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CALCulate3 Subsystem 5
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:CALCulate3:DELTa:WPOWer[:STATe]{?| {ON | OFF | 1 | 0}}
Turns the delta wavelength and power measurement
mode on and off.
Attribute Summary
Preset State: off
*RST State: off
SCPI Compliance: instrument specific
Description
When on, the wavelength of the reference laser line is
subtracted from the wavelength values of all laser lines
except the reference. The power value of the reference
is subtracted from the power values of all laser lines
except the reference.
For the CALC3:DATA? query, the power data returned
is the array of powers normalized to the power of the
reference laser line. The power of the reference laser
line is returned as an absolute power (unnormalized).
The frequency data is the array of frequency values nor-
malized to the frequency of the reference laser line. The
frequency of the reference laser line is returned as an
absolute frequency (unnormalized).
:CALCulate3:DRIFt:DIFFerence[:STATe]{?| {ON | OFF | 1 | 0}}
Sets the drift calculation to subtract the minimum val-
ues measured from the maximum values measured.
Attribute Summary
Preset
State: off
*RST State: off
SCPI Compliance: instrument specific
Description
Use the CALC3:DRIF:PRES command to turn off all the
drift states before turning on this state. The
CALC3:DATA? query returns the maximum power and
frequency minus the minimum power and frequency.
Note
Only one STATe command can be turned on at any one time.
Attempting to turn more than one state on at a time results in a
“–221 Settings Conflict” error. Refer to “Measure delta, drift,
and signal-to-noise” on page 4-13 for additional information on
selecting measurements.