ILX Lightwave LDX-36000 Series User Manual page 129

LASer:PWP <nrf value>
Action
Parameters
Notes
Examples
LASer:STEP <nrf value>
Action
Parameters
Notes
Examples
LASer:STEP?
Action
Parameters
Notes
Examples
03_10
Specifies the constant duty cycle QCW pulsewidth.
An <nrf value> specifying the output current pulsewidth in seconds.
When the pulsewidth is specified using the LAS:PW% command, the output frequency
will change as required to maintain constant duty cycle.
If the new value for (command specific parameter) forces the duty cycle or frequency
beyond the operational range of the instrument, the (command specific parameter) will
be clamped to a minimum or maximum value that still allows operation. You may query
the command to determine if the setpoint was out of range.
Changing the pulsewidth is only effective when the instrument is in either QCW-Pulse,
QCW-Trig, or Hard Pulse modes. If an attempt to change pulsewidth is made in any
other mode, the command will be ignored.
"LAS:MODE:PULSE; LAS:DC 5.5; LAS:PWP 95e-3; LAS:F?" -action: places instrument
in QCW-Pulse mode with a duty cycle of 5.5% and a pulsewidth of 950 s. Frequency
query returns a value of 58 Hz.
Increments and decrements selected laser control mode setpoint by the given amount,
when used with the LAS:INC or LAS:DEC command.
An <nrf value> specifying the step amount in Amps, ranging from 0.01 A to the maximum
current output for the specific instrument model.
A step value of 0.01 corresponds to the smallest display resolution for the mode. When
displaying output current, a step of 0.1 corresponds to current step of 100 mA. When
displaying optical power with a nonzero value for the laser threshold, a step of 0.1
corresponds to a power step of 100 mW.
"LAS:LDI 2.0; LAS:STEP 0.5; LAS:INC; LAS:LDI?" -action: set step size to 500 mA so
the LAS:LDI? query will return a value of 2.5 A.
Returns the amount the laser current or optical power setpoint may be incremented or
decremented by the LAS:INC or LAS:DEC commands.
None.
A step value of 0.1 corresponds to the smallest display resolution for the mode. When
displaying output current, a step of 0.1 corresponds to current step of 100 mA. When
displaying optical power with a nonzero value for the laser threshold, a step of 0.1
corresponds to a power step of 100 mW.
"LAS:STEP?" -response: "0.1" means the step size is either 100 mA or 100 mW,
depending on the mode.
C O M M A N D R E F E R E N C E
Command Reference
5
C H A P T E R
C
OMMON
F P
RONT ANEL
D D
EVICE EPENDENT
C
OMMON
F P
RONT ANEL
D D
EVICE EPENDENT
C
OMMON
F P
RONT ANEL
D D
EVICE EPENDENT
113
LDX-36000 Series
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