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

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外文摘要：Optical phased arrays[OPAs]have broad application prospects due to their advanced capability in beamforming and steer-ing.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 multi-beam 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].

外文关键词：

optical phased arraysbeamformingphase error calibrationarray element division

作者：

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

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作者单位：

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

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出版年：

2024

DOI：

10.3788/COL202422.071301

中国光学快报(英文版)

中国光学学会中国科学院上海光学精密机械研究所

中国光学快报(英文版)

CSTPCD

影响因子：1.305

ISSN：1671-7694

年,卷(期)：2024.22(7)