EXFO IQS-2600B Tunable Laser Source for IQS Platforms - Manual (Page 29)

Setting Standard Parameters
Tunable Laser Source 23
Setting the Power
Retrieving Power Step Value from a Stored List
To select a power step value from the list of existing values:
In the Instrument function tab, use the arrow buttons next to the Power
(dBm) panel’s Step list to select the value you want.
To add a wavelength to the list, see Adding Items to Lists on page 24.
Using the Slider
You can select a power value by using the slider in the Instrument function
tab.
For a more precise adjustment of your values, use the arrow buttons under
the slider.
Note: The power you select will affect the sweep range available. For example,
setting the power at 0 dBm will give you a range from 1515 nm to 1610 nm,
and setting the power at 10 dBm will give you a range of 1510 nm to
1612 nm. Please keep this in mind as you set the power for your sweep.