Limited-size aperture effects in an orbital-angular-momentum-multiplexed free-space optical data link between a ground station and a retro-reflecting UAV

Long Li, Runzhou Zhang, Peicheng Liao, Hao Song, Kaiheng Zou, Guodong Xie, Zhe Zhao, Cong Liu, Haoqian Song, Kai Pang, Ari N. Willner, Ahmed Almaiman, Dmitry Starodubov, Brittany Lynn, Robert Bock, Moshe Tur, Alan E. Willner

Research output: Contribution to journalArticlepeer-review

Abstract

In this letter, we experimentally explore the limited-size aperture effects in an orbital-angular-momentum (OAM)-multiplexed free-space optical (FSO) data link for aerial platforms. 200-Gbit/s data transmission is demonstrated between a ground transmitter and a ground receiver via a flying, retro-reflecting unmanned-aerial-vehicle (UAV) over 100-m round-trip distance by multiplexing two OAM beams. Our results indicate that when the receiver aperture size is limited, both power loss and channel crosstalk would increase. With a receiver aperture diameter of >5 cm, bit error rate (BER) mostly below 3.8×10−3 has been achieved for both channels

Original languageEnglish
Pages (from-to)241-245
Number of pages5
JournalOptics Communications
Volume450
DOIs
StatePublished - 1 Nov 2019

Keywords

  • Free-space optical communications
  • Multiplexing
  • Optical vortices

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