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Testing polarization mode dispersion (PMD)

An overview of general dispersion phenomena occurring in fiber-optic communications, as well as the problems caused specifically by polarization mode dispersion (PMD). It also covers the internal workings of EXFO’s PMD analyzer and explains how to interpret the result obtained with the instrument.

1 day
Live online


This course covers

Hands-on exercises on PMD analysis and result interpretation are also included in the curriculum.

  • Dispersion phenomena
  • Basic principles of PMD
  • Causes of PMD in the fiber
  • Effects of PMD on the fiber
  • Different types of dispersion
  • First-order vs. second-order PMD
  • EXFO’s PMD measurement method
  • PMD measurements using EXFO’s PMD analyzer
  • Result analysis using pass/fail thresholds


Basic comprehension of math and physics
Basic loss tests (IL and ORL)


The first part of this course consists of lectures using PowerPoint presentations and demonstrations, while the second part provides practical training with hands-on PMD testing exercises. The course also covers total PMD measurement, coefficient calculation, pass/fail result analysis using thresholds, and result interpretation.


Attendees will receive a binder containing copies of presentations and other handouts.