3.6 ITC5xx specific commands
ITC500 / page 79
3.6.12 Reading the optical power from the display (POPTP)
Syntax:
":POPTP:ACT?"
Response:
[:POPTP:ACT <NR3>]
Description: Queries the actual optical power, that is calculated from the position of
the potentiometer marked ADJ next to the LED P
LD
. This is the optical
power shown on the display. Unit: [W]
NOTE
This queries the optical power measured by the internal monitor diode that
is displayed on the 4 ½ digit display.
3.6.13 Reading the laser diode voltage (VLD)
Syntax:
":VLD:ACT?"
Response:
[:VLD:ACT <NR3>]
Description: Queries the actual laser diode voltage. Unit: [V]
3.6.14 Reading the bias voltage (VBIAS)
Syntax:
":VBIAS:ACT?"
Response:
[:VBIAS:ACT <NR3>]
Description: Queries the actual photo diode bias voltage. Unit: [V]
NOTE
This query always tells the bias voltage set with the potentiometer ADJ
next to the LED PD BIAS even with the bias voltage switched off.
Summary of Contents for ITC502
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