| 发明名称 |
DEVICE FOR MEASURING OPTICAL FREQUENCY MODULATION CHARACTERISTICS |
| 摘要 |
A frequency-modulated light signal is introduced into an input 12 of a Mach-Zehnder interferometer 1. The light signals at the outputs 17 and 18 are converted into electrical signals and subtracted, giving an output signal in which the effect of the frequency-modulation is not overwhelmed by the effect of amplitude-modulation of the input signal. |
| 申请公布号 |
EP0337796(A3) |
申请公布日期 |
1991.04.10 |
| 申请号 |
EP19890303703 |
申请日期 |
1989.04.14 |
| 申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
IWASHITA, KATSUSHI |
| 分类号 |
G01J9/02;G02F2/00;H04B10/158;(IPC1-7):G01J9/02;H04B9/00;G02F2/02 |
主分类号 |
G01J9/02 |
| 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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