Mode power spectrum for Laguerre–Gauss beams in Kolmogorov turbulence

We analyze the effects of atmospheric turbulence on the mode power spectrum of beams carrying orbital angular momentum represented by Laguerre–Gauss (LG) modes. For an input (0, m ) LG mode, we calculate the power transferred to other modes (0, m ’) due to turbulence. The analysis is validated again...

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Published in:Optics letters 2022-07, Vol.47 (14), p.3447-3450
Main Authors: Elder, Henry F., Sprangle, Phillip
Format: Article
Language:English
Subjects:
Angular momentum
Atmospheric turbulence
Communications systems
Gaussian beams (optics)
Optical communication
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description We analyze the effects of atmospheric turbulence on the mode power spectrum of beams carrying orbital angular momentum represented by Laguerre–Gauss (LG) modes. For an input (0, m ) LG mode, we calculate the power transferred to other modes (0, m ’) due to turbulence. The analysis is validated against split-step beam propagation simulations and shows agreement into the strong turbulence regime. These results have applications for the design and characterization of free-space laser communication systems.
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source Jisc-Optica Publishing Group Read & Publish Agreement 2022-2024 – E Combination 1
subjects Angular momentum
Atmospheric turbulence
Communications systems
Gaussian beams (optics)
Optical communication
title Mode power spectrum for Laguerre–Gauss beams in Kolmogorov turbulence
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