July 09, 2019

Ultra-Wideband Transmission Systems based on Semiconductor Optical Amplifiers

  • Achouche M.
  • Arnould A.
  • Blache F.
  • Brindel P.
  • Ghazisaeidi A.
  • Le Gac D.
  • Makhsiyan M.
  • Renaudier J.

Extending the bandwidth of optical transport systems is a promising approach to increase the throughput of wavelength division multiplexed (WDM) systems. We review recent ultra-wideband (UWB) experiments and discuss the interest of using UWB semiconductor optical amplifiers (SOA) for future transmission systems. We report on UWB SOA characteristics and discuss recent results of a 300 km transmission experiment over standard single mode fiber (SSMF), using a hybrid Raman and SOA repeater.

View Original Article

Recent Publications

May 01, 2020

A Packaged 0.01-26-GHz Single-Chip SiGe Reflectometer for Two-Port Vector Network Analyzers

  • Chung H.
  • Ma Q.
  • Rebeiz G.
  • Sayginer M.

© 1963-2012 IEEE. This article presents a packaged SiGe BiCMOS reflectometer for 0.01-26-GHz two-port vector network analyzers (VNAs). The reflectometer chip is composed of a resistive bridge coupler and two wideband heterodyne receivers for coherent magnitude and phase detection. In addition, a high-linearity receiver channel is designed to accommodate 20 ...

August 01, 2019

Protecting photonic quantum states using topology

  • Blanco-Redondo A.

The use of topology to protect quantum information is well-known to the condensed-matter community and, indeed, topological quantum computing is a bursting field of research and one of the competing avenues to demonstrate that quantum computers can complete certain problems that classical computers cannot. In photonics, however, we are only ...

May 01, 2019

Digital networks at the nexus of productivity growth

  • Kamat S.
  • Prakash S.
  • Saniee I.
  • Weldon M.

This paper takes a fresh look at the debate over the relationship between digital technology and productivity. The argument of economic historian Robert J. Gordon is that digital technology will not lead to increases in productivity such as we saw in the last century, based on his analysis of the ...