Double-layer silicon-based optical phased array transceiver based on cascaded phase control.

ABSTRACT: Light detection and ranging (LiDAR) is of central importance for modern artificial intelligence (AI) assisted automated intelligent optical devices. Silicon-based optical phased arrays (OPAs) have attracted widespread attention due to their rapid and efficient scanning capabilities. However, the complex waveguide routing structure has limited the spacing between elements of traditional two-dimensional (2D) OPAs, limiting the achievable angle range of 2D scanning. The traditional planar architecture struggles to meet high-density integration demands. Transitioning to the third dimension to leverage spatial degrees of freedom represents the only viable path toward future ultra-high integration. Consequently, we present a dual-layer optical phased array design employing a hierarchical archite

SUBMITTER: Zhang Y 

PROVIDER: S-EPMC12528711 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature