发明名称 A METHOD OF FABRICATING PREFORMS FOR MAKING OPTICAL FIBERS BY DRAWING
摘要 Process for the manufacture of preforms for the production of optical fibres by drawing, in which a silica deposit, optionally containing an added doping agent, is formed by successive depositions inside a silica-based tube (1), from a vapour phase containing a gaseous silicon compound, oxygen and optionally a gaseous compound of an element doping the silica, and the tube is then subjected to a shrinking operation so as to make the hollow axial region disappear. …<??>The silica is then removed from the initial tube and a reloading (5) is then performed on the remaining cylinder (4) by plasma torch deposition from a gaseous phase comprising oxygen and a halogenated silica derivative. …<IMAGE>…
申请公布号 AU7376891(A) 申请公布日期 1991.10.03
申请号 AU19910073768 申请日期 1991.03.22
申请人 SOCIETE ANONYME DITE ALCATEL ALSTHOM COMPAGNIE GENERALE D'ELECT 发明人 CHRISTIAN LE SERGENT
分类号 C03B37/014;C03B37/018;G02B6/00 主分类号 C03B37/014
代理机构 代理人
主权项
地址