Space laser communication coupling device based on optical power jitter distribution

The invention provides a spatial laser communication coupling device based on optical power jitter distribution. The spatial laser communication coupling device comprises a transmitter and a light beam pointing control module, wherein the transmitter comprises a laser transmitting module and a communication transmitting module, the laser transmitting module is used for transmitting space laser beams in Gaussian distribution and laser power, and the communication transmitting module is used for transmitting information data; the light beam pointing control module is used for controlling and adjusting light beam pointing; the receiving equipment comprises a receiver and a flicker variance statistics module; wherein the receiver comprises a photoelectric receiving module and a communication receiving module, the photoelectric receiving module is used for converting a received optical signal into an electric signal, and the communication receiving module is used for demodulating received information data; the fli