EXFO IQS-2400 WDM Laser Source for IQS-500/600 - Manual (Page 31)

Setting Up the WDM Laser Source
WDM Laser Source 25
Setting Modulation (for Dither and On/Off Modulation)
4. From the Frequency section, if you have selected internal
synchronization, you can adjust the modulation frequency of the laser
signal emitted by the source. For information on how to use the
controls, see Entering Values Using Sliders and Numeric Boxes on
page 19.
Note: You cannot edit fine-tuning values or add new values.
5. If you have selected the Dither Modulation control mode, you can
configure depth and waveform of the modulation signal as follows:
5a. Select the desired waveform (square or triangular) from the
Waveform panel.
5b. Specify the desired modulation signal depth with the Depth
controls.
Note: You cannot edit fine-tuning values or add new values.
Current
frequency
Fine-tuning values