| 发明名称 |
OPTICAL PATH TESTING SYSTEM |
| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an optical path testing system capable of an in-service test in L-band communication of 10 Gbit/s. <P>SOLUTION: A dielectric multilayer film type filter (band-pass filter) 22 for transmitting test light and suppressing a side mode of the test light is installed on a test light output route of a test light source 20. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
| 申请公布号 |
JP2004245767(A) |
申请公布日期 |
2004.09.02 |
| 申请号 |
JP20030037911 |
申请日期 |
2003.02.17 |
| 申请人 |
NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
HONDA NAGETSU;ARAKI NORIYUKI;ENOMOTO YOSHITAKA;IZUMIDA CHIKASHI |
| 分类号 |
G01M11/00;H04B10/07;H04B10/071;H04B10/077 |
主分类号 |
G01M11/00 |
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