JPS5738344A - Preform for optical fiber transmitting infrared ray - Google Patents

Preform for optical fiber transmitting infrared ray

Info

Publication number
JPS5738344A
JPS5738344A JP11175680A JP11175680A JPS5738344A JP S5738344 A JPS5738344 A JP S5738344A JP 11175680 A JP11175680 A JP 11175680A JP 11175680 A JP11175680 A JP 11175680A JP S5738344 A JPS5738344 A JP S5738344A
Authority
JP
Japan
Prior art keywords
glass
clad
prepare
preform
core
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
JP11175680A
Other languages
Japanese (ja)
Other versions
JPH0116781B2 (en
Inventor
Nariyuki Mitachi
Toyotaka Manabe
Shuichi Shibata
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP11175680A priority Critical patent/JPS5738344A/en
Publication of JPS5738344A publication Critical patent/JPS5738344A/en
Publication of JPH0116781B2 publication Critical patent/JPH0116781B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C13/00—Fibre or filament compositions
    • C03C13/04—Fibre optics, e.g. core and clad fibre compositions
    • C03C13/041—Non-oxide glass compositions
    • C03C13/042—Fluoride glass compositions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Glass Compositions (AREA)

Abstract

PURPOSE:To provide a preform for a low loss optical fiber capable of transmitting infrared rays in the wavelength zone of 2-6mum by doping matrix glass with PbF2 or BiF3 to prepare the core and by doping the matrix glass with LiF, NaF or AlF3 to prepare the clad. CONSTITUTION:Glass having a composition consisting of 28-38mol% BaF2, 0- 7mol% GdF3 and 58-69mol% ZrF4 is used as matrix glass. To prepare glass for a core 100mol% said matrix glass is blended with <=6mol% PbF2 or <=16mol% BiF3 as a dopant, and to prepare glass for a clad 100mol% said matrix glass is blended with <=24mol% LiF, <=12mol% NaF or <=8mol% AlF3 as a dopant. A rod made of said core glass is put in a pipe made of said clad glass, and the clad glass is melted, put closely together to the core rod, maintained at a temp. below the glass transition temp., and slowly cooled to obtain a preform.
JP11175680A 1980-08-15 1980-08-15 Preform for optical fiber transmitting infrared ray Granted JPS5738344A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11175680A JPS5738344A (en) 1980-08-15 1980-08-15 Preform for optical fiber transmitting infrared ray

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11175680A JPS5738344A (en) 1980-08-15 1980-08-15 Preform for optical fiber transmitting infrared ray

Publications (2)

Publication Number Publication Date
JPS5738344A true JPS5738344A (en) 1982-03-03
JPH0116781B2 JPH0116781B2 (en) 1989-03-27

Family

ID=14569385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11175680A Granted JPS5738344A (en) 1980-08-15 1980-08-15 Preform for optical fiber transmitting infrared ray

Country Status (1)

Country Link
JP (1) JPS5738344A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158833A (en) * 1984-08-31 1986-03-26 Nippon Telegr & Teleph Corp <Ntt> Radiation dosimeter glass

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137611A (en) * 1974-09-27 1976-03-30 Tokyo Shibaura Electric Co Jikiteepusochi no eraakenshutsuhoshiki

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5137611A (en) * 1974-09-27 1976-03-30 Tokyo Shibaura Electric Co Jikiteepusochi no eraakenshutsuhoshiki

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158833A (en) * 1984-08-31 1986-03-26 Nippon Telegr & Teleph Corp <Ntt> Radiation dosimeter glass

Also Published As

Publication number Publication date
JPH0116781B2 (en) 1989-03-27

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