用M-Z强度调制器产生四倍频微波信号的研究

The Study of Four-Octave-Frequency Microwave Signal by M-Z Modulator

理论分析与仿真研究了一种采用光学倍频法产生四倍频微波信号的方法.利用带通光滤波器在光域内对M-Z强度调制器已调光信号频谱进行挑选与裁剪,选择出±2倍频信号,并在光电探测器上外差产生4倍频微波信号.仿真结果证实了这种方法的可行性,获得了4倍频微波信号.

A method which can generate four-octave-frequency microwave signal by optical method is investigated theoretically in this paper. Two optical spectrum sections were filtered out with two pass-band optical filters from the output spectrum of two M-Z modulators, respectively, which carried ±2-octave-frequency signal. Then combining them and heterodyning at the optical detector,we can get the four-octave-frequency microwave signal. The simulation results show that the method is feasible and a four-octave frequency microwave signal can he obtained with this method.