Exfo FTB-5600 Distributed PMD Analyzer Manual do Utilizador descarregar pdf (Página 128)

Optimizing Measurements

122 FTB-5600

Use a Larger Number of SOPs and Wavelengths

This will ensure that the instrument can access close to a maximum

available wavelength number from the instrument. More SOPs can also

improve the measurement accuracy for RMS DGD in the available

wavelength range.

A maximum wavelength range and as many SOPs as possible for the

acquisition will reduce the uncertainty of a measurement (that is, to

achieve a minimum measurement uncertainty).

Note: At least 100 or 200 SOPs should be used for obtaining a meaningful

cumulative PMD curve as a function of distance, and more SOPs. For

example, 500 to 1000, is recommended in order to make a better and

clearer picture of cumulative PMD.

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Exfo FTB-5600 Distributed PMD Analyzer Manual do Utilizador Página 128