ILX Lightwave LDX-32420 User Manual page 80

LASer:SET:LDI?
Examples
LASer:SET:MDI?
Notes
Examples
LASer:SET:MDP?
Examples
LASer:STEP <step size>
LASer:STEP?
Parameters
Notes
Examples
01_10
LDX-32420 Device-Dependent Command Reference
The LASer:SET:LDI? query returns the constant current setpoint value that is used for
both output ranges and both bandwidths.
- where the response is the constant I setpoint value, in A.
"LAS:SET:LDI?" - response: 5.000, means the laser output current setpoint value is
5.000 A.
The LASer:SET:MDI? query returns the laser monitor photodiode current setpoint value
(when CALPD=0), in µA.
The monitor photodiode current is directly proportional to the laser optical output power.
Therefore, the MDI (I ) setpoint may be used to control optical output of the laser.
PD
"las:set:mdi?" - response: 30.0, means the laser monitor photodiode current is setpoint
is 30 µA, for use in constant P mode with CALPD = 0.
The LASer:SET:MDP? query returns the laser monitor photodiode power setpoint value
(when CALMD [CAL PD] is not zero), in mW.
- where the response is the constant P
"LAS:Set:MDP?" - response: 10.0, means the laser monitor photodiode feedback
setpoint is 10.0 W (CALPD>0).
The LASer:STEP command is used to increment or decrement the selected laser control
mode setpoint by the given amount, when used with the LASer:INC or LASer:DEC
command.
The LASer:STEP? query is used to read back the LASer STEP value.
Step size: an integer value in the range 1 to 9999 that is multiplied by resolution to
determine the step size.
The step of one corresponds to the smallest display resolution for the mode. For
example, a step of one means 0.001 A, 0.01 W, or 1 µA.
"Las:Mode:i; Las:ldi 5; Las:Step 100; Las:Inc; Las:set:ldi?" -action: sets the step to
0.100 A, so the Las:set:ldi? query will return a value of 5.100 A.
"Las:Mode:LDI; Las:Step?" - response: 1 means the step size is 0.001 A, since Const
Current mode is in effect.
C O M M A N D R E F E R E N C E
setpoint, in mW.
PD
4
C H A P T E R
F P
RONT ANEL
R
EMOTE
F P
RONT ANEL
R
EMOTE
F P
RONT ANEL
R
EMOTE
F P
RONT ANEL
R
EMOTE
63
LDX-32420
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