Experimental Demonstration of Adaptive-Optics-Based Turbulence Mitigation in a Mode-Multiplexed Free-Space Optical Link by Using both Radial and Azimuthal Spatial Indices

Xinzhou Su; Yuxiang Duan; Huibin Zhou; Hao Song; Kai Pang; Cong Liu; Kaiheng Zou; Runzhou Zhang; Haoqian Song; Nanzhe Hu; Moshe Tur; Alan E. Willner

doi:10.1364/OFC.2022.M4I.2

Optical Fiber Communication Conference (OFC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper M4I.2
•https://doi.org/10.1364/OFC.2022.M4I.2

Experimental Demonstration of Adaptive-Optics-Based Turbulence Mitigation in a Mode-Multiplexed Free-Space Optical Link by Using both Radial and Azimuthal Spatial Indices

Xinzhou Su, Yuxiang Duan, Huibin Zhou, Hao Song, Kai Pang, Cong Liu, Kaiheng Zou, Runzhou Zhang, Haoqian Song, Nanzhe Hu, Moshe Tur, and Alan E. Willner

Optical Fiber Communication Conference 2022

San Diego, California United States
6–10 March 2022
ISBN: 978-1-55752-466-9

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Free-space Optical Communications (M4I)

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X. Su, Y. Duan, H. Zhou, H. Song, K. Pang, C. Liu, K. Zou, R. Zhang, H. Song, N. Hu, M. Tur, and A. E. Willner, "Experimental Demonstration of Adaptive-Optics-Based Turbulence Mitigation in a Mode-Multiplexed Free-Space Optical Link by Using both Radial and Azimuthal Spatial Indices," in Optical Fiber Communication Conference (OFC) 2022, S. Matsuo, D. Plant, J. Shan Wey, C. Fludger, R. Ryf, and D. Simeonidou, eds., Technical Digest Series (Optica Publishing Group, 2022), paper M4I.2.

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Abstract

We experimentally demonstrate turbulence mitigation by adaptive optics for a 400-Gbit/s free-space link multiplexing four Laguerre Gaussian modes using both radial and azimuthal indices. The turbulence-induced power loss and crosstalk are reduced by ~10 dB and ~18 dB, respectively.

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