“…Its unique property in the frequency and time domains brings revolutionary development in the fields of precision spectroscopy [ 3 , 4 , 5 ], optical communication [ 6 , 7 ], waveform synthesis [ 8 , 9 , 10 ], and precision metrology [ 11 , 12 , 13 ] etc. Compared to the OFC generation schemes based on mode-locked lasers [ 14 , 15 , 16 ] and micro-resonator lasers [ 17 , 18 ], the electro-optic modulators (EOMs)-based OFC generators have some unique advantages [ 19 , 20 ]. OFCs with a high repetition rate up to tens of GHz can be conveniently obtained with a robust and compact setup.…”