Free-space optical communications using orbital-angular-momentum multiplexing combined with MIMO-based spatial multiplexing

Yongxiong Ren; Zhe Wang; Guodong Xie; Long Li; Yinwen Cao; Cong Liu; Peicheng Liao; Yan Yan; Nisar Ahmed; Zhe Zhao; Asher Willner; Nima Ashrafi; Solyman Ashrafi; Roger D. Linquist; Robert Bock; Moshe Tur; Andreas F. Molisch; Alan E. Willner

doi:10.1364/OL.40.004210

Free-space optical communications using orbital-angular-momentum multiplexing combined with MIMO-based spatial multiplexing

Yongxiong Ren^*, Zhe Wang, Guodong Xie, Long Li, Yinwen Cao, Cong Liu, Peicheng Liao, Yan Yan, Nisar Ahmed, Zhe Zhao, Asher Willner, Nima Ashrafi, Solyman Ashrafi, Roger D. Linquist, 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

84 Scopus citations

Abstract

We explore the potential of combining the advantages of multiple-input multiple-output (MIMO)-based spatial multiplexing with those of orbital angular momentum (OAM) multiplexing to increase the capacity of free-space optical (FSO) communications. We experimentally demonstrate an 80 Gbit/s FSO system with a 2 x 2 aperture architecture, in which each transmitter aperture contains two multiplexed data-carrying OAM modes. Inter-channel crosstalk effects are minimized by the OAM beams' inherent orthogonality and by the use of 4 x 4 MIMO signal processing. Our experimental results show that the bit-error rates can reach below the forward error correction limit of 3.8 × 10^-3 and the power penalties are less than 3.6 dB for all channels after MIMO processing. This indicates that OAM and MIMO-based spatial multiplexing could be simultaneously utilized, thereby providing the potential to enhance system performance.

Original language	English
Pages (from-to)	4210-4213
Number of pages	4
Journal	Optics Letters
Volume	40
Issue number	18
DOIs	https://doi.org/10.1364/OL.40.004210
State	Published - 15 Sep 2015

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Ren, Y., Wang, Z., Xie, G., Li, L., Cao, Y., Liu, C., Liao, P., Yan, Y., Ahmed, N., Zhao, Z., Willner, A., Ashrafi, N., Ashrafi, S., Linquist, R. D., Bock, R., Tur, M., Molisch, A. F., & Willner, A. E. (2015). Free-space optical communications using orbital-angular-momentum multiplexing combined with MIMO-based spatial multiplexing. Optics Letters, 40(18), 4210-4213. https://doi.org/10.1364/OL.40.004210

@article{351554e100ee4223af0e6d6095c66728,

title = "Free-space optical communications using orbital-angular-momentum multiplexing combined with MIMO-based spatial multiplexing",

abstract = "We explore the potential of combining the advantages of multiple-input multiple-output (MIMO)-based spatial multiplexing with those of orbital angular momentum (OAM) multiplexing to increase the capacity of free-space optical (FSO) communications. We experimentally demonstrate an 80 Gbit/s FSO system with a 2 x 2 aperture architecture, in which each transmitter aperture contains two multiplexed data-carrying OAM modes. Inter-channel crosstalk effects are minimized by the OAM beams' inherent orthogonality and by the use of 4 x 4 MIMO signal processing. Our experimental results show that the bit-error rates can reach below the forward error correction limit of 3.8 × 10-3 and the power penalties are less than 3.6 dB for all channels after MIMO processing. This indicates that OAM and MIMO-based spatial multiplexing could be simultaneously utilized, thereby providing the potential to enhance system performance.",

author = "Yongxiong Ren and Zhe Wang and Guodong Xie and Long Li and Yinwen Cao and Cong Liu and Peicheng Liao and Yan Yan and Nisar Ahmed and Zhe Zhao and Asher Willner and Nima Ashrafi and Solyman Ashrafi and Linquist, \{Roger D.\} and Robert Bock and Moshe Tur and Molisch, \{Andreas F.\} and Willner, \{Alan E.\}",

note = "Publisher Copyright: {\textcopyright} 2015 Optical Society of America.",

year = "2015",

month = sep,

day = "15",

doi = "10.1364/OL.40.004210",

language = "אנגלית",

volume = "40",

pages = "4210--4213",

journal = "Optics Letters",

issn = "0146-9592",

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Ren, Y, Wang, Z, Xie, G, Li, L, Cao, Y, Liu, C, Liao, P, Yan, Y, Ahmed, N, Zhao, Z, Willner, A, Ashrafi, N, Ashrafi, S, Linquist, RD, Bock, R, Tur, M, Molisch, AF & Willner, AE 2015, 'Free-space optical communications using orbital-angular-momentum multiplexing combined with MIMO-based spatial multiplexing', Optics Letters, vol. 40, no. 18, pp. 4210-4213. https://doi.org/10.1364/OL.40.004210

TY - JOUR

T1 - Free-space optical communications using orbital-angular-momentum multiplexing combined with MIMO-based spatial multiplexing

AU - Ren, Yongxiong

AU - Wang, Zhe

AU - Xie, Guodong

AU - Li, Long

AU - Cao, Yinwen

AU - Liu, Cong

AU - Liao, Peicheng

AU - Yan, Yan

AU - Ahmed, Nisar

AU - Zhao, Zhe

AU - Willner, Asher

AU - Ashrafi, Nima

AU - Ashrafi, Solyman

AU - Linquist, Roger D.

AU - Bock, Robert

AU - Tur, Moshe

AU - Molisch, Andreas F.

AU - Willner, Alan E.

PY - 2015/9/15

Y1 - 2015/9/15

N2 - We explore the potential of combining the advantages of multiple-input multiple-output (MIMO)-based spatial multiplexing with those of orbital angular momentum (OAM) multiplexing to increase the capacity of free-space optical (FSO) communications. We experimentally demonstrate an 80 Gbit/s FSO system with a 2 x 2 aperture architecture, in which each transmitter aperture contains two multiplexed data-carrying OAM modes. Inter-channel crosstalk effects are minimized by the OAM beams' inherent orthogonality and by the use of 4 x 4 MIMO signal processing. Our experimental results show that the bit-error rates can reach below the forward error correction limit of 3.8 × 10-3 and the power penalties are less than 3.6 dB for all channels after MIMO processing. This indicates that OAM and MIMO-based spatial multiplexing could be simultaneously utilized, thereby providing the potential to enhance system performance.

AB - We explore the potential of combining the advantages of multiple-input multiple-output (MIMO)-based spatial multiplexing with those of orbital angular momentum (OAM) multiplexing to increase the capacity of free-space optical (FSO) communications. We experimentally demonstrate an 80 Gbit/s FSO system with a 2 x 2 aperture architecture, in which each transmitter aperture contains two multiplexed data-carrying OAM modes. Inter-channel crosstalk effects are minimized by the OAM beams' inherent orthogonality and by the use of 4 x 4 MIMO signal processing. Our experimental results show that the bit-error rates can reach below the forward error correction limit of 3.8 × 10-3 and the power penalties are less than 3.6 dB for all channels after MIMO processing. This indicates that OAM and MIMO-based spatial multiplexing could be simultaneously utilized, thereby providing the potential to enhance system performance.

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AN - SCOPUS:84959017881

SN - 0146-9592

VL - 40

SP - 4210

EP - 4213

JO - Optics Letters

JF - Optics Letters

IS - 18

ER -

Free-space optical communications using orbital-angular-momentum multiplexing combined with MIMO-based spatial multiplexing

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