Real-time 100 Gbps/λ/core NRZ and EDB IM/DD Transmission over 10 km Multicore Fiber

Lin, Rui; Pang, Xiaodan; Kerrebrouck, Joris Van; Verplaetse, Michiel; Ozoliņš, Oskars; Udaļcovs, Aleksejs; Gan, Lin; Tang, Ming; Fu, Songnian; Schatz, Richard; Westergren, Urban; Popov, Sergei; Liu, Deming; Tong, Weijun; Keulenaer, Timothy De; Torfs, Guy; Bauwelinck, Johan; Yin, Xin; Chen, Jiajia

doi:10.1364/ofc.2018.w2a.19

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…Employing optical dispersion compensation, the 7% overhead (OH) hard decision (HD) FEC limit (i.e., BER = 3.8E-3) and KP4 FEC limit can be achieved for NRZ and EDB signals, respectively, after 10 km transmission. As an extension of our previous work in [20], this paper includes the following two new contributions: (i) we elaborate the in-house designed electrical and optical components for the experiment setup, including the electrical transceivers, the broadband optical transmitter, the MCF and the fan-in/fan-out (FI/FO); and (ii) the experiment results are extensively extended by including the link property and performance of NRZ/EDB signaling over 1 km.…”

Section: Introductionsupporting

confidence: 54%

Real-time 100 Gbps/λ/core NRZ and EDB IM/DD transmission over multicore fiber for intra-datacenter communication networks

Lin¹,

Kerrebrouck²,

Pang³

et al. 2018

Opt. Express

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A BiCMOS chip-based real-time intensity modulation/direct detection spatial division multiplexing system is experimentally demonstrated for both optical interconnects. 100 Gbps/λ/core electrical duobinary (EDB) transmission over 1 km 7-core multicore fiber (MCF) is carried out, achieving KP4 forward error correction (FEC) limit (BER < 2E-4). Using optical dispersion compensation, 7 × 100 Gbps/λ/core transmission of both non-return-to-zero (NRZ) and EDB signals over 10 km MCF transmission is achieved with BER lower than 7% overhead hard-decision FEC limit (BER < 3.8E-3). The integrated low complexity transceiver IC and analog signal processing approach make such a system highly attractive for the high-speed intra-datacenter interconnects.

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Section: Introductionsupporting

confidence: 54%

Real-time 100 Gbps/λ/core NRZ and EDB IM/DD transmission over multicore fiber for intra-datacenter communication networks

Lin¹,

Kerrebrouck²,

Pang³

et al. 2018

Opt. Express

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“…Extensive work has been reported on SDM transmission carrying different modulation formats on DCN links, including NRZ [75][76][77], EDB [75][76][77], PAM4 [78][79][80][81] and DMT [24,82]. In [77], a BiCMOS chip-based real-time 100Gbps/λ/core NRZ and EDB over 10km 7-core MCF SDM interconnects is experimentally demonstrated.…”

Section: B Modulation Formats and Dspmentioning

confidence: 99%

Enabling Technologies for Optical Data Center Networks: Spatial Division Multiplexing

Westergren

Chen

Agrell

et al. 2020

J. Lightwave Technol.

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With the continuously growing popularity of cloud services, the traffic volume inside the data centers is dramatically increasing. As a result, a scalable and efficient infrastructure for data center networks (DCNs) is required. The current optical DCNs using either individual fibers or fiber ribbons are costly, bulky, hard to manage, and not scalable. Spatial division multiplexing (SDM) based on multicore or multimode (few-mode) fibers is recognized as a promising technology to increase the spatial efficiency for optical DCNs, which opens a new way towards high capacity and scalability. This tutorial provides an overview of the components, transmission options, and interconnect architectures for SDM-based DCNs, as well as potential technical challenges and future directions. It also covers the co-existence of SDM and other multiplexing techniques, such as wavelength-division multiplexing and flexible spectrum multiplexing, in optical DCNs.

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“…Commonly used equalization techniques can be divided into two types, the optical methods and the electric schemes. In optical domain, dispersion compensation fiber (DCF), delay interferometer (DI) and other optical devices are utilized [6]- [8]. However, these techniques have a series of problems.…”

Section: Introductionmentioning

confidence: 99%

A Powerful Equalizer Based on Modified SVM Classifier Without Nonlinear Kernel Enabled 100-Gb/s NG-EPON System With 10-G Class

Miao

et al. 2019

IEEE Access

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For the future high-speed next-generation Ethernet passive optical network (NG-EPON) system, the low-cost system could be kept by adopting low bandwidth devices. To compensate for the signal distortion and improve the performance of high-speed bandwidth limited system, we propose a special feature vector construction to achieve a new equalizer scheme based on support vector machines (SVM) classifier. For the first time, we mathematically analyze the model of the bandwidth-limited optical transmission system and theoretically derive the linear separability of the proposed feature vector formed linear hyperplane in 100-Gb/s NG-EPON system. Furthermore, 4×25-Gb/s non-return to zero (NRZ) and 2 × 50-Gb/s four-level pulse amplitude modulation (PAM-4) per wavelength transmission experiments with 10-G class optics system are demonstrated to prove the feasibility of our scheme. The experimental results show that, for 25-Gb/s/λ NRZ transmission, compared to the decision feedback equalizer (DFE) and feed-forward equalizer (FFE), the receiver sensitivity achieved by our scheme can be improved by about 0.5-dB @BER=3.8e-3 with limited training sequence. For the 50-Gb/s/λ PAM-4 case, the SVM-based equalization method improves the receiver sensitivity for about 1-dB. INDEX TERMS Support vector machines (SVM), non-return to zero (NRZ), pulse amplitude modulation (PAM), feature vector construction, next-generation Ethernet passive optical network (NG-EPON).

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Real-time 100 Gbps/λ/core NRZ and EDB IM/DD Transmission over 10 km Multicore Fiber

Abstract: A BiCMOS chip-based real-time IM/DD spatial division multiplexing system is experimentally demonstrated. 100 Gbps/λ/core NRZ and EDB transmission is achieved below 7%-overhead HD-FEC limit after 10 km 7-core fiber with optical dispersion compensation.

Cited by 4 publications

References 4 publications

Real-time 100 Gbps/λ/core NRZ and EDB IM/DD transmission over multicore fiber for intra-datacenter communication networks

Real-time 100 Gbps/λ/core NRZ and EDB IM/DD transmission over multicore fiber for intra-datacenter communication networks

Enabling Technologies for Optical Data Center Networks: Spatial Division Multiplexing

A Powerful Equalizer Based on Modified SVM Classifier Without Nonlinear Kernel Enabled 100-Gb/s NG-EPON System With 10-G Class

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