Free-Space Optics Communications Employing Elliptical-Aperture Multimode Diversity Reception Under Anisotropic Turbulence
Journal article, 2022

We experimentally demonstrate an elliptical-aperture multimode diversity receiver to mitigate the impairment from anisotropic turbulence, which is emulated by employing an electrically-controlled heater. The anisotropy gradually decreases as the flow-level of the introduced airflow from fans increases. In contrast to circular-aperture reception, the elliptical-aperture multimode diversity receiver can effectively resist beam wander under anisotropic turbulence, reducing outage probability from 14.63% to 0.38% for detecting a dual-polarization 30-Gbaud QPSK signal. Without the aid of an adaptive optics system, this work demonstrates the feasibility of realizing an anisotropic-turbulence-resistant FSO link using multimode and multi-aperture diversity reception employing digital coherent combining techniques.

Wind speed

Anisotropic magnetoresistance



Optical wireless communication

Laser beams

Diversity reception

Coherent communication

Optical fiber networks

Atmospheric turbulence


Yetian Huang

Shanghai University

Hanzi Huang

Shanghai University

Haoshuo Chen


Juan Carlos Alvarado-Zacarias

University of Central Florida

Nicolas K. Fontaine


Qianwu Zhang

Shanghai University

Mikael Mazur

University of Central Florida

Roland Ryf


Rodrigo Amezcua-Correa

University of Central Florida

Yingxiong Song

Shanghai University

Yingchun Li

Shanghai University

Wang Min

Shanghai University

Journal of Lightwave Technology

0733-8724 (ISSN) 1558-2213 (eISSN)

Vol. 40 5 1502-1508

Subject Categories


Atom and Molecular Physics and Optics

Signal Processing



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