ILX Lightwave LDX-32420 User Manual page 76

LASer:LIMit:MDP <Watts>
LASer:LIMit:MDP?
Parameters
Notes
Examples
LASer:LIMit:V <Volts>
LASer:LIMIT:V?
Parameters
Notes
Examples
01_10
LDX-32420 Device-Dependent Command Reference
The LASer:LIMit:MDP command sets the laser monitor photodiode power limit value.
The LASer:LIMit:MDP? query returns the value of the laser monitor photodiode power
limit.
Watts: represents the laser monitor photodiode power limit in W.
When constant MDP mode is used, the output level is limited only by the LIM I value.
Exceeding the power limit will either cause the output to shut off (default) or generate a
warning (see LAS:ENAB:OUTOFF command).
The (LASER) MDP limit is in effect for both laser output current ranges.
The MDP limit is not in effect when CALMD=0. In this case, the monitor current
measurement is not converted to power.
"LAS:LIM:MDP 10" - action: sets the laser output power limit to a value that corresponds
to producing 10.00 W of photodiode feedback (optical) power.
"LAS:LIM:MDP?" - response: 3.0, means the monitor photodiode power limit is set to
3.0 W.
The LASer:LIMit:V command sets the LASER compliance voltage limit value.
The LASer:LIMit:V? query returns the value of the LASER compliance voltage limit
setting.
Volts: represents the LASER limit voltage, in volts.
The voltage limit setting is useful for laser protection. This limit is internal to the LDX-
32420, therefore cable and connection losses must be added in addition to the laser
forward voltage. If the laser is accidentally disconnected, the current source will quickly
sense the over-voltage and shut off.
The voltage limit is valid for all modes of Laser operation.
"LAS:LIM:V 4.0" - action: the LASER compliance voltage limit is set to 4.0 V.
"LAS:LIM:V?" - response: 3.5, means the laser compliance voltage limit is 3.5 V.
C O M M A N D R E F E R E N C E
4
C H A P T E R
F P
RONT ANEL
R
EMOTE
F P
RONT ANEL
R
EMOTE
59
LDX-32420
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