Universal photonic processor for spatial mode decomposition.

ABSTRACT: Efficient and precise information storage and processing using light's various degrees of freedom - intensity, phase, and polarization - have vast applications in modern photonics. The corresponding utilization necessitates the accurate measurement and decomposition of arbitrary spatial modes into their orthogonal components. In this paper, we introduce a new modal decomposition technique based on a 16-pixel reconfigurable photonic integrated circuit programmed as a spatial mode decomposer. This device uniquely identifies and quantifies the relative contributions of constituent modes in a Laguerre-Gaussian basis. The presented device not only provides the relative weights of these modes but also their relative phases, offering a novel approach based on an integrated platform for optical in

SUBMITTER: Sharma V 

PROVIDER: S-EPMC12381006 | biostudies-literature | 2025 Aug

REPOSITORIES: biostudies-literature