Integrated optical phased arrays with circular architecture on a silicon platform Daniel Benedikovic, Qiankun Liu, Alejandro Sanchez-Postigo, Ahmad Atieh, Tom Smy, Pavel Cheben and Winnie N. Ye EPJ Web Conf., 266 (2022) 01002 Published online: 13 October 2022 DOI: 10.1051/epjconf/202226601002