Co-packaged optics (CPO): status, challenges, and solutions

M Tan, J Xu, S Liu, J Feng, H Zhang, C Yao… - Frontiers of …, 2023 - Springer
Due to the rise of 5G, IoT, AI, and high-performance computing applications, datacenter
traffic has grown at a compound annual growth rate of nearly 30%. Furthermore, nearly three …

A 50-Gb/s PAM-4 silicon-photonic transmitter incorporating lumped-segment MZM, distributed CMOS driver, and integrated CDR

Q Liao, Y Zhang, S Ma, L Wang, L Li… - IEEE Journal of Solid …, 2021 - ieeexplore.ieee.org
This article presents a 50-Gb/s optical transmitter (TX), consisting of a 40-nm distributed
CMOS driver and a 180-nm silicon-photonic modulator. A lumped-segment Mach–Zehnder …

The truth about 2-level transition elimination in bang-bang PAM-4 CDRs

M Verbeke, G Torfs, P Rombouts - IEEE Transactions on …, 2020 - ieeexplore.ieee.org
Reception of 4-level pulse amplitude modulation (PAM-4) requires a clock and data
recovery (CDR) circuit, typically implemented by a PLL-like structure. An essential block in …

A 50-Gb/s PAM4 Si-photonic transmitter with digital-assisted distributed driver and integrated CDR in 40-nm CMOS

Q Liao, N Qi, M Li, S Hu, J He, B Yin… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
A 50-Gb/s four-level pulse-amplitude modulation (PAM4) silicon photonic transmitter is
presented, which is composed of a 40-nm bulk CMOS driver hybrid integrated with a 180-nm …

Low jitter design for quarter-rate CDR of 100Gb/s PAM4 optical receiver

S **e, C Jia, L Mao, G Zhou, N Zhang… - IEICE Electronics …, 2022 - jstage.jst.go.jp
In the ultra-high speed four-level pulse amplitude modulation (PAM4) optical receiver, the
data phase jitter is deteriorated by inter-symbol interference (ISI), level transitions and …

An inductorless 20-Gbaud overshoot suppression modulator driver using interleave frequency variant feedback in 90-nm CMOS

S Hong, SSH Hsu - IEEE Transactions on Microwave Theory …, 2022 - ieeexplore.ieee.org
An inductorless modulator driver with effective overshoot suppression and a large swing for
high-speed optical communications is presented. A novel interleave frequency variant …

Co-design of Si-Photonic Segmented Mach-Zehnder Modulators and Distributed CMOS Drivers for Co-packaged Optics

S Ma, Y Ma, Q Ma, G Li, N Wu… - 2024 Photonics & …, 2024 - ieeexplore.ieee.org
The demand for higher data rates and lower power consumption in data centers has driven
the development of co-packaged optics (CPO). This paper presents challenges and benefits …

A 28Gbaud/s 4Vpp PAM4 MZ Modulator Driver in 0.13\mu\mathrm {m} $ SiGe BiCMOS Technology

L Li, Y Chen, E Zhu - 2020 IEEE 5th International Conference …, 2020 - ieeexplore.ieee.org
A 28Gbaud/s PAM4 large-swing optical modulator driver is designed in 0.13-μm SiGe
BiCOMS technology. The designed driver includes variable gain amplifier, continuous time …

A low power CMOS driver integrated with Mach-Zehnder modulator for PAM4 optical transmissions

TH Lee, J Zhang, S Hong, CH Hsu… - 2020 50th European …, 2021 - ieeexplore.ieee.org
In this paper, we design a wideband driver in 65nm CMOS and integrate with the MZM
(Mach-Zehnder Modulator) and bias network to demonstrate high speed electrical-optical …