Source of phase noise and its impact on digital multicarrier in high-speed coherent optical communication

doi:10.12267/j.issn.2096-5931.2024.11.014

Abstract

Abstract:

This paper introduces the sources of phase noise in high-speed coherent optical communication systems and its impact on optical transmission performance. Based on 400G capacity simulation, the performance differences under different laser linewidths and dispersion are compared. The results show that the limiting factors in high-speed coherent optical communication are mainly the phase noise of the laser and the equalization-enhanced phase noise generated by dispersion coupling in the transmission link. The digital multicarrier technology has stronger tolerance and can transmit longer distances than the single carrier technology.

Key words: high-speed coherent optical communication, equalization-enhanced phase noise, digital multicarrier, single carrier

CLC Number:

TN929.11

LIU Qun. Source of phase noise and its impact on digital multicarrier in high-speed coherent optical communication[J]. Information and Communications Technology and Policy, 2024, 50(11): 90-96.

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URL:

http://ictp.caict.ac.cn/EN/10.12267/j.issn.2096-5931.2024.11.014

http://ictp.caict.ac.cn/EN/Y2024/V50/I11/90

Figures/Tables 10

References 12

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时间/年	容量	传输格式	技术
2003	10G OTN	NRZ	非相干WDM技术
2013	100G OTN	QPSK	相干技术首次进入OTN
2019	200G OTN	QPSK/PCS-16QAM	相对100G,距离不变,容量翻倍
2023	400G OTN	QPSK/PCS-16QAM	相对200G,距离不变,容量翻倍
2028	800G OTN	PCS-64QAM	相对400G,距离不变,容量翻倍

时间/年	容量	传输格式	技术
2003	10G OTN	NRZ	非相干WDM技术
2013	100G OTN	QPSK	相干技术首次进入OTN
2019	200G OTN	QPSK/PCS-16QAM	相对100G,距离不变,容量翻倍
2023	400G OTN	QPSK/PCS-16QAM	相对200G,距离不变,容量翻倍
2028	800G OTN	PCS-64QAM	相对400G,距离不变,容量翻倍

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