Enhanced Atmospheric Turbulence Resiliency With Successive Interference Cancellation DSP in Mode Division Multiplexing Free-Space Optical Links

Yiming Li; Zhaozhong Chen; Zhouyi Hu; David M. Benton; Abdallah A. I. Ali; Mohammed Patel; Martin P. J. Lavery; Andrew D. Ellis

doi:10.1109/jlt.2022.3209092

Enhanced Atmospheric Turbulence Resiliency With Successive Interference Cancellation DSP in Mode Division Multiplexing Free-Space Optical Links

Yiming Li, Zhaozhong Chen, Zhouyi Hu, David M. Benton, Abdallah A. I. Ali, Mohammed Patel, Martin P. J. Lavery, Andrew D. Ellis

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

Abstract

We experimentally demonstrate the enhanced atmospheric turbulence resiliency in a 137.8 Gbit/s/mode mode-division multiplexing free-space optical communication link through the application of a successive interference cancellation digital signal processing algorithm. The turbulence resiliency is further enhanced through redundant receive channels in the mode-division multiplexing link. The proof of concept demonstration is performed using commercially available mode-selective photonic lanterns, a commercial transponder, and a spatial light modulator based turbulence emulator. In this link, 5 spatial modes with each mode carrying 34.46 GBaud dual-polarization quadrature phase shift keying signals are successfully transmitted with an average bit error rate lower than the hard-decision forward error correction limit. As a result, we achieved a record-high mode- and polarization-division multiplexing channel number of 10, a record-high line rate of 689.23 Gbit/s, and a record-high net spectral efficiency of 13.9 b/s/Hz in emulated turbulent links in a mode-division multiplexing free-space optical system.

Original language	English
Pages (from-to)	7769-7778
Journal	Journal of Lightwave Technology
Volume	40
Issue number	24
Early online date	30 Sept 2022
DOIs	https://doi.org/10.1109/jlt.2022.3209092
Publication status	Published - 15 Dec 2022

Bibliographical note

© 2022, IEEE. UKRI Rights Retention Statement: For the purpose of open access, the author has applied a Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising.

Research supported by EPSRC under grant numbers EP/T009047/1, EP/T009012/1, EP/S003436/1, and EP/S016171/1. Research supported by European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 713694, and Future and Emerging Technologies Open grant agreement Super-pixels No. 829116.

Keywords

Mode division multiplexing (MDM)
free-space optics (FSO)
multiple-input multiple-output (MIMO)
successive interference cancellation (SIC)
turbulence

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10.1109/jlt.2022.3209092

AAM Enhanced_Atmospheric_Turbulence_Resiliency_With_Successive_Interference_Cancellation_DSP_in_Mode_Division_Multiplexing_Free-Space_Optical_Links
© 2022, IEEE. © 2022, IEEE. UKRI Rights Retention Statement: For the purpose of open access, the author has applied a Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising.
Accepted author manuscript, 2.78 MBLicence: CC BY 4.0

Cite this

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title = "Enhanced Atmospheric Turbulence Resiliency With Successive Interference Cancellation DSP in Mode Division Multiplexing Free-Space Optical Links",

abstract = "We experimentally demonstrate the enhanced atmospheric turbulence resiliency in a 137.8 Gbit/s/mode mode-division multiplexing free-space optical communication link through the application of a successive interference cancellation digital signal processing algorithm. The turbulence resiliency is further enhanced through redundant receive channels in the mode-division multiplexing link. The proof of concept demonstration is performed using commercially available mode-selective photonic lanterns, a commercial transponder, and a spatial light modulator based turbulence emulator. In this link, 5 spatial modes with each mode carrying 34.46 GBaud dual-polarization quadrature phase shift keying signals are successfully transmitted with an average bit error rate lower than the hard-decision forward error correction limit. As a result, we achieved a record-high mode- and polarization-division multiplexing channel number of 10, a record-high line rate of 689.23 Gbit/s, and a record-high net spectral efficiency of 13.9 b/s/Hz in emulated turbulent links in a mode-division multiplexing free-space optical system.",

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author = "Yiming Li and Zhaozhong Chen and Zhouyi Hu and Benton, {David M.} and Ali, {Abdallah A. I.} and Mohammed Patel and Lavery, {Martin P. J.} and Ellis, {Andrew D.}",

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AU - Benton, David M.

AU - Ali, Abdallah A. I.

AU - Patel, Mohammed

AU - Lavery, Martin P. J.

AU - Ellis, Andrew D.

N1 - © 2022, IEEE. UKRI Rights Retention Statement: For the purpose of open access, the author has applied a Creative Commons Attribution (CC BY) licence to any Author Accepted Manuscript version arising. Research supported by EPSRC under grant numbers EP/T009047/1, EP/T009012/1, EP/S003436/1, and EP/S016171/1. Research supported by European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 713694, and Future and Emerging Technologies Open grant agreement Super-pixels No. 829116.

PY - 2022/12/15

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N2 - We experimentally demonstrate the enhanced atmospheric turbulence resiliency in a 137.8 Gbit/s/mode mode-division multiplexing free-space optical communication link through the application of a successive interference cancellation digital signal processing algorithm. The turbulence resiliency is further enhanced through redundant receive channels in the mode-division multiplexing link. The proof of concept demonstration is performed using commercially available mode-selective photonic lanterns, a commercial transponder, and a spatial light modulator based turbulence emulator. In this link, 5 spatial modes with each mode carrying 34.46 GBaud dual-polarization quadrature phase shift keying signals are successfully transmitted with an average bit error rate lower than the hard-decision forward error correction limit. As a result, we achieved a record-high mode- and polarization-division multiplexing channel number of 10, a record-high line rate of 689.23 Gbit/s, and a record-high net spectral efficiency of 13.9 b/s/Hz in emulated turbulent links in a mode-division multiplexing free-space optical system.

AB - We experimentally demonstrate the enhanced atmospheric turbulence resiliency in a 137.8 Gbit/s/mode mode-division multiplexing free-space optical communication link through the application of a successive interference cancellation digital signal processing algorithm. The turbulence resiliency is further enhanced through redundant receive channels in the mode-division multiplexing link. The proof of concept demonstration is performed using commercially available mode-selective photonic lanterns, a commercial transponder, and a spatial light modulator based turbulence emulator. In this link, 5 spatial modes with each mode carrying 34.46 GBaud dual-polarization quadrature phase shift keying signals are successfully transmitted with an average bit error rate lower than the hard-decision forward error correction limit. As a result, we achieved a record-high mode- and polarization-division multiplexing channel number of 10, a record-high line rate of 689.23 Gbit/s, and a record-high net spectral efficiency of 13.9 b/s/Hz in emulated turbulent links in a mode-division multiplexing free-space optical system.

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ER -

Enhanced Atmospheric Turbulence Resiliency With Successive Interference Cancellation DSP in Mode Division Multiplexing Free-Space Optical Links

Abstract

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Keywords

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