发明名称 |
Process for reducing the hydroxyl-group content in preforms for optical fibres manufactured by MCVD process. |
摘要 |
<p>Process for reducing hydroxyl-group content in preforms for optical fibres, manufactured by MCVD process, consisting of isotopic exchange between hydrogen and deuterium near the internal walls of the silica-glass supporting tube (8). The operation is carried out in two steps, first by inducing deuterium adsorption and then by termally activating the exchange reaction.</p> |
申请公布号 |
EP0042135(A1) |
申请公布日期 |
1981.12.23 |
申请号 |
EP19810104458 |
申请日期 |
1981.06.11 |
申请人 |
CSELT CENTRO STUDI E LABORATORI TELECOMUNICAZIONI S.P.A. |
发明人 |
MODONE, EROS;ROBA, GIACOMO |
分类号 |
C03B37/00;C03B37/018;C03C13/04;C03C21/00;G02B6/00;(IPC1-7):03B37/025;03C13/00 |
主分类号 |
C03B37/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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