کنفرانس مهندسی برق ایران

صفحه اصلی / سی و چهارمین کنفرانس بین المللی مهندسی برق

Multimode Optical Phased Array for Wide Field-of-View Beam Steering in Integrated LiDARs

نویسندگان :

Hossein Lameh Juybari¹ Maryam Salehi² Leila Yousefi³

1- University of Tehran 2- babol noshirvani university of technology 3- University of Tehran

کلمات کلیدی :

Optical phased array،silicon photonics،LiDAR،grating antenna،graphene switch،thermo‑optic phase shifter،MMI power splitter،Optical mode converter

چکیده :

Optical phased arrays (OPAs) have emerged as a promising platform for solid state beam steering in integrated LiDAR systems, offering stability, scalability, and compatibility with silicon photonics. However, conventional single mode OPA designs remain limited in steering range, restricting their applicability in wide Field of View (FoV) automotive LiDAR. This work presents the design and simulation of a multimode optical phased array architecture implemented on a silicon on insulator (SoI) platform. The system integrates key photonic components, including multimode interference power splitters, optical couplers, graphene based switches, mode converters, thermo optic phase shifters, and grating antennas. Each device is optimized to achieve low insertion loss, compact footprint, and fabrication tolerance, while multimode excitation is employed to extend the longitudinal steering dimension.