Constellation-designed 32QAM with geometric and probabilistic shaping for optical fiber system

Kai Lv; Qi Zhang; Xiangjun Xin; Xishuo Wang; Wei Zhang; Ying Tao; Qinghua Tian; Feng Tian; Xiaolong Pan

doi:10.1117/1.OE.58.1.016101

Constellation-designed 32QAM with geometric and probabilistic shaping for optical fiber system

Kai Lv, Qi Zhang, Xiangjun Xin, Xishuo Wang, Wei Zhang, Ying Tao, Qinghua Tian, Feng Tian, Xiaolong Pan^*

^*Corresponding author for this work

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

3 Citations (Scopus)

Abstract

A constellation-designed 32QAM method is proposed using geometric shaping (GS) and probabilistic shaping (PS). In addition, a 50-Gbaud polarization division multiplexed multispan optical fiber link for the proposed scheme is set up. The simulation results show that when the net data rate reaches 211 Gbit/s, the proposed 32QAM with GS and PS is capable of achieving about 0.1- A nd 0.3-dB OSNR gain over PS-32QAM and regular 32QAM (R-32QAM), respectively. When 213 Gbit/s net data rate transmission is achieved, the use of the proposed 32QAM can increase the transmission length by ∼60 km over PS-32QAM and ∼210 km over R-32QAM. Moreover, when OSNR is set to 19 dB and signal bandwidth is 40 Gbaud, the net data rate of the proposed 32QAM is 2 and 7.5 Gbit/s larger than PS-32QAM and R-32QAM, respectively.

Original language	English
Article number	016101
Journal	Optical Engineering
Volume	58
Issue number	1
DOIs	https://doi.org/10.1117/1.OE.58.1.016101
Publication status	Published - 1 Jan 2019
Externally published	Yes

Keywords

constellation-designed 32QAM
geometric shaping
optical fiber link
probabilistic shaping

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10.1117/1.OE.58.1.016101

Cite this

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title = "Constellation-designed 32QAM with geometric and probabilistic shaping for optical fiber system",

abstract = "A constellation-designed 32QAM method is proposed using geometric shaping (GS) and probabilistic shaping (PS). In addition, a 50-Gbaud polarization division multiplexed multispan optical fiber link for the proposed scheme is set up. The simulation results show that when the net data rate reaches 211 Gbit/s, the proposed 32QAM with GS and PS is capable of achieving about 0.1- A nd 0.3-dB OSNR gain over PS-32QAM and regular 32QAM (R-32QAM), respectively. When 213 Gbit/s net data rate transmission is achieved, the use of the proposed 32QAM can increase the transmission length by ∼60 km over PS-32QAM and ∼210 km over R-32QAM. Moreover, when OSNR is set to 19 dB and signal bandwidth is 40 Gbaud, the net data rate of the proposed 32QAM is 2 and 7.5 Gbit/s larger than PS-32QAM and R-32QAM, respectively.",

keywords = "constellation-designed 32QAM, geometric shaping, optical fiber link, probabilistic shaping",

author = "Kai Lv and Qi Zhang and Xiangjun Xin and Xishuo Wang and Wei Zhang and Ying Tao and Qinghua Tian and Feng Tian and Xiaolong Pan",

note = "Publisher Copyright: {\textcopyright} 2019 Society of Photo-Optical Instrumentation Engineers (SPIE).",

year = "2019",

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doi = "10.1117/1.OE.58.1.016101",

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T1 - Constellation-designed 32QAM with geometric and probabilistic shaping for optical fiber system

AU - Lv, Kai

AU - Zhang, Qi

AU - Xin, Xiangjun

AU - Wang, Xishuo

AU - Zhang, Wei

AU - Tao, Ying

AU - Tian, Qinghua

AU - Tian, Feng

AU - Pan, Xiaolong

PY - 2019/1/1

Y1 - 2019/1/1

N2 - A constellation-designed 32QAM method is proposed using geometric shaping (GS) and probabilistic shaping (PS). In addition, a 50-Gbaud polarization division multiplexed multispan optical fiber link for the proposed scheme is set up. The simulation results show that when the net data rate reaches 211 Gbit/s, the proposed 32QAM with GS and PS is capable of achieving about 0.1- A nd 0.3-dB OSNR gain over PS-32QAM and regular 32QAM (R-32QAM), respectively. When 213 Gbit/s net data rate transmission is achieved, the use of the proposed 32QAM can increase the transmission length by ∼60 km over PS-32QAM and ∼210 km over R-32QAM. Moreover, when OSNR is set to 19 dB and signal bandwidth is 40 Gbaud, the net data rate of the proposed 32QAM is 2 and 7.5 Gbit/s larger than PS-32QAM and R-32QAM, respectively.

AB - A constellation-designed 32QAM method is proposed using geometric shaping (GS) and probabilistic shaping (PS). In addition, a 50-Gbaud polarization division multiplexed multispan optical fiber link for the proposed scheme is set up. The simulation results show that when the net data rate reaches 211 Gbit/s, the proposed 32QAM with GS and PS is capable of achieving about 0.1- A nd 0.3-dB OSNR gain over PS-32QAM and regular 32QAM (R-32QAM), respectively. When 213 Gbit/s net data rate transmission is achieved, the use of the proposed 32QAM can increase the transmission length by ∼60 km over PS-32QAM and ∼210 km over R-32QAM. Moreover, when OSNR is set to 19 dB and signal bandwidth is 40 Gbaud, the net data rate of the proposed 32QAM is 2 and 7.5 Gbit/s larger than PS-32QAM and R-32QAM, respectively.

KW - constellation-designed 32QAM

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KW - optical fiber link

KW - probabilistic shaping

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SN - 0091-3286

VL - 58

JO - Optical Engineering

JF - Optical Engineering

IS - 1

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ER -

Constellation-designed 32QAM with geometric and probabilistic shaping for optical fiber system

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Keywords

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