ILX Lightwave LDC-3926339 User Manual page 73

C O M M A N D R E F E R E N C E
4
C H A P T E R
GPIB Command Reference
LASER:MODulation?
Parameters
Notes
Examples
LASER:OUTput
Parameters
Notes
Examples
LASER:OUTput?
Parameters
Notes
Examples
LASER:SET:
LASER:SET:LDI?
Parameters
Notes
Examples
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LDC-3926339
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The LASER:MODulation? query returns the status of the laser modulation switch.
None. The response is an <nrf value>, 1 = on (enabled), 0 = off (disabled).
More than one channel at a time may be modulated by the modulation signal, if desired.
Laser:MODULATION?-response: 0, means that the laser modulation switch is disabled.
LASER:MOD?-response: 1, means that the aser modulation switch is enabled. A signal applied to
the back panel modulation connector will modulate the laser current.
The LASER:OUTput command turns the laser output on or off.
An <nrf value>; 1 = on, 0 = off.
After the laser output is turned on, it may be useful to wait until the output is fully on before
performing further operations, but it is not necessary. When the output is turned on, there is a two
second delay before the output is actually enabled. This delay is a safety requirement.
When a current source output is off, an internal short is placed across the output terminals.
LASER:LDI 20; Laser:out on-action: sets the laser output current to 20 mA and then turns the laser
output on.
Laser:Out 0-action: turns off the laser current source.
The LASER:OUTput? query returns the status of the laser output switch.
None. The response is an <nrf value>.
Although the status of the switch is on, the output may not have reached the set point value.
Laser:OUT?-response: 0, means that the laser output switch is disabled; devices may be safely
disconnected or connected at the laser output terminal.
LASER:OUT?-response: 1, means that the laser output switch is enabled.
The LASER:SET: command path is used to access the laser set point queries.
The following commands may be reached directly from the LASER:SET: command path.
LASER:SET:LDI?
•
LASER:SET:MDI?
•
LASER:SET:MDP?
•
The LASER:SET:LDI? query returns the laser constant-current setpoint. This value is used for both
bandwidth modes (IHBW and ILBW).
None. The response is an <nrf value> which represents the constant I set point value, in mA.
The LDI set point is only in effect when the operating mode is IHBW or ILBW.
"LASER:SET:LDI?" -response: 50.0, means the laser output current set point value is 50.0 mA.