C O M M A N D R E F E R E N C E
GPIB Command Reference
02_03
LDC-3926339
51
C H A P T E R
4
The LASER:INC command increments the laser constant-current set point by one or more steps. A
second parameter allows the time (in milliseconds) between increments to be set.
Parameters
Two values are required. The first represents the number of steps, and the second is the time in
milliseconds between steps.
Notes
The step size can be set using the LASER:STEP command. Its default value is 1.0 mA.
The first parameter (number of steps) must be an integer between 1 and 50000.
The minimum time to complete one increment is about 10 to 20 msec. Therefore, values for the
second parameter (time between increments) have a practical minimum of 20. The maximum
number of msec is 65535.
Examples
LASER:STEP 0.5; LASER:INC 10,50-action: the step size is set to 0.5 mA, and the set point is
incremented by 0.5 mA ten times, each increment being separated by 50 msec.
The LASER:LDV? query returns the value of the measured laser voltage.
Parameters
None. The response is an <nrf value>.
Notes
Response is the measured Laser output voltage in Volts, regardless of control mode.
This measurement is updated approximately once every 600 msec.
Examples
LASER:ldv?-response: 3.03, means the measured Laser output voltage is 3.03 volts.
Laser:LDV?-response: 1.0, means the measured Laser output voltage is 1.00 volts.
The LASER:LIMit: command path is used to access the laser limit commands.
The following commands may be reached directly from the LASER:LIMit: command path
.
The LASER:LIMit:I command sets the laser current limit value.
Parameters
An <nrf value> which represents the laser limit current, in mA.
Notes
The current limit is in effect in all modes of operation.
Examples
LASER:LIM:I 80-action: the laser current limit is set to 80 mA.
:Laser:Limit:I 160-action: the laser current limit is set to 160 mA.
LASER:INC
LASER:LDV?
LASER:LIMit:
•
LASER:LIMit:I
•
LASER:LIMit:MDP
•
LASER:LIMit:V
•
LASER:LIMit:I?
•
LASER:LIMit:MDP?
•
LASER:LIMit:V?
LASER:LIMit:I
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