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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 fre-
quency values normalized to the frequency of the reference laser line. The fre-
quency 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 4-14 for additional information on selecting
measurements.