Compact 2D serpentine optical phased array

Yangming Ren,Lingxuan Zhang,Wei Zhao,Guoxi Wang,NingNing Feng,Wei Wu,Xiaochen Sun,Wenfu Zhang

APPLIED OPTICS（2021）

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Abstract

We present a two-dimensional (2D) Si photonics optical phased array (OPA) using a serpentine design which eliminates the long directional couplers used in many 2D OPA designs. It significantly reduces the distance between the antenna benefitting far-field sidelobe reduction while maintaining high optical power use efficiency. (C) 2021 Optical Society of America

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