Separating arbitrary free-space beams with an integrated photonic processor.

ABSTRACT: Free-space optics naturally offers multiple-channel communications and sensing exploitable in many applications. The different optical beams will, however, generally be overlapping at the receiver, and, especially with atmospheric turbulence or other scattering or aberrations, the arriving beam shapes may not even be known in advance. We show that such beams can be still separated in the optical domain, and simultaneously detected with negligible cross-talk, even if they share the same wavelength and polarization, and even with unknown arriving beam shapes. The kernel of the adaptive multibeam receiver presented in this work is a programmable integrated photonic processor that is coupled to free-space beams through a two-dimensional array of optical antennas. We demonstrate separation of b

SUBMITTER: Milanizadeh M 

PROVIDER: S-EPMC9253306 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature