Acquiring traces – EXFO FTB-5500B PMD Analyzer User Manual
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Operating the Polarization Mode Dispersion Analyzer
Polarization Mode Dispersion Analyzer
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Acquiring Traces
Acquiring Traces
The Polarization Mode Dispersion Analyzer allows you to acquire single or
multiple traces on a specific fiber. The results are displayed after each
acquisition, which means that, in the multiple measurement mode, if you
enter five as the number of acquisitions to be performed, the graph and
grid content will be updated five times with new results.
Many devices designed to measure PMD are based on the interferometric
method. This method supposes that the obtained curves correspond to
Gaussian interferograms. The patented design of the Polarization Mode
Dispersion Analyzer proposes a new approach.
To help you making links between the two methods, the application
provides you with a Gaussian compliance factor. This factor, multiplied by
the obtained PMD value, will give you the value you would obtain with a
Gaussian-based approach.
To start an acquisition:
1. Set acquisition parameters as described in Setting Acquisition
2. Verify that the fiber (DUT) is properly connected, that the setup is
appropriate, and that the source is activated.
3. From the button bar, click Start to start a measurement sequence.