Mitigation for turbulence effects in a 40-Gbit/s orbital-angular-momentum-multiplexed free-space optical link between a ground station and a retro-reflecting UAV using MIMO equalization

Long Li; Runzhou Zhang; Peicheng Liao; Yinwen Cao; Haoqian Song; Yifan Zhao; Jing Du; Zhe Zhao; Cong Liu; Kai Pang; Hao Song; Ahmed Almaiman; Dmitry Starodubov; Brittany Lynn; Robert Bock; Moshe Tur; Andreas F. Molisch; Alan E. Willner

doi:10.1364/OL.44.005181

Mitigation for turbulence effects in a 40-Gbit/s orbital-angular-momentum-multiplexed free-space optical link between a ground station and a retro-reflecting UAV using MIMO equalization

Long Li^*, Runzhou Zhang, Peicheng Liao, Yinwen Cao, Haoqian Song, Yifan Zhao, Jing Du, Zhe Zhao, Cong Liu, Kai Pang, Hao Song, Ahmed Almaiman, Dmitry Starodubov, Brittany Lynn, Robert Bock, Moshe Tur, Andreas F. Molisch, Alan E. Willner

^*Corresponding author for this work

School of Electrical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We experimentally demonstrate turbulence effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric turbulence, each carrying a 20-Gbit/s signal. 2 × 2 MIMO equalization is used to mitigate turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8 × 10−³ are achieved for both channels.

Original language	English
Pages (from-to)	5181-5184
Number of pages	4
Journal	Optics Letters
Volume	44
Issue number	21
DOIs	https://doi.org/10.1364/OL.44.005181
State	Published - 1 Nov 2019

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Li, L., Zhang, R., Liao, P., Cao, Y., Song, H., Zhao, Y., Du, J., Zhao, Z., Liu, C., Pang, K., Song, H., Almaiman, A., Starodubov, D., Lynn, B., Bock, R., Tur, M., Molisch, A. F., & Willner, A. E. (2019). Mitigation for turbulence effects in a 40-Gbit/s orbital-angular-momentum-multiplexed free-space optical link between a ground station and a retro-reflecting UAV using MIMO equalization. Optics Letters, 44(21), 5181-5184. https://doi.org/10.1364/OL.44.005181

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title = "Mitigation for turbulence effects in a 40-Gbit/s orbital-angular-momentum-multiplexed free-space optical link between a ground station and a retro-reflecting UAV using MIMO equalization",

abstract = "We experimentally demonstrate turbulence effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric turbulence, each carrying a 20-Gbit/s signal. 2 × 2 MIMO equalization is used to mitigate turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8 × 10−3 are achieved for both channels.",

author = "Long Li and Runzhou Zhang and Peicheng Liao and Yinwen Cao and Haoqian Song and Yifan Zhao and Jing Du and Zhe Zhao and Cong Liu and Kai Pang and Hao Song and Ahmed Almaiman and Dmitry Starodubov and Brittany Lynn and Robert Bock and Moshe Tur and Molisch, {Andreas F.} and Willner, {Alan E.}",

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doi = "10.1364/OL.44.005181",

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Li, L, Zhang, R, Liao, P, Cao, Y, Song, H, Zhao, Y, Du, J, Zhao, Z, Liu, C, Pang, K, Song, H, Almaiman, A, Starodubov, D, Lynn, B, Bock, R, Tur, M, Molisch, AF & Willner, AE 2019, 'Mitigation for turbulence effects in a 40-Gbit/s orbital-angular-momentum-multiplexed free-space optical link between a ground station and a retro-reflecting UAV using MIMO equalization', Optics Letters, vol. 44, no. 21, pp. 5181-5184. https://doi.org/10.1364/OL.44.005181

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AU - Li, Long

AU - Zhang, Runzhou

AU - Liao, Peicheng

AU - Cao, Yinwen

AU - Song, Haoqian

AU - Zhao, Yifan

AU - Du, Jing

AU - Zhao, Zhe

AU - Liu, Cong

AU - Pang, Kai

AU - Song, Hao

AU - Almaiman, Ahmed

AU - Starodubov, Dmitry

AU - Lynn, Brittany

AU - Bock, Robert

AU - Tur, Moshe

AU - Molisch, Andreas F.

AU - Willner, Alan E.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - We experimentally demonstrate turbulence effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric turbulence, each carrying a 20-Gbit/s signal. 2 × 2 MIMO equalization is used to mitigate turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8 × 10−3 are achieved for both channels.

AB - We experimentally demonstrate turbulence effect mitigation in a 100-m round-trip orbital-angular-momentum (OAM)multiplexed free-space optical communication link between a ground transmitter and a ground receiver via a retro-reflecting hovering unmanned aerial vehicle (UAV) using multiple-input–multiple-output (MIMO) equalization. In our demonstration, two OAM beams at 1550 nm are transmitted to the UAV through emulated atmospheric turbulence, each carrying a 20-Gbit/s signal. 2 × 2 MIMO equalization is used to mitigate turbulence-induced crosstalk between the two OAM channels. Bit error rates below the 7% overhead forward error correction limit of 3.8 × 10−3 are achieved for both channels.

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Mitigation for turbulence effects in a 40-Gbit/s orbital-angular-momentum-multiplexed free-space optical link between a ground station and a retro-reflecting UAV using MIMO equalization

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