Laser communication receiving device with coaxial tracking, pointing and communication light

The invention discloses a laser communication receiving device with coaxial tracking, pointing and communication light, and belongs to the technical field of laser communication. In the prior art, the defects that the center of a light spot deviates or the light power is reduced exist. The invention provides a laser communication receiving device with coaxial tracking, pointing and communication light. The device is characterized by comprising a communication receiving detector, a conical reflector, a plurality of linear position sensitive detectors and a position signal processing unit, the detection plane of the linear position-sensitive detector and the detection plane of the communication receiving detector are separated and do not interfere with each other, so that coaxial receiving of tracking and aiming and communication light can be realized by adopting a common-caliber structure, the problems of sub-caliber receiving and light splitting loss are avoided, and meanwhile, the tracking and aiming alignme