Demonstration of "Automatic" Turbulence Mitigation of 4 QPSK Channels in a Self-Coherent Free-Space Mode-Division-Multiplexed Link Using a Pilot Beam and Photodetector Array.

Huibin Zhou,Hao Song,Xinzhou Su,Yuxiang Duan,Kaiheng Zou,Runzhou Zhang,Moshe Tur,Alan E. Willner

OFC（2023）

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摘要

We experimentally demonstrate "automatic" turbulence mitigation of a self-coherent FSO MDM link with four 1-Gbaud QPSK channels using a transmitted pilot beam and PD array without power-splitting losses or detector-bandwidth sharing. Results show <3 -dB turbulence-induced penally, as compared to a >16 -dB penalty for a conventional LO-based MDM system.

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关键词

automatic turbulence mitigation,detector-bandwidth sharing,LO-based MDM system,PD array,photodetector array,power-splitting losses,QPSK channels,self-coherent free-space mode-division-multiplexed link,self-coherent FSO MDM link,transmitted pilot beam,turbulence-induced penalty

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