C O M M A N D R E F E R E N C E
GPIB Command Reference
58
MPS-8033
C H A P T E R
4
!
The LASer:POWer? query returns the optical output power in the units of the present display mode.
Parameters
None.
Response
The response data is the optical power in the units of the present display mode.
Notes
This command has the same effect as viewing the display on the 8033 front panel.
Examples
"
LAS:POW?
"
response: 0.5555, indicates the output power is 0.5555 mW.
"
LAS:POWER?
" response: −15.00, indicates the output power is −15 dBm.
The LASer:REFerence command sets the power reference which is used when the dB scale is
displayed.
Parameters
The <nrf value> represents the reference power.
Legal suffixes are:
UW
microwatts
MW
milliwatts
W
watts
DBM
decibels relative to 1 mW
Notes
This command has the same effect as using the
ADJUST KNOB
on the 8033 front panel to adjust
the output power then pressing the
SET REFERENCE
switch. The display is not forced to the dB
scale as it would be from a front panel (local) execution.
If the optional <suffix> is not used, MW is assumed.
The reference power can be set with the output on or off.
Examples
"
LAS:REFERENCE 1.000
"action: Sets the reference power to 1 milliwatt.
"
LAS:REF −6.00 DBM
"action: Sets the reference power to −6.00 dBm.
LASer:POWer?
C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL
LASer:REFerence
C
OMMON
D
EVICE
D
EPENDENT
F
RONT
P
ANEL
Legal reference power
ranges:
MPS−8033/0x
MPS−8033/55
MPS−8033/65
Linear Scale:
.0010 to +1.1000 mW
.0010 to +12.00 mW
.0010 to +22.00 mW
Log Scale:
−20.00 to +0.410 dBm
−20.00 to +10.79 dBm
−20.00 to+13.42 dBm
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