User Manual

Managing Results
44 FTB-5800
Analyzing Results from the Results Graph
Even if you have acquired your results with a particular type of data fitting,
during your analysis, you may want to apply another type of fit. You should
select the type of fit you want to apply to your results carefully so as to
minimize error. Some types of fits such as the Cubic and 5-Term Sellmeier
should not be used to extrapolate data.
Note: A minimum amount of points must be acquired for the fit to be calculated
and for the dispersion to be displayed. The minimum number of points
varies according to the fit.
The Chromatic Dispersion Analyzer also provides you with tools to help you
focus on certain data in the graph.
³ You can set the marker to a specific point of the graph to view the
results related to this point. Once you have positioned the marker, it
will keep its position for the next acquisition.
³ You can zoom in on specific areas of the graph to have a better view or
zoom out to see extrapolated data. It is also possible to revert to default
zoom manually or automatically when the corresponding option is
activated.
In some cases, it is useful to deactivate the automatic zoom reset. For
example, if you are analyzing a file containing many acquisitions, it
allows you to define the zoom once and then apply it to all traces.
Otherwise, you would have to define the zoom for each trace.