Nanosecond optical switching and control system for data center networks

X Xue, N Calabretta - Nature communications, 2022 - nature.com
Electrical switching based data center networks have an intrinsic bandwidth bottleneck and,
require inefficient and power-consuming multi-tier switching layers to cope with the rapid …

Efficient preamble design and digital signal processing in upstream burst-mode detection of 100G TDM coherent-PON

J Zhang, Z Jia, M Xu, H Zhang… - Journal of Optical …, 2021 - opg.optica.org
Coherent optics has been proved to be a promising candidate for 100 Gb/s and even
beyond single-wavelength time-division multiplexing passive optical networks (TDM-PONs) …

Demonstration of PS-QAM based flexible coherent PON in burst-mode with 300G peak rate and ultra-wide dynamic range

S Xing, G Li, A Sun, J Chen, Z He… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Coherent passive optical network (PON) has been proposed to support the next generation
high-speed optical access network owing to the superior receiver sensitivity and thereby the …

25.6 Tbps capacity and sub-µsec latency switching for datacenters using> 1000-port optical packet switch architectures

A Tsakyridis, N Terzenidis… - IEEE Journal of …, 2020 - ieeexplore.ieee.org
We discuss the challenges and limitations of current electrical DataCenter switches towards
scaling beyond the 25.6 Tb/s capacity-era while meeting a low-latency and high-radix …

WR-enhanced TDM-PON with nanosecond clock and data recovery and picosecond time synchronization

Y Zhao, X Xue, B Guo, C Yang, R Wen… - Journal of Optical …, 2024 - opg.optica.org
Access networks require higher bandwidth and throughput to handle rapidly increasing
traffic. However, in the time-division multiplexing passive optical network (TDM-PON) …

Real-time FPGA demonstration of PAM-4 burst-mode all-digital clock and data recovery for single wavelength 50G PON application

J Zhang, X Xiao, J Yu, JS Wey, X Huang… - Optical Fiber …, 2018 - opg.optica.org
Real-Time FPGA Demonstration of PAM-4 Burst-Mode All- Digital Clock and Data Recovery
for Single wavelength 50G PON Application Page 1 M1B.7.pdf OFC 2018 © OSA 2018 Real-Time …

O-band energy-efficient broadcast-friendly interconnection scheme with SiPho Mach-Zehnder modulator (MZM) & arrayed waveguide grating router (AWGR)

S Pitris, C Mitsolidou, T Alexoudi… - 2018 optical fiber …, 2018 - ieeexplore.ieee.org
We present an O-band energy-efficient broadcast-friendly optical architecture relying on a
silicon photonics broadband MZM and an 8× 8 AWGR. Experimental validation is …

Study of burst-mode adaptive equalization for> 25G PON applications

G Coudyzer, P Ossieur, L Breyne… - Journal of Optical …, 2020 - opg.optica.org
In anticipation of emerging applications such as business services, 5G, and the Internet of
Things, research and standardization are working together towards next-generation 25/50 …

28 Gbaud PAM-4 Burst-Mode CDR With Reconfigurable Sampling Scheme

Z Gu, X Bi - IEEE Transactions on Circuits and Systems I …, 2023 - ieeexplore.ieee.org
This paper presents a fast-locking 28 Gbaud PAM-4 CDR targeting for burst-mode
operation. By implementing an oversampling scheme tailored for the preamble stage signal …

Real-Time Demonstration of a Digital Interpolator-Free Clock Recovery for an FPGA-Based PM-QPSK Coherent Optical Receiver

C Ju, N Liu, Q Luo, X Liang, Z Li, N Feng… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
A low-complexity digital interpolator-free clock recovery architecture with analog and digital
coprocessing is proposed. Wide-range sampling clock offset is captured by using timing …