发明名称 |
Förfarande för att producera en förform för en polarisationen upprätthållande optisk fiber |
摘要 |
A method of providing a preform for a polarization-maintaining optical fiber, starting from a basic preform (1) having two orthogonal planes of symmetry intersecting along its axis, and mechanically applying two discrete preformed oblong elements (15) of silica doped with boron oxide on the outside face of said basic preform symmetrically about the first plane (20), and two oblong elements of silica doped with titanium oxide on the outside face of said basic preform and symmetrically about the second plane (30). The shapes of the basic preform and the four oblong elements are selected to define a substantially solid cylinder. |
申请公布号 |
FI96453(B) |
申请公布日期 |
1996.03.15 |
申请号 |
FI19890005883 |
申请日期 |
1989.12.08 |
申请人 |
ALCATEL N.V. |
发明人 |
BREHM, CLAUDE;RAMOS, JOSIANE;DUPONT, PHILIPPE |
分类号 |
G02B6/00;C03B37/012;C03B37/018;C03C13/04;G02B6/024;(IPC1-7):G02B6/44;G02B6/17 |
主分类号 |
G02B6/00 |
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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