Independent dual beams generated by array element division in integrated optical phased arrays  

作　　者：Guihan Wu Yu Xin Lemeng Leng Xiang Ji Shichong Yang Kaifei Tang Quan Luo Hongsheng Luo Jinshan Su Wei Jiang 吴桂瀚;辛瑜;冷乐蒙;暨翔;杨石冲;汤凯飞;罗权;罗鸿声;苏金善;江伟(College of Engineering and Applied Sciences,Nanjing University,Nanjing 210023,China;National Laboratory of Solid-State Microstructures,Nanjing 210093,China;Key Laboratory of Intelligent Optical Sensing and Manipulation,Ministry of Education,Nanjing University,Nanjing 210023,China;Jiangsu Key Laboratory of Artificial Functional Materials,Nanjing University,Nanjing 210023,China;Key Laboratory of Vibration Signal Capture and Intelligent Processing,Yili Normal University,Ili 835000,China)

机构地区：[1]College of Engineering and Applied Sciences,Nanjing University,Nanjing 210023,China [2]National Laboratory of Solid-State Microstructures,Nanjing 210093,China [3]Key Laboratory of Intelligent Optical Sensing and Manipulation,Ministry of Education,Nanjing University,Nanjing 210023,China [4]Jiangsu Key Laboratory of Artificial Functional Materials,Nanjing University,Nanjing 210023,China [5]Key Laboratory of Vibration Signal Capture and Intelligent Processing,Yili Normal University,Ili 835000,China

出　　处：《Chinese Optics Letters》2024年第7期35-41,共7页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.62175103 and 62165015);the National Key Research and Development Program of China(No.2017YFA0303700).

摘　　要：Optical phased arrays(OPAs)have broad application prospects due to their advanced capability in beamforming and steering.In this work,we achieve independent dual beams in the far field by dividing the array elements of the OPA,with the maximum scanning range reaching 100°.Based on the working principle of OPAs,theoretical considerations of such multibeam generation are presented.A phase data allocation approach for OPAs in the presence of fabrication-induced random phase variation is developed.Simulations of large ensembles of OPAs with various levels of random residual phase errors have been conducted to help analyze the results.This approach can help OPAs realize multi-beams for light detection and ranging(LiDAR).

关 键 词：optical phased arrays BEAMFORMING phase error calibration array element division 

分 类 号：O43[机械工程—光学工程]