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2014年2月6日

End of Dispersion: Myth or reality?

Gwenn Amice

Subject Matter Expert, Physical layer and monitoring, EXFO

Gwenn Amice currently holds the position of Subject Matter Expert, Physical layer and monitoring with EXFO inc, which he joined in 2001. His main responsibilities consist of giving technical seminars, trainings, support and technical advices to EXFO’s customers.

After 2 years in the French Navy, Mr. Amice began his professional career in 1994 as an optoelectronics developer with a French subsidiary of Italian-based Pirelli Cavi Group.

During 6 years at Pirelli Optical System (now part of CISCO group) he was heavily involved in the WDM technology development, acting as Product Engineer, and project manager for DWDM deployment in Europe, Americas and Asia.

He left Europe for Canada in 2000, where he joined the Network Engineering Department at Videotron Telecom before joining EXFO in 2001.

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

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