ILX Lightwave LDX-36000 Series User Manual page 96

5
C H A P T E R
LASer:CALP <nrf value>,<nrf value>
Action
Parameters
Notes
Examples
LASer:CALP?
Action
Parameters
Notes
Examples
80
 LDX-36000 Series
C O M M A N D R E F E R E N C E
Command Reference
Specifies the slope efficiency and threshold values for the laser diode currently attached
to the LDX-36000. These values are used while Display 1 is in Power Mode. In this
mode, the display indicates the optical power output based on the laser current setpoint.
Two <nrf values>. The first parameter is the laser slope efficiency in Watts per Amp and
the second parameter is threshold in Amps . The slope efficiency range is 0.01 to 20.0.
The threshold range is 0.00 to the maximum output possible for the specific model
current source being used.
The default values for slope efficiency and threshold are 0.01 and 0.0, respectively.
When the default values are entered and Display 1 is configured to show power, dashes
"- - -" will be displayed.
When a nonzero value for threshold is entered, the power display will revert to a
calculated value based on the current output current setpoint and the threshold and
slope efficiency values. If the current setpoint is less than the threshold value, Display 1
will show LO-xx where xx is percentage below threshold.
"las:calp 0.45, 4.5" -action: Sets the laser slope efficiency and threshold to 0.45 W/A and
4.5 A, respectively for use with Display 1 configured to display optical power.
"LAS:CALP 0.01, 0" -action: Disables control of output current based on optical power
by setting slope efficiency to 0.01 W/A and threshold to 0 A.
Returns the values for slope efficiency and threshold in units of Watts per Amp and
Amps, respectively.
None.
The default values for slope efficiency and threshold are 0.01 and 0.0, respectively.
When the default values are entered and Display 1 is configured to show power, dashes
"- - -" will be displayed.
When a nonzero value for threshold is entered, the power display will revert to a
calculated value based on the current output current setpoint and the threshold and
slope efficiency values. If the current setpoint is less than the threshold value, Display 1
will show LO-xx where xx is percentage below threshold.
"las:calp?" -response: 1.56, 3.2; meaning a value of 1.56 W/A has been entered for the
laser slope efficiency and the laser has a threshold of 3.2 A.
C
OMMON
F P
RONT ANEL
D D
EVICE EPENDENT
C
OMMON
F P
RONT ANEL
D D
EVICE EPENDENT