Miniaturized airborne laser illuminator capable of continuously emitting light for long time

The invention discloses a miniaturized airborne laser illuminator capable of continuously emitting light for a long time. The miniaturized airborne laser illuminator comprises an electric control integrated module and a laser photoelectric module; the electric control integrated module comprises a power supply assembly and a control assembly; in the laser optoelectronic module, the laser device employs LD pumping Nd: the YAG crystal is combined with a passive Q-switching technology to realize pulse laser output, the out-of-cavity wedge-shaped mirror finely adjusts the direction of laser emitted by the laser device; the light emitting detector triggers the control circuit to start timing by detecting diffuse reflection light of output laser; the emitting optical system expands the laser beam to a smaller beam divergence angle preset value; the receiving optical system collects a return light signal reflected back from a target and enables the return light signal to be imaged and converged on a photosensitive s