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Chromatic dispersion testing

An overview of general dispersion phenomena occurring in fiber-optic communications, as well as the problems caused specifically by chromatic dispersion (CD).

1 day
Live online


This course covers

Attendees will learn how to differentiate various types of fiber and how to compensate for CD. The course also describes the internal workings of EXFO’s CD analyzer and explains how to interpret the results obtained with the instrument. Hands-on exercises on CD analysis and result interpretation are also included in the curriculum.

  • Dispersion phenomena
  • Basic principles of CD
  • Causes of CD in fiber
  • Effects of CD on fiber
  • CD measurements using EXFO’s CD analyzer


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 CD measurement, coefficient calculation, pass/fail result analysis using thresholds and result interpretation.


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