Field trial of 24-Tb/s (60 × 400Gb/s) DWDM transmission over a 1910-km G.654.E fiber link with 6-THz-bandwidth C-band EDFAs

Zhang, Anxu; Li, Junjie; Feng, Lipeng; Lv, Kai; Yan, F.; Yang, Yusen; Wang, Haiqiang; Yang, Qifang; Wang, Lingquan; Zhang, Xiaolei; Ding, Shibao; Min, Liang; Yu, Yi; Li, Liangchuan

doi:10.1364/oe.447553

Cited by 16 publications

(3 citation statements)

References 3 publications

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“…Due to the superior transmission performance of the G.654.E fiber in the low-loss C+L bands, several field trials of high-SE WDM systems with 400-Gb/s wavelength channels have been demonstrated by using the G.654.E fiber [28], [29]. Recently, we conducted a real-time field trial in which sixty 100-GHzspaced 400-Gb/s wavelength channels were transmitted in the 6-THz Super-C band, achieving a net system capacity of 24 Tb/s over the longest field-deployed terrestrial point-to-point G.654.E fiber link of 1910 km [30]. Fig.…”

Section: A Measurements Of a Field-deployed Long-haul G654e Linkmentioning

confidence: 99%

Optical Layer Impairments and Their Mitigation in C+L+S+E+O Multi-Band Optical Networks With G.652 and Loss-Minimized G.654 Fibers

Zhang

Liu

et al. 2022

J. Lightwave Technol.

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The combination of multi-band optical transmission and ITU-T G.654 loss-minimized large-effective-area fibers enables superior network performance in the low-loss C+L wavelength bands. As the maximum cut-off wavelength of the G.654 fiber is increased to 1530 nm, from 1260 nm in the commonly used G.652 fiber, the multi-path interference (MPI) resulting from the interplay between the fundamental LP01 mode and the high-order LP11 mode needs to be considered when expanding the multi-band transmission window to cover the S+E+O bands. In this paper, we study optical layer impairments such as the LP01-LP11 mode coupling induced MPI in G.654 fiber, the negative impact of the stimulated Raman scattering (SRS) on the use of optical supervisory channel (OSC) and optical time domain reflectometer (OTDR) in all fiber types, and the four-wave-mixing (FWM) issue in the Oband transmission over G.652 fiber, and discuss the corresponding mitigation techniques. Extensive measurements of G.654.E fibers are made to evaluate the MPI. For impact of MPI, we include it, along with the nonlinear interference, in the generalized Gaussian noise model to accurately assess the link performance, and mitigation strategies are discussed. Additional considerations of diverse optical link conditions on amplification schemes, link distances, and cost constraints are made for provisioning C+L+S+E+O multiband optical networks with the combined use of both G.652 and G.654 fibers, aiming for the optimal utilization of the multi-band transmission in future ultrahigh-capacity optical networks for a wide variety of applications.

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Section: A Measurements Of a Field-deployed Long-haul G654e Linkmentioning

confidence: 99%

Optical Layer Impairments and Their Mitigation in C+L+S+E+O Multi-Band Optical Networks With G.652 and Loss-Minimized G.654 Fibers

Zhang

Liu

et al. 2022

J. Lightwave Technol.

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“…When G.654.E cable carries 100G/200G/400G system, all the core indicators of transmission performance are improved accordingly. Under the premise of the cross-segment configuration of the live network of G.654.E cable and the guarantee of standard margin, the transmission distance of single carrier 400G 16QAM is over 600km for the first time, the transmission distance of • e optical cable [6]. The network test shows that the transmission rate of 100G, 200G, 400G can be achieved in the G.654.E optical fiber environment.…”

Section: China Mobile Engineering Application Casementioning

confidence: 96%

Novel optical fiber assisting computing power network construction

Zhou

et al. 2022

Thirteenth International Conference on Information Optics and Photonics (CIOP 2022)

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The national strategy of “East Data West Computing” is in full swing, and the computing power network will become an important infrastructure. The development of computing power network has put forward higher requirements for backbone network and large data centers. To construct optical base of computing power network needs novel optical fiber technology. For backbone transmission networks, the practical application research results of operators and State Grid have fully proved the application value of G.654.E fiber, which also have provided theoretical and practical basis for the large-scale application of G.654.E fiber and the construction of the next generation backbone network.

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“…Optical transport network (OTN) is bearing great pressure of capacity expansion, continuously evolving towards high-speed and large-capacity transmission [1][2][3][4][5][6]. Nowadays, 400Gb/s/ch have emerged as a promising candidate for the next-generation transport standards, and most of the carriers expect deployment of 400Gb/s/ch to catch up with the increasing traffic demand [7,8]. To keep doubling the fiber capacity along with upgrading of single channel data rate, extended bands beyond traditionally used C band are proposed to be utilized for multi-band transmission.…”

Section: Introductionmentioning

confidence: 99%

Experimental verification of EGN model in 11-THz C+L broadband 400G real-time transmission with digital sub-carrier multiplexing

Tang

Zhao

Chen

et al. 2022

Thirteenth International Conference on Information Optics and Photonics (CIOP 2022)

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To support high-quality network plan, reliable operation and efficient service provisioning, the quality of transmission estimation (QoT-E) tool, which predicts the penalty of transmission impairments, is highly required. Among these channel impairments, non-linear-interference noise (NLIN) in high-speed, large-capacity and long-reach transmission systems with advanced modulation formats and powerful digital signal processing (DSP) algorithms is complex and difficult to be accurately estimated, thus an precise and practical model of NLIN is desperately desired as one of the key components for QoT-E. Nowadays, 400Gb/s/ch combined with multi-band transmission has become a research hotspot achieving larger capacity without deploying new fibers. However, in this multi-band scenario, the interaction of NLIN with the stimulated Raman scattering (SRS) must be properly considered. In this paper, an equivalent attenuation coefficient assisted enhanced Gaussian noise (EGN) model which considers the impact of SRS on the nonlinear interference in C+L band, is proposed and experimentally verified. The real-time experiments of 400Gb/s/ch transmission system in 11-THz C+L band over 14x75 km G.652 and 14x100 km G.654E fiber links are carried out using coherent transponders modulated with 91.6 GBaud digital sub-carrier multiplexing (DSCM) based probabilistic constellation shaping (PCS) 16QAM format, achieving a net spectral efficiency of 4 bit/s/Hz. The experimental results show that the maximum deviation of NLI induced OSNR penalty at different frequencies across the whole C+L band is found to be less than 0.22 dB. This work could potentially provide an effective and accurate tool for QoT-E estimation in broadband C+L or even multiband systems, paving the way for intelligent management and control of high-capacity and flexible optical networks.

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Field trial of 24-Tb/s (60 × 400Gb/s) DWDM transmission over a 1910-km G.654.E fiber link with 6-THz-bandwidth C-band EDFAs

Cited by 16 publications

References 3 publications

Optical Layer Impairments and Their Mitigation in C+L+S+E+O Multi-Band Optical Networks With G.652 and Loss-Minimized G.654 Fibers

Optical Layer Impairments and Their Mitigation in C+L+S+E+O Multi-Band Optical Networks With G.652 and Loss-Minimized G.654 Fibers

Novel optical fiber assisting computing power network construction

Experimental verification of EGN model in 11-THz C+L broadband 400G real-time transmission with digital sub-carrier multiplexing

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