Abstract

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 direct detect and coherent, pluggable optical modules for data center applications. The design trade-offs include the choice of modulation format, baud rate, optical link design, forward error correction, signal shaping and dispersion compensation.

Silicon Photonics-Based 100  Gbit/s, PAM4, DWDM Data Center Interconnects

Radhakrishnan Nagarajan, Mark Filer, Yang Fu, Masaki Kato, Todd Rope, and James Stewart
J. Opt. Commun. Netw. 10(7) B25-B36 (2018)

Demonstration of a low-power, local-oscillator-less, and DSP-free coherent receiver for data center interconnects

Rashmi Kamran, Nandakumar Nambath, Sarath Manikandan, Rakesh Ashok, Rachit Jain, Nandish Bharat Thaker, and Shalabh Gupta
Appl. Opt. 59(7) 2031-2041 (2020)

Optical switching will innovate intra data center networks [Invited Tutorial]

Ken-ichi Sato
J. Opt. Commun. Netw. 16(1) A1-A23 (2024)

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

Mohamed Morsy-Osman, Mohammed Sowailem, Eslam El-Fiky, Tristan Goodwill, Thang Hoang, Stephane Lessard, and David V. Plant
Opt. Express 26(7) 8890-8903 (2018)

Higher-speed PONs based on data center technology and optics [Invited]

Vincent Houtsma and Dora van Veen
J. Opt. Commun. Netw. 16(2) A98-A104 (2024)