Bibliographic Details
| Title: |
Enhanced Atmospheric Turbulence Resiliency with Successive Interference Cancellation DSP in Mode Division Multiplexing Free-Space Optical Links |
| Authors: |
Li, Yiming, Chen, Zhaozhong, Hu, Zhouyi, Benton, David M., Ali, Abdallah A. I., Patel, Mohammed, Lavery, Martin P. J., Ellis, Andrew D. |
| Publication Year: |
2022 |
| Collection: |
Physics (Other) |
| Subject Terms: |
Electrical Engineering and Systems Science - Signal Processing, Physics - Optics |
| More Details: |
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 bit/s/Hz in emulated turbulent links in a mode-division multiplexing free-space optical system. |
| Document Type: |
Working Paper |
| DOI: |
10.1109/JLT.2022.3209092 |
| Access URL: |
http://arxiv.org/abs/2208.00836 |
| Accession Number: |
edsarx.2208.00836 |
| Database: |
arXiv |
