Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication

Bin Chen; Alex Alvarado; Sjoerd van der Heide; Menno van den Hout; Hartmut Hafermann; Chigo M. Okonkwo

doi:10.1109/JLT.2021.3056468

Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication

Bin Chen (Corresponding author), Alex Alvarado, Sjoerd van der Heide, Menno van den Hout, Hartmut Hafermann, Chigo M. Okonkwo

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

24 Citations (SciVal)

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Abstract

We propose a new four-dimensional orthant-symmetric 128-Ary modulation format (4D-OS128) with a spectral efficiency of 7 bit/4D-sym. The proposed format fills the gap between polarization-multiplexed 8-and 16-Ary quadrature-Amplitude modulation (PM-8QAM and PM-16QAM). Numerical simulations show that 4D-OS128 outperforms two well-studied 4D geometrically-shaped modulation formats: 128SP-16QAM and 7b4D-2A8PSK by up to 0.65 dB for bit-interleaved coded modulation at the same spectral efficiency. These gains are experimentally demonstrated in a 11×233 Gbit/s wavelength division multiplexing (WDM) transmission system operating at 5.95 bit/4D-sym over 6000 and 9000 km for both EDFA-only and hybrid amplification scenarios, respectively. A reach increase of 15% is achieved with respect to 128-Ary set-partitioning 16QAM. Furthermore, the proposed 4D-OS128 is also compared to $\boldsymbol{D}_4$ lattice-based constellation, 16QAM and probabilistically-shaped 16QAM with finite blocklength via simulation.

Original language	English
Article number	9345386
Pages (from-to)	2737-2753
Number of pages	17
Journal	Journal of Lightwave Technology
Volume	39
Issue number	9
DOIs	https://doi.org/10.1109/JLT.2021.3056468
Publication status	Published - 1 May 2021

Keywords

Labeling
Modulation
Nonlinear optics
Optical modulation
Optical polarization
Optimization
Quadrature amplitude modulation

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10.1109/JLT.2021.3056468

pdfFinal published version, 2.48 MBLicence: TAVERNE

Cite this

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title = "Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication",

abstract = "We propose a new four-dimensional orthant-symmetric 128-Ary modulation format (4D-OS128) with a spectral efficiency of 7 bit/4D-sym. The proposed format fills the gap between polarization-multiplexed 8-and 16-Ary quadrature-Amplitude modulation (PM-8QAM and PM-16QAM). Numerical simulations show that 4D-OS128 outperforms two well-studied 4D geometrically-shaped modulation formats: 128SP-16QAM and 7b4D-2A8PSK by up to 0.65 dB for bit-interleaved coded modulation at the same spectral efficiency. These gains are experimentally demonstrated in a 11×233 Gbit/s wavelength division multiplexing (WDM) transmission system operating at 5.95 bit/4D-sym over 6000 and 9000 km for both EDFA-only and hybrid amplification scenarios, respectively. A reach increase of 15% is achieved with respect to 128-Ary set-partitioning 16QAM. Furthermore, the proposed 4D-OS128 is also compared to $\boldsymbol{D}_4$ lattice-based constellation, 16QAM and probabilistically-shaped 16QAM with finite blocklength via simulation.",

keywords = "Labeling, Modulation, Nonlinear optics, Optical modulation, Optical polarization, Optimization, Quadrature amplitude modulation",

author = "Bin Chen and Alex Alvarado and {van der Heide}, Sjoerd and {van den Hout}, Menno and Hartmut Hafermann and Okonkwo, {Chigo M.}",

year = "2021",

month = may,

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doi = "10.1109/JLT.2021.3056468",

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Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication. / Chen, Bin (Corresponding author); Alvarado, Alex ; van der Heide, Sjoerd et al.
In: Journal of Lightwave Technology, Vol. 39, No. 9, 9345386, 01.05.2021, p. 2737-2753.

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

TY - JOUR

T1 - Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication

AU - Chen, Bin

AU - Alvarado, Alex

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AU - van den Hout, Menno

AU - Hafermann, Hartmut

AU - Okonkwo, Chigo M.

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AB - We propose a new four-dimensional orthant-symmetric 128-Ary modulation format (4D-OS128) with a spectral efficiency of 7 bit/4D-sym. The proposed format fills the gap between polarization-multiplexed 8-and 16-Ary quadrature-Amplitude modulation (PM-8QAM and PM-16QAM). Numerical simulations show that 4D-OS128 outperforms two well-studied 4D geometrically-shaped modulation formats: 128SP-16QAM and 7b4D-2A8PSK by up to 0.65 dB for bit-interleaved coded modulation at the same spectral efficiency. These gains are experimentally demonstrated in a 11×233 Gbit/s wavelength division multiplexing (WDM) transmission system operating at 5.95 bit/4D-sym over 6000 and 9000 km for both EDFA-only and hybrid amplification scenarios, respectively. A reach increase of 15% is achieved with respect to 128-Ary set-partitioning 16QAM. Furthermore, the proposed 4D-OS128 is also compared to $\boldsymbol{D}_4$ lattice-based constellation, 16QAM and probabilistically-shaped 16QAM with finite blocklength via simulation.

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Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication

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Analysis and Experimental Demonstration of Orthant-Symmetric Four-dimensional 7 bit/4D-sym Modulation for Optical Fiber Communication

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