2)

Publication Number Publication Date
JPS575003A true JPS575003A (en) 1982-01-11
JPS6048722B2 JPS6048722B2 (en) 1985-10-29

Family

ID=13691136

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55079483A Expired JPS6048722B2 (en) 1980-06-12 1980-06-12 Method for manufacturing polycrystalline core-clad ion crystal optical fiber

Country Status (1)

Country Link
JP (1) JPS6048722B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6132914A (en) * 1984-07-26 1986-02-15 株式会社フジクラ Method of producing power cable
FR2626381A1 (en) * 1988-01-21 1989-07-28 Solvay OPTICAL GUIDE OF LIGHT
US5049175A (en) * 1982-11-02 1991-09-17 Heraeus Quarzschmelze Gmbh Method of manufacturing a glass body having a non-uniform refractive index
EP2095136B1 (en) * 2006-12-22 2014-04-30 ABB Research LTD Method for measuring high voltage and production of optical fiber used in said method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5049175A (en) * 1982-11-02 1991-09-17 Heraeus Quarzschmelze Gmbh Method of manufacturing a glass body having a non-uniform refractive index
JPS6132914A (en) * 1984-07-26 1986-02-15 株式会社フジクラ Method of producing power cable
FR2626381A1 (en) * 1988-01-21 1989-07-28 Solvay OPTICAL GUIDE OF LIGHT
BE1006001A3 (en) * 1988-01-21 1994-04-19 Solvay Optic light guide.
EP2095136B1 (en) * 2006-12-22 2014-04-30 ABB Research LTD Method for measuring high voltage and production of optical fiber used in said method

Also Published As

Publication number Publication date
JPS6048722B2 (en) 1985-10-29

Similar Documents

Publication Publication Date Title
ES8303717A1 (en) Method and apparatus for forming an optical waveguide preform and an optical waveguide.
AU587846B2 (en) Method of making low loss fiber optic coupler
EP0047640A3 (en) Inorganic monolithic hollow fibers, process for their production, and apparatus comprising them
JPS54101334A (en) Optical fiber coupling element and production of the same
ES8101275A1 (en) Method of substantially continuously forming an optical waveguide preform and an optical waveguide.
JPS575003A (en) Method for producing core and clad type optical fiber of polycrystalline ionic crystal
ES8605908A1 (en) Method of forming laminated single polarization fiber.
JPS5738331A (en) Manufacture of base material for multicore fiber
JPS55100233A (en) Production of optical fiber base material
EP0038949A1 (en) Glass-fibre to be used in light guides and method of manufacturing same
JPS5590431A (en) Preparation of single mode glass fiber
CA2077197A1 (en) Method of manufacturing an optical fibre
EP0100998A1 (en) Method of making a glass fibre with a radial refraction profile
JPS57205333A (en) Manufacture of single-polarization single-mode optical fiber
JPS5614441A (en) Manufacture of optical fiber base material
JPS51119237A (en) Manufacturing method of glass fiber for optical communication
JPS53124453A (en) Production of glass for optical transmission
JPS53124452A (en) Production of glass for optical transmission
JPS5556025A (en) Production of optical fiber
JPS55121406A (en) Production of step-index type optical fiber for infrared ray
JPS5617941A (en) Manufacture of optical fiber
JPS5372634A (en) Nozzle for production of optical fibers
JPS56149006A (en) Production of single polarization mode optical fiber
JPS57205331A (en) Manufacture of optical fiber containing ellipsoidal core
JPS53119056A (en) Production of optical fibers