EXFO IQS-2100 Light Source for IQS-500/600 - Manual (Page 28)

Setting Up Your Light Source
22 IQS-2100
Selecting a Modulation Frequency
Selecting a Modulation Frequency
You can modulate the laser output of the IQS-2100 Light Source to simulate
data transfer. A number of modulation frequencies are available.
To select a modulation frequency:
1. Select a modulation frequency by choosing a value in the Modulation
panel, as shown in the following figure.
A green light identifies the selected modulation frequency.
To indicate a successful selection, Stabilization in progress appears
in the data display (only if the source is an active laser).
The Modulation value indicator in the data display indicates the source
modulation frequency selected.
2. You can also select a modulation frequency from the QuickTools utility.
For details, see Monitoring Light Source Modules on page 29.
Note: The internal modulation is full on/off modulation at a 50 % duty cycle.
Modulation
value indicator