A tunable microwave pulse generator is proposed and demonstrated. In this study. a time-domain mode locked optoelectronic oscillator (OEO) is realized by utilizing a dual-parallel Mach-Zehnder modulator (DPMZM). One branch of the DPMZM is modulated by the feedback signal and another branch is modulated by an inject signal. https://vesaers.shop/product-category/face/