The effect of turbulence on self-focusing, orbital-angular-momentum-carrying beams

Meilan Luo; Matias Koivurova; Marco Ornigotti; Chaoliang Ding

doi:10.1117/12.2612341

9 March 2022 The effect of turbulence on self-focusing, orbital-angular-momentum-carrying beams

Meilan Luo, Matias Koivurova, Marco Ornigotti, Chaoliang Ding

Proceedings Volume PC12017, Complex Light and Optical Forces XVI; PC120170I (2022) https://doi.org/10.1117/12.2612341
Event: SPIE OPTO, 2022, San Francisco, California, United States

Abstract

A significant limiting factor for orbital angular momentum (OAM) based free-space communication is the unavoidable signal degradation caused by atmospheric turbulence. Its main effect, in fact, is to induce crosstalk between the various OAM states, thus introducing additional noise and rendering the detection of different OAM states quite challenging. In this work, we consider partially coherent, self-focusing fields carrying OAM beams. We then compare their performance through turbulent atmosphere with that of perfectly coherent vortex beams. We show how the innate self-focusing character of partially coherent beams results in a better resilience against turbulence-induced noise than their coherent counterparts.

Conference Presentation

Citation Download Citation

Meilan Luo, Matias Koivurova, Marco Ornigotti, and Chaoliang Ding "The effect of turbulence on self-focusing, orbital-angular-momentum-carrying beams", Proc. SPIE PC12017, Complex Light and Optical Forces XVI, PC120170I (9 March 2022); https://doi.org/10.1117/12.2612341

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