METHOD OF MANUFACTURING OPTICAL FIBER PREFORM AND METHOD OF MANUFACTURING OPTICAL FIBER

In a method of manufacturing an optical fiber preform, from a powder body containing an alkali metal component or an alkaline earth metal component and silica powder, the alkali metal or the alkaline earth metal is diffused into a silica glass tube through a heat treatment, the powder body that is n...

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Bibliographische Detailangaben
Hauptverfasser:	AISO, Keiichi, MUKASA, Kazunori, TAKEUCHI, Shugo, FUKUO, Osanobu
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY GLASS MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES METALLURGY MINERAL OR SLAG WOOL
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	In a method of manufacturing an optical fiber preform, from a powder body containing an alkali metal component or an alkaline earth metal component and silica powder, the alkali metal or the alkaline earth metal is diffused into a silica glass tube through a heat treatment, the powder body that is not fixed to the silica glass tube is removed from the silica glass tube, and a cladding portion is formed so as to surround an outer periphery of the silica glass tube.