A Miniaturized Space Laser Communication Terminal Optical System and Using Method

Abstract

The invention discloses a miniaturized space laser communication terminal optical system and a using method. The optical system cleverly arranges the telescope unit and the relay optical path unit in the space where the coordinate system is XYZ, and utilizes the functions of the telescope folding mirror in the telescope unit, the turntable folding mirror, and the relay folding mirror of the relay optical path unit. The three reflections constitute the two-dimensionally rotating pitch axis and azimuth axis, and the telescope unit realizes the pointing and aiming of the optical system by rotating around the pitch axis and the azimuth axis. In terms of spatial layout, the telescope unit is arranged above or below the relay optical path unit. By arranging the reflectors and beam splitters of the relay optical path unit, the optical devices in the relay optical path unit are distributed on both sides of the beam entrance, thereby compressing The size of the relay optical path is reduced, so that the projection envelope of the relay optical path on the XY plane is equivalent to that of the telephoto system, reducing the envelope size of the entire system and realizing a miniaturized design.

Description

technical field [0001] The invention relates to the field of space laser communication, in particular to a miniaturized space laser communication terminal optical system and a use method. Background technique [0002] Space laser communication terminals are installed on satellites and other aircraft to realize inter-satellite laser communication. The space laser communication terminal needs a two-dimensional rotating mechanism to realize space precision pointing, alignment and other functions. [0003] At present, the two-dimensional rotating optical system commonly used in space laser communication terminals has the following two methods: [0004] 1) Periscope type: the optical system is placed behind the two-dimensional rotating mechanism, and the two-dimensional shafting structure drives two mirrors to realize the pointing and aiming of the terminal. This form requires that the internal size of the shaft system be larger than the telescope aperture, and requires two lar...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the two-dimensional rotating optical system of the existing space laser communication terminal has a complex structure and is not conducive to miniaturization, the present invention proposes a miniaturized space laser communication terminal optical system with a two-dimensional rotating axis

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