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Programming Commands
CALCulate3 Subsystem
DELTa:WAVelength[:STATe]
Turns the delta wavelength measurement mode on and off.
Syntax
:CALCulate3:DELTa:WAVelength[:STATe]{?| {ON | OFF | 1 | 0}}
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.
For the CALC3:DATA? query, the power data returned is the array of
absolute powers measured for each laser line. The frequency data is
the array of frequency values normalized to the frequency of the refer-
ence laser line. The frequency of the reference laser line is returned as
an absolute frequency (unnormalized).
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 3-14 for additional informa-
tion on selecting measurements.