High-speed reach-extended IM-DD system with low-complexity DSP for 6G fronthaul

P Zhu, Y Yoshida, K Akahane… - Journal of Optical …, 2024 - opg.optica.org
With the rising traffic demand from the metaverse, holographic communications, and so on,
in beyond-5G (B5G)/6G cloud radio access networks (C-RANs), fronthaul (FH) networks that …

An analytical model for performance estimation in modern high-capacity IMDD systems

G Rizzelli, P Torres-Ferrera, F Forghieri… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
In this article, we propose an analytical model to estimate the signal-to-noise ratio (SNR)
and then the Bit Error Rate (BER) at the output of a receiver adaptive equalizer in intensity …

Deployment of Ultrasmall-Size Cluster-Assisting Lookup Tables in IM/DD Systems

F **e, X Huang, S Liu, D Tang, C Bai… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
In the C-band high-speed long-reach optical intensity modulation direct detection (IM/DD)
communication system, severe signal distortion, including chromatic dispersion and device …

Simplified Look-Up Table (LUT) Based Digital Pre-Distortion for 100 GBaud/λ PAM-4 Transmission

Y Tu, M **ang, W Cheng, H Yang… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Look-up table (LUT) is an efficient digital pre-distortion (DPD) technique at the transmitter
side (Tx) to mitigate the pattern-dependent impairment arising in the intensity-modulation …

End-to-end optimization of optical communication systems based on directly modulated lasers

S Hernandez, C Peucheret, F Da Ros… - Journal of Optical …, 2024 - opg.optica.org
The use of directly modulated lasers (DMLs) is attractive in low-power, cost-constrained
short-reach optical links. However, their limited modulation bandwidth can induce waveform …

All-Optical Time-Extended OCDM-PAM4 for 200 Gbps/λ O-Band Multi-Span Transmission

R Maneekut, DJ Elson, Y Wakayama… - IEEE …, 2024 - ieeexplore.ieee.org
This paper presents an all-optical time-extended optical code division multiplexing (TE-
OCDM) system using two different optical en/decoders (E/Ds). The proposed system …

End-to-end Optimization of Optical Communication Systems based on Directly Modulated Lasers

C Peucheret, F Da Ros, D Zibar - arxiv preprint arxiv:2405.09907, 2024 - arxiv.org
The use of directly modulated lasers (DMLs) is attractive in low-power, cost-constrained
short-reach optical links. However, their limited modulation bandwidth can induce waveform …

Reach Extension of a 53.12 Gbps PAM-4 IM/DD Signals With Optimized Extinction Ratio in Amplified Multi-Span O-Band Transmission

R Maneekut, DJ Elson, Y Wakayama… - IEEE …, 2024 - ieeexplore.ieee.org
This paper explores, through the utilization of analytical models and simulations, the bit error
rate (BER) of 400GBASE-LR8/ER8 in back-to-back configuration, considering various …

Hardware-Efficient and Reliable Coherent DSCM Systems Enabled by Single-Pilot-Tone-Based Polarization Demultiplexing

W Wang, L Chen, D Zou, W Ni… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Recently, coherent digital subcarrier multiplexing (DSCM) technology has become an
attractive solution for next-generation ultra-high-speed datacenter interconnects (DCIs). To …

Multi-Tap Optical Delay Line-Based Optical-Electrical Dispersion Compensation Scheme in High-Speed IM/DD Systems

X Huang, F **e, W Zuo, Y Qiao - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Digital equalizer-assisted optical signal processors based on optical delay line (ODL) offers
an efficient solution for chromatic dispersion (CD) compensation in intensity …