A beyond-1-Tb/s coherent optical transmitter front-end based on 110-GHz-bandwidth 2: 1 analog multiplexer in 250-nm InP DHBT

M Nagatani, H Wakita, H Yamazaki… - IEEE Journal of Solid …, 2020 - ieeexplore.ieee.org
This article presents an optical transmitter front-end based on 2: 1 analog multiplexer
(AMUX) for beyond-1-Tb/s/carrier coherent optical communications systems. An AMUX is …

110-GHz-bandwidth InP-HBT AMUX/ADEMUX circuits for beyond-1-Tb/s/ch digital coherent optical transceivers

M Nagatani, H Wakita, T Jyo, T Takeya… - 2022 IEEE Custom …, 2022 - ieeexplore.ieee.org
To cope with the rapid growth of communications traffic, 400-Gb/s/ch digital coherent
systems are being deployed in optical core networks. However, further scaling is required …

34-GBd linear transimpedance amplifier for 200-Gb/s DP-16-QAM optical coherent receivers

MG Ahmed, TN Huynh, C Williams… - IEEE Journal of solid …, 2018 - ieeexplore.ieee.org
High spectral efficiency offered by the coherent optical communication links makes them
attractive for the nextgeneration optical communication links. Using advanced modulation …

A 50-GHz-bandwidth InP-HBT analog-MUX module for high-symbol-rate optical communications systems

M Nagatani, H Yamazaki, H Wakita… - 2016 IEEE MTT-S …, 2016 - ieeexplore.ieee.org
An ultra-broadband 2: 1 analog-multiplexer (A-MUX) module has been developed for optical
communications systems with a high symbol rate. The A-MUX IC was designed and …

Real-time demonstration of 100 GbE THz-wireless and fiber seamless integration networks

J Zhang, M Zhu, B Hua, M Lei, Y Cai… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
We propose and experimentally demonstrate a real-time fiber-THz-fiber 2× 2 multiple-input
multiple-output (MIMO) seamless integration system at 340–510 GHz using commercial …

Multiple Tb/s coherent optical transceivers for short reach interconnect

J Zhou, Q Zhang - IEEE Journal of Selected Topics in Quantum …, 2022 - ieeexplore.ieee.org
This paper investigates coherent optical transceivers for short-reach interconnect, where a
local oscillator laser is used to boost received optical signals for high receiver sensitivity. We …

55-nm SiGe BiCMOS distributed amplifier topologies for time-interleaved 120-Gb/s fiber-optic receivers and transmitters

J Hoffman, S Shopov, P Chevalier… - IEEE Journal of Solid …, 2016 - ieeexplore.ieee.org
Two distributed circuits based on MOS-HBT cascodes are reported in a 55-nm SiGe
BiCMOS technology and are aimed at a single-chip time-interleaved transceiver for future 1 …

160-GSa/s-and-Beyond 108-GHz-Bandwidth Over-2-Vppd Output-Swing 0.5-μm InP DHBT 2:1 AMUX-Driver for Next-Generation Optical Communications

R Hersent, A Konczykowska, F Jorge… - IEEE Microwave and …, 2022 - ieeexplore.ieee.org
This letter reports on a 108-GHz bandwidth 0.5-InP DHBT analog-multiplexer-driver (AMUX-
driver). To the best of the authors' knowledge, this 2: 1 AMUX-driver shows unprecedented …

InP DHBT-based distributed amplifier for 100 Gbit/s modulator driver operation

V Hurm, F Benkhelifa, R Driad, R Lösch, R Makon… - Electronics Letters, 2008 - IET
A distributed amplifier for use as a modulator driver in next generation optical data
communication systems has been manufactured using InP double-hetero bipolar transistor …

40-Gb/s OTDM to 4 x 10 Gb/s WDM conversion in monolithic InP Mach-Zehnder interferometer module

S Fischer, M Duelk, M Puleo, R Girardi… - IEEE Photonics …, 1999 - ieeexplore.ieee.org
Transformation of high bit-rate optical time-domain multiplexed (OTDM) signals into a
multitude of lower bit-rate wavelength-division-multiplexed (WDM) channels is demonstrated …