基于闪耀光栅的大视场快速捕获技术

his paper investigates the Acquisition, Tracking, and Pointing (ATP) technologies in free space Optical communication and proposes a method to enlarge the detection field of view by utilizing the spectral separation characteristic of a blazed grating. By forming an array of light spots on the detector with beacon lasers of different wavelengths, this method effectively broadens the field of view for the ATP acquisition system. Simulations and experiments have validated the feasibility of this approach. Experimental results show that under dual-wavelength testing (808nm and 850nm), the field of view was expanded by approximately 15.7 mrad. This technology holds potential application value in space laser communications.