Wide field of view optical phased array with a high-directionality antenna
Zheng Wang, Lei Yu, Yibo Yang, Pengfei Ma, Langlin Cui, Shuai Luo, Zhimin Ji, Zhigang Song, Yanmei Su, Jiaoqing Pan, Pengfei Wang, Yejin Zhang
Abstract
Light detection and ranging (LiDAR) is a widely utilized technology for extracting information from the outside world in fields such as automotive, robotics, and aerospace. Optical phased array (OPA) is a promising solution for LiDAR technology, although its application is limited by loss and alias-free steering range. In this paper, we propose a dual-layer antenna that achieves a peak directionality of over 92%, thereby mitigating antenna loss and enhancing power efficiency. Based on this antenna, we design and fabricate a 256-channel non-uniform OPA that achieves 150° alias-free steering.
Topics & Concepts
Phased arrayPhased-array opticsLidarAntenna (radio)Beam steeringOpticsRangingComputer scienceTelecommunicationsPhysicsPhotonic and Optical DevicesAdvanced Photonic Communication SystemsAdvanced Optical Sensing Technologies