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Understanding CD and PMD tests

  • mayo 12, 2020

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

The increasing demand for anytime, anywhere connectivity is stretching network bandwidth limits and the fiber network must be ready to support this greater density of information.

In recent years, fiber optic transmitter technology has evolved, pushing the boundaries of the impossible to the possible via smaller, faster, cheaper transceivers. But what about the fiber itself? Is the bandwidth that fiber can support infinite?
The obvious answer is “no”. In fact, even singlemode fiber has significant limitations in the form of dispersion, namely chromatic dispersion (CD) and polarization mode dispersion (PMD) and induced nonlinear effects (NLE).

This webinar will equip you with the much-needed insight for making more informed decisions on when to test CD and PMD.

Key takeaways:

  • Understanding the nature and effects of CD, PMD and NLE through graphical interpretation
  • Best practices for complete fiber characterization, with focus on CD and PMD
  • Understanding the impact of CD and PMD on next-generation transceivers throughout the network

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