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Programming Commands
CALCulate3 Subsystem
DELTa:WPOWer[:STATe]
Turns the delta wavelength and power measurement mode on and off.
Syntax
:CALCulate3:DELTa:WPOWer[: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. 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 refer-
ence laser line is returned as an absolute power (unnormalized).
The frequency data is the array of frequency values normalized to the fre-
quency of the reference 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 4-14 for additional information on selecting
measurements.