Coherent data center links

JK Perin, A Shastri, JM Kahn - Journal of Lightwave Technology, 2020 - ieeexplore.ieee.org
As link bit rates within and between data centers continue to increase, it is challenging to
maintain low power consumption while accommodating ever-tighter optical link budgets …

Data center links beyond 100 Gbit/s per wavelength

JK Perin, A Shastri, JM Kahn - Optical Fiber Technology, 2018 - Elsevier
Increased traffic demands within and between data centers now necessitate low-cost and
low-power systems with per-wavelength bit rates beyond what can be easily achieved using …

First demonstration of an O-band coherent link for intra-data center applications

A Maharry, J Liu, S Misak, H Andrade… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
We report the first demonstration of a full O-band coherent link for intra-data center
applications, including custom photonic and electronic integrated circuits for the transmitter …

Multi-Tb/s-per-fiber coherent co-packaged optical interfaces for data center switches

B Buscaino, BD Taylor, JM Kahn - Journal of Lightwave Technology, 2019 - opg.optica.org
Co-packaging of optical and electronic interfaces inside data center switches has been
proposed to reduce the system-level power consumption and support higher density, higher …

Design of low-power DSP-free coherent receivers for data center links

JK Perin, A Shastri, JM Kahn - Journal of Lightwave Technology, 2017 - opg.optica.org
Coherent detection offers high spectral efficiency and receiver sensitivity, but digital signal
processing (DSP)-based coherent receivers may be prohibitively power hungry for data …

A comparative study of technology options for next generation intra-and inter-datacenter interconnects

M Morsy-Osman, DV Plant - 2018 Optical Fiber …, 2018 - ieeexplore.ieee.org
A Comparative Study of Technology Options for Next Generation Intra- and Inter-datacenter
Interconnects Page 1 W4E.1.pdf OFC 2018 © OSA 2018 A Comparative Study of Technology …

400G and beyond: Coherent evolution to high-capacity inter data center links

E Maniloff, S Gareau, M Moyer - 2019 Optical Fiber …, 2019 - ieeexplore.ieee.org
Coherent data transmission applications to the data center interconnect space are
presented. We discuss methods of increasing the data rate beyond 400Gb/s, and the …

Analog coherent detection for energy efficient intra-data center links at 200 Gbps per wavelength

T Hirokawa, S Pinna, N Hosseinzadeh… - Journal of Lightwave …, 2020 - ieeexplore.ieee.org
As datacenters continue to scale in size, energy efficiency for short reach (<; 2 km) links is a
major factor for networks that may connect hundreds of thousands of servers. We …

DSP-free 'coherent-lite'transceiver for next generation single wavelength optical intra-datacenter interconnects

M Morsy-Osman, M Sowailem, E El-Fiky, T Goodwill… - Optics …, 2018 - opg.optica.org
We propose a DSP-free coherent-lite system that requires neither high-speed DSP nor high-
resolution signal converters for deployment inside datacenters over single mode fiber links …

Low power DSP-based transceivers for data center optical fiber communications (Invited Tutorial)

R Nagarajan, I Lyubomirsky… - Journal of Lightwave …, 2021 - ieeexplore.ieee.org
In this tutorial, we discuss the evolution of the technology deployed for optical interconnects
and the trade-offs in the design of low complexity, low power DSP and implementation for …