ILX Lightwave LDX-32420 User Manual page 89

5
C H A P T E R
value set by the corresponding MODE setpoint. Turn on the function generator
(modulation source) to inject the modulation signal.
To disable the output, press the OUTPUT push button again. When the LDX-
32420 current output is off, an internal short is placed across the output. This
short will prevent the modulation signal from reaching the LED. Thus, it is safe to
disconnect the test device when the LDX-32420's output is off, regardless of the
presence of the modulation signal.
72
 LDX-32420
FU N C T I O N S A N D FE A T U R E S
Modulating the Laser Current Source