理论分析和实验验证了一种多倍频微波信号的光学产生方法。基于大信号相位调制和单模光纤的色散效应产生多个多倍频谐波，通过引入一个中心频率连续可调的单通带微波光子滤波器，实现了对单个倍频微波信号的提取。调节宽带光源的谱分割间隔可实现倍频微波信号调谐输出。在理论分析的基础上搭建了实验系统，利用5 GHz低频驱动信号得到了10 GHz和15 GHz的微波信号，其10 dB线宽为几十赫兹，功率波动为1 dB~2 dB。

An approach to generate a microwave signal with multiplication frequency is studied and verified theoretically and experimentally. Based on big signal phase modulation and the dispersion of a single-mode fiber, the high order of microwave harmonic signal is generated. A tunable single passband microwave photonic filter is used to select a specific harmonic signal by tuning the sliced space of broadband optical source. Based on the theoretic analysis, an experimental system is established, and the harmonic signals at 10 GHz and 15 GHz are produced by applying a low-frequency signal at 5 GHz. It can be seen the 10 dB bandwidth of the signal is a few tens hertz, and the power fluctuation is 1 dB～2 dB.