Laser-driven modulation circuit and system

The utility model relates to the field of laser processing, in particular to a laser-driven modulation circuit, which comprises a phase-shifting circuit module and a plurality of laser driving modules, the input end of the phase-shifting circuit module receives an external control signal, and the output ends of the phase-shifting circuit module are respectively connected with the corresponding laser driving modules; the phase shift circuit module outputs driving signals with phase difference from a plurality of output ends in sequence according to the control signal, and outputs the driving signals to each laser driving module; according to the utility model, phase shift processing is carried out on a driving signal, so that simultaneous light emission of multiple paths of lasers is realized under the condition of relatively small power-on current, the production cost is greatly reduced, the production efficiency is improved, furthermore, large fluctuation of the voltage of a power grid can be avoided, and th