以下为句子列表：
英文: In this paper, the noise equivalant power (NEP) of optical heterodyne system has been measured with a method based on acousto-optici germanium' crystal modulator working at Bragg diffraction mode as a frequency shifting device in heterodyne system.
中文: 本文介绍了利用工作于Bragg衍射的Ge晶体声光调制器作为外差系统中的频移器来测量外差系统的噪声等效功率(NEP)的方法。
更详细...
|
