发明名称 |
Optical wave guides. |
摘要 |
<p>Glass fibre suitable for use as the core in fibre lasers and/or amplifiers has a core which consists of a continuous glass phase and a disperse phase of crystallites. The preferred crystallites are the oxides and phosphates of rare earth metals, eg Nd2O3 and NdP5O14. The small size concentration and distribution of the crystallites keeps the attenuation down to acceptable levels.</p> |
申请公布号 |
EP0294977(A1) |
申请公布日期 |
1988.12.14 |
申请号 |
EP19880304888 |
申请日期 |
1988.05.27 |
申请人 |
BRITISH TELECOMMUNICATIONS PUBLIC LIMITED COMPANY |
发明人 |
AINSLIE, BENJAMIN JAMES;CRAIG, SUSAN PATRICIA;DAVEY, STEVEN TERRENCE |
分类号 |
G02B6/00;C03C4/00;C03C4/12;C03C10/00;C03C13/04;G02F1/35;G02F1/355;H01S3/06;H01S3/17;(IPC1-7):C03C4/12 |
主分类号 |
G02B6/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|