EXFO IQS-2600B Tunable Laser Source for IQS Platforms - Manual (Page 37)

Setting Sweep Parameters
Tunable Laser Source 31
Selecting the Sweep Mode
Using the Stepped Mode
To select the Stepped sweep mode, click the appropriate button in the
Sweep tab of the Settings function tab.
To add or delete steps from the lists, see Adding Items to Lists on page 24
and Deleting Items from Lists on page 25.
You can also set the Pause length between the steps by entering the
desired value.