Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber

Feng Tian; Tianze Wu; Chao Yu; Chuxuan Wang; Mohai Yue; Ran Gao; Qi Zhang; Zhipei Li; Qinghua Tian; Fu Wang; Xiangjun Xin

doi:10.3390/photonics10091017

Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber

Feng Tian^*, Tianze Wu, Chao Yu, Chuxuan Wang, Mohai Yue, Ran Gao, Qi Zhang, Zhipei Li, Qinghua Tian, Fu Wang, Xiangjun Xin

^*此作品的通讯作者

信息与电子学院

科研成果: 期刊稿件 › 文章 › 同行评审

2 引用（Scopus）

摘要

In this paper, we experimentally demonstrate a net bit rate of 261.7 Gbit/s in a seven-core transmission system with a Kramers–Kronig (KK) receiver. The 10 GBaud 16-level quadrature amplitude modulation (QAM) signal is transmitted over a 2.5 km seven-core fiber, and the relationship between carrier-to-signal power ratio, signal power, frequency spacing, and optical power is analyzed. Moreover, a multiple-input multiple-output (MIMO) Volterra equalization algorithm with crosstalk-dependent steps is proposed to compensate for inter-core crosstalk and impairments induced by other devices. Compared to the single-input single-output (SISO) Volterra equalizer, the CSPR can be reduced by 1.3 dB, and the received power gain can reach up to 0.7 dB.

源语言	英语
文章编号	1017
期刊	Photonics
卷	10
期	9
DOI	https://doi.org/10.3390/photonics10091017
出版状态	已出版 - 9月 2023

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10.3390/photonics10091017

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title = "Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber",

abstract = "In this paper, we experimentally demonstrate a net bit rate of 261.7 Gbit/s in a seven-core transmission system with a Kramers–Kronig (KK) receiver. The 10 GBaud 16-level quadrature amplitude modulation (QAM) signal is transmitted over a 2.5 km seven-core fiber, and the relationship between carrier-to-signal power ratio, signal power, frequency spacing, and optical power is analyzed. Moreover, a multiple-input multiple-output (MIMO) Volterra equalization algorithm with crosstalk-dependent steps is proposed to compensate for inter-core crosstalk and impairments induced by other devices. Compared to the single-input single-output (SISO) Volterra equalizer, the CSPR can be reduced by 1.3 dB, and the received power gain can reach up to 0.7 dB.",

keywords = "Kramers–Kronig receiver, MIMO, Volterra equalizer, crosstalk, optical fiber communication, seven-core transmission",

author = "Feng Tian and Tianze Wu and Chao Yu and Chuxuan Wang and Mohai Yue and Ran Gao and Qi Zhang and Zhipei Li and Qinghua Tian and Fu Wang and Xiangjun Xin",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = sep,

doi = "10.3390/photonics10091017",

language = "English",

volume = "10",

journal = "Photonics",

issn = "2304-6732",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

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TY - JOUR

T1 - Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber

AU - Tian, Feng

AU - Wu, Tianze

AU - Yu, Chao

AU - Wang, Chuxuan

AU - Yue, Mohai

AU - Gao, Ran

AU - Zhang, Qi

AU - Li, Zhipei

AU - Tian, Qinghua

AU - Wang, Fu

AU - Xin, Xiangjun

PY - 2023/9

Y1 - 2023/9

N2 - In this paper, we experimentally demonstrate a net bit rate of 261.7 Gbit/s in a seven-core transmission system with a Kramers–Kronig (KK) receiver. The 10 GBaud 16-level quadrature amplitude modulation (QAM) signal is transmitted over a 2.5 km seven-core fiber, and the relationship between carrier-to-signal power ratio, signal power, frequency spacing, and optical power is analyzed. Moreover, a multiple-input multiple-output (MIMO) Volterra equalization algorithm with crosstalk-dependent steps is proposed to compensate for inter-core crosstalk and impairments induced by other devices. Compared to the single-input single-output (SISO) Volterra equalizer, the CSPR can be reduced by 1.3 dB, and the received power gain can reach up to 0.7 dB.

AB - In this paper, we experimentally demonstrate a net bit rate of 261.7 Gbit/s in a seven-core transmission system with a Kramers–Kronig (KK) receiver. The 10 GBaud 16-level quadrature amplitude modulation (QAM) signal is transmitted over a 2.5 km seven-core fiber, and the relationship between carrier-to-signal power ratio, signal power, frequency spacing, and optical power is analyzed. Moreover, a multiple-input multiple-output (MIMO) Volterra equalization algorithm with crosstalk-dependent steps is proposed to compensate for inter-core crosstalk and impairments induced by other devices. Compared to the single-input single-output (SISO) Volterra equalizer, the CSPR can be reduced by 1.3 dB, and the received power gain can reach up to 0.7 dB.

KW - Kramers–Kronig receiver

KW - MIMO

KW - Volterra equalizer

KW - crosstalk

KW - optical fiber communication

KW - seven-core transmission

UR - http://www.scopus.com/inward/record.url?scp=85172223759&partnerID=8YFLogxK

U2 - 10.3390/photonics10091017

DO - 10.3390/photonics10091017

M3 - Article

AN - SCOPUS:85172223759

SN - 2304-6732

VL - 10

JO - Photonics

JF - Photonics

IS - 9

M1 - 1017

ER -

Kramers–Kronig Transmission with a Crosstalk-Dependent Step Multiple-Input Multiple-Output Volterra Equalizer in a Seven-Core Fiber

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