The Light Brigade releases fiber characterization course

NOVEMBER 8, 2007 -- "Fiber Characterization: PMD, CD, and ORL," is a three-day course designed to provide the classroom instruction necessary to understand the theory and principles of fiber characterization.

NOVEMBER 8, 2007 -- The Light Brigade (search for Light Brigade) has announced the newest addition to its arsenal of fiber-optic training courses. "Fiber Characterization: PMD, CD, and ORL," is a three-day course designed to provide the classroom instruction necessary to understand the theory and principles of fiber characterization. It includes hands-on instruction on fiber-optic splicing, connector inspection and cleaning, span testing, and documentation.

Transmission equipment manufacturers often will not guarantee the performance of their systems unless polarization mode dispersion (PMD), chromatic dispersion (CD), and optical return loss (ORL) tests have been documented. These tests require an understanding of the importance of optical cleanliness of the optical connections as well as how to properly perform reflection measurements using an optical time-domain reflectometer (OTDR).

The three-day course is arranged as follows:


  • Day one of the course includes classroom review of basic optical theory, standards, transmission basics, fiber types, connectors, test equipment, installation, systems, and the theory and principles of dispersion.
  • Day two focuses on OTDRs, detailing the types available and how they function, as well as giving practical experience with OTDR calibration and setup, loss measurement, and the proper use of deadzone boxes and terminators for reflectance measurement.
  • During day three, attendees will build an 80-km span using G.655 fiber (at 1,550 nm), and a 50-km span using G.652 fiber (at 1,310 nm). After testing and documenting these spans for PMD and CD, the attendees will insert dispersion-compensating modules into each span and then re-test for the new dispersion values.

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