EXFO FTB -5240S/5240BP Optical Spectrum Analyzer - Manual (Page 23)

Preparing Your OSA for a Test
OSA 17
Performing User Calibration
Performing User Calibration
Calibrating your module can help you achieve better results. It is
particularly important when the measurement accuracy is critical or when
your OSA has experienced unusual shock or vibrations. To reach the
highest possible accuracy, you can perform a wavelength or power
calibration. Your OSA allows you to modify and read the user calibration
values, revert to the factory calibration, load and save the modified user
calibration file. The user configuration file (*.txt) contains the reference
and modified wavelength and power values.
You can perform user calibration in any test mode. Select a test mode as
explained in Selecting a Test Mode on page 12, and follow the procedures
mentioned below for performing user calibration.
Note: The procedure for performing user calibration is the same for all test
modes. The procedure is explained with WDM mode only in this document.
Note: If you want to keep the correction factor list for a later use, save it under a
different name in the folder.
Note: The user calibration feature is not available in the offline version of the
application.
I
MPORTANT
For optimal results, you should allow a minimum warm up period
of two hours for your OSA before performing user calibration.
I
MPORTANT
You must clear the correction factor list before making new
calibration measurements. If calibration measurements are made
when user correction factors are inside the module, the latter will
affect the measurements and the calibration results become
inapplicable.