Design and analysis of an ultra-wide-angle laser communication optical system

Abstract

With the development of information networks and laser communication technology, the coverage communication form of inter-satellite networks has become crucial. In order to solve the problems of a small communication field of view and difficult integration, an optical system design method for network laser communication is proposed. Based on the ultra-wide-angle system, the non-similar imaging principle is used to realize the design of a large field of view omnidirectional optical antenna, and the communication link of the antenna is analyzed accordingly. The results show that the communication field of view of the antenna can reach 130°, and the beam divergence angle increases from 420 to 2000 µrad in this range, which can realize long-distance laser communication with a communication rate of 5 Gbps. The design method proposed in this paper provides a new design idea for the development of a laser communication optical antenna, which has great application potential in the field of inter-satellite laser communication networking.