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English

End of Dispersion: Myth or reality?

  • February 6, 2014

Gwenn Amice

Subject Matter Expert, Physical layer and monitoring, EXFO

Gwenn Amice served in the French Navy before joining the Opto-electronic R&D telecom industry in 1995 aboard a startup that became the CISCO DWDM transport platform pillar.

As the development of new high-speed technologies evolved, he introduced new DWDM transport platforms in industrialization, production, customer demonstration and field deployment in Europe, Asia and Americas until he moved to Canada in 2000.

After a one-year experience as outside plant Engineer for Vidéotron in Montréal, he joined EXFO in 2001 as Subject Matter Expert, focusing on next generation optical networks and acting as a technical advisor to EXFO’s customers.

Since 2019 Gwenn Amice has been appointed Senior member of technical staff representing EXFO at industry standard events and interfacing with EXFO product development groups.

Mr. Amice holds a university degree in electrical engineering and industrial computing, and he is a member of the Broadband Forum Americas Technology Committee

Optical testing and monitoring

When upgrading metro networks from 1 to 10 GigE, the distortions induced by chromatic dispersion and polarisation mode dispersion will limit the distance that can be attained. When upgrading core networks from 10 (OTU2, 10 GigE, etc.) to 100 (OTU3, 100 GigE, etc.) and soon to 400 Gbit/s, coherent systems will be able to post-compensate the linear distortions, but to what extent. What are the limits? What are the best fiber-characterization practices?

In this Webinar, we are going to reveal the myths and realities about the critical parameters that need to be controlled when deploying hybrid systems, such as 10 Gbit/s (NRZ) and 100 Gbit/s (DP-QPSK), including:

  • Guard bands
  • Dispersion compensation
  • Nonlinear effects