发明名称 |
Low coherent reflectometer |
摘要 |
A low coherent reflectometer uses low coherent beams for measurement of refletance and refleting positions with respect to a measured optical circuit which includes a reflecting point. The low coherent beams are branched to produce measurement beams (DL) and local beams (KL), so that the measurement beams are introduced into a first optical path, which includes a dispersion shifted fiber, towards the measured optical circuit, while the local beams are introduced into a second optical path which includes a spatial optical path terminated by a reflecting mirror. Refleted measurement beams (RL) and reflected local beams are combined together to produce combined beams, which are subjected to processing and analysis.
|
申请公布号 |
US6760110(B2) |
申请公布日期 |
2004.07.06 |
申请号 |
US20010982557 |
申请日期 |
2001.10.16 |
申请人 |
ANDO ELECTRIC CO., LTD.;NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
AOKI SYOICHI;YANO TETSUO;SENDA KENJI;TAKADA KAZUMASA |
分类号 |
G01N21/47;G01M11/00;H04B10/02;H04B10/04;H04B10/06;H04B10/08;H04B10/142;H04B10/152;H04B10/18;(IPC1-7):G01N21/55;G01B9/02;H04B10/12 |
主分类号 |
G01N21/47 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|