JPS5751146A - Preparation of raw material for fluoride optical fiber - Google Patents

Preparation of raw material for fluoride optical fiber

Info

Publication number
JPS5751146A
JPS5751146A JP55124042A JP12404280A JPS5751146A JP S5751146 A JPS5751146 A JP S5751146A JP 55124042 A JP55124042 A JP 55124042A JP 12404280 A JP12404280 A JP 12404280A JP S5751146 A JPS5751146 A JP S5751146A
Authority
JP
Japan
Prior art keywords
raw material
fluoride
gases
carrier gas
cleaned
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
JP55124042A
Other languages
Japanese (ja)
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 JP55124042A priority Critical patent/JPS5751146A/en
Publication of JPS5751146A publication Critical patent/JPS5751146A/en
Pending 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
    • C03C3/00—Glass compositions
    • C03C3/32—Non-oxide glass compositions, e.g. binary or ternary halides, sulfides or nitrides of germanium, selenium or tellurium
    • C03C3/325—Fluoride glasses

Abstract

PURPOSE:To obtain a raw material for fluoride optical fibers of high purity efficiently, by gasifying and subliming various metallic compound under heating, and reacting the resultant gases with hydrogen fluoride gas in the vapor phase in the gaseous atmosphere of a cleaned carrier gas. CONSTITUTION:Metallic compounds, e.g. halides, carboxylate, alkyl compounds of one or more metals selected from alkali (earth) metals, lanthanoid elements, Zr, Bi, Al and lead, are filled into a raw material vessel, and evaporated or sublimed under heating. The gases of the metallic compounds are then introduced into a reactor, e.g. a fluororesin, by bubbling a carrier gas cleaned by the filtration into the metallic compounds, and hydrogen fluoride gas generated from ammonium fluoride or its hydrofluoride, is simultaneously introduced into the reator and reacted with the gases in the vapor phase in the atmosphere of the cleaned carrier gas to give the aimed raw material for fluoride optical fibers of high purity.
JP55124042A 1980-09-09 1980-09-09 Preparation of raw material for fluoride optical fiber Pending JPS5751146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55124042A JPS5751146A (en) 1980-09-09 1980-09-09 Preparation of raw material for fluoride optical fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55124042A JPS5751146A (en) 1980-09-09 1980-09-09 Preparation of raw material for fluoride optical fiber

Publications (1)

Publication Number Publication Date
JPS5751146A true JPS5751146A (en) 1982-03-25

Family

ID=14875566

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55124042A Pending JPS5751146A (en) 1980-09-09 1980-09-09 Preparation of raw material for fluoride optical fiber

Country Status (1)

Country Link
JP (1) JPS5751146A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501602A (en) * 1982-09-15 1985-02-26 Corning Glass Works Process for making sintered glasses and ceramics
JPS60146376A (en) * 1984-01-11 1985-08-02 Nec Corp Device for segmenting character
US4537864A (en) * 1983-08-31 1985-08-27 Corning Glass Works Metal fluoride glasses in the CdF2 -PbF2 -AlF3 -(LiF) system
JPS62279482A (en) * 1986-05-29 1987-12-04 Canon Inc Character recognizing device
US4718929A (en) * 1983-10-21 1988-01-12 Corning Glass Works Vapor phase method for making metal halide glasses
WO2003079062A1 (en) * 2002-03-18 2003-09-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optical element, method for the production thereof and for determining its optical properties

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4501602A (en) * 1982-09-15 1985-02-26 Corning Glass Works Process for making sintered glasses and ceramics
US4537864A (en) * 1983-08-31 1985-08-27 Corning Glass Works Metal fluoride glasses in the CdF2 -PbF2 -AlF3 -(LiF) system
US4718929A (en) * 1983-10-21 1988-01-12 Corning Glass Works Vapor phase method for making metal halide glasses
JPS60146376A (en) * 1984-01-11 1985-08-02 Nec Corp Device for segmenting character
JPS62279482A (en) * 1986-05-29 1987-12-04 Canon Inc Character recognizing device
WO2003079062A1 (en) * 2002-03-18 2003-09-25 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Optical element, method for the production thereof and for determining its optical properties

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