星间激光通信信标跟踪无焦光学系统设计

The Design of Afocal Optical System of Beacon Tracking System in Inter-satellite Laser Communication

针对星间激光通信的特点,通过无焦光学系统的入瞳、出瞳比例的设计,有效控制四象限探测器光斑尺寸,研制了小型粗精信标跟踪光学系统。对畸变、点列图、足迹图、能量集中度等系统性能进行了评价,表明无焦光学系统可用于信标跟踪探测。

A kind of designing method of the beacon optical system is presented. It is according to feature of the inter-satellite laser communication, and by adjusting the ratio between the entrance and exit pupils of the afocal system, and controlling spot size on the fourquadrant detector to be obtained. The optical distortion, spot diagram and encircled energy are analyzed and evaluated, it is demonstrated that the afocal system can be applied in the beacon systems for tracking detection.