Real-Time Unrepeated Long-Span Field Trial over Deployed 4-Core Fiber Cable Using Commercial 130-Gbaud PCS-16QAM 800 Gb/s OTN Transceivers

Real-Time Unrepeated Long-Span Field Trial over Deployed 4-Core Fiber Cable Using Commercial 130-Gbaud PCS-16QAM 800 Gb/s OTN Transceivers

The space-division multiplexed (SDM) transmission technique based on uncoupled multi-core fibers (MCF) shows great implementation potential due to its huge transmission capacity and compatibility with existing transceivers. In this paper, we demonstrate a real-time single-span 106 km field trial ove...

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Main Authors: Jian Cui, Chao Wu, Zhuo Liu, Yu Deng, Bin Hao, Leimin Zhang, Ting Zhang, Yuxiao Wang, Bin Wu, Chengxing Zhang, Jiabin Wang, Baoluo Yan, Li Zhang, Yong Chen, Xuechuan Chen, Hu Shi, Lei Shen, Lei Zhang, Jie Luo, Yan Sun, Qi Wan, Cheng Chang, Bing Yan, Ninglun Gu
Format: Article
Language:English
Published: MDPI AG 2025-03-01
Series:Photonics
Subjects:
multi-core fiber
unrepeated transmission
real-time
optical network
field trial
Online Access:https://www.mdpi.com/2304-6732/12/4/319
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Summary:The space-division multiplexed (SDM) transmission technique based on uncoupled multi-core fibers (MCF) shows great implementation potential due to its huge transmission capacity and compatibility with existing transceivers. In this paper, we demonstrate a real-time single-span 106 km field trial over deployed 4-core MCF cable using commercial 800 Gb/s optical transport network (OTN) transceivers. The transceivers achieved a modulation rate of 130 Gbaud with the optoelectronic multiple-chip module (OE-MCM) packaging technique, which enabled the adoption of a highly noise-tolerant probability constellation shaping a 16-array quadrature amplitude modulation (PCS-16QAM) modulation format for 800 Gb/s OTN transceivers, and could realize unrepeated long-span transmission. The 4-core 800 Gb/s transmission systems achieved a real-time transmission capacity of 256 Tb/s with fully loaded 80-wavelength channels over the C+L band. The performance of different kinds of 800 G OTN transceivers with different modulation formats under this long-span unrepeated optical transmission system is also estimated and discussed. This field trial demonstrates the feasibility of applying uncoupled MCF with 800 Gb/s OTN transceivers in unrepeated long-span transmission scenarios and promotes its field implementation in next-generation high-speed optical interconnection systems.
ISSN:2304-6732

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