The liquid crystal optical phased array,which has the ability of deflecting non-mechanical beam,can be applied to space laser communications acquisition-tracking system to realize fast,flexible,and multiple-user access.A fast-tracking method based on liquid crystal optical phased array is presented,and the method uses charge coupled device(CCD)as a beacon light detector.Proportional integral differentiation(PID)closed-loop control algorithm is used to generate beam angle of direction control point data.Agil...
2电子科技大学光电信息学院,四川成都610054;3电子科技大学物理电子学院,四川成都610054;4空间电子信息技术研究院,陕西西安710000;5东莞市迪文数字技术有限公司,广东东莞523808021202-1tracking accuracy is less than 6.5μrad.Experimental results show that after around