Li, Y., Chen, Z. , Hu, Z., Benton, D. M., Ali, A. A.I., Patel, M., Lavery, M. P.J. and Ellis, A. D. (2022) Enhanced atmospheric turbulence resiliency with successive interference cancellation DSP in mode division multiplexing free-space optical links. Journal of Lightwave Technology, 40(24), pp. 7769-7778. (doi: 10.1109/JLT.2022.3209092)
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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.
| Item Type: | Articles |
|---|---|
| Additional Information: | 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. |
| Status: | Published |
| Refereed: | Yes |
| Glasgow Author(s) Enlighten ID: | Lavery, Professor Martin and Chen, Dr Zhaozhong |
| Authors: | Li, Y., Chen, Z., Hu, Z., Benton, D. M., Ali, A. A.I., Patel, M., Lavery, M. P.J., and Ellis, A. D. |
| College/School: | College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering |
| Journal Name: | Journal of Lightwave Technology |
| Publisher: | IEEE |
| ISSN: | 0733-8724 |
| ISSN (Online): | 1558-2213 |
| Published Online: | 30 September 2022 |
| Copyright Holders: | Copyright © 2022 IEEE |
| First Published: | First published in Journal of Lightwave Technology 40(24): 7769-7778 |
| Publisher Policy: | Reproduced with the permission of the Publisher |
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