C O M M A N D R E F E R E N C E
Command Paths
01_10
OMM-6810B
91
C H A P T E R
4
The WAVE:MODE command is used to set the units of the front panel wavelength
display. This command is also used to change the display between absolute and relative
wavelength measurements.
Parameters
The first <string data> parameters represents the display scale as shown below:
NM - nanometers
CM - wavenumbers (CM
-1
)
DELTA - delta wavelength in the current units (NM or CM
-1
)
If the first <string data> is DELTA, then the second <string data> parameter determines
whether or not the
mode is being enabled or disabled as follows:
ON - enable the
mode in the current display units
OFF - disable the
mode; return to absolute measurements in the current display units
Notes
This command is equivalent to pressing the DISPLAY NM/CM
-1
button to change the
wavelength display units or the DISPLAY
button to change the display between
relative and absolute wavelength readings.
Wavelength measurements (see the WAVE? query) are returned in the units of the
present display mode. When the delta lambda function is enabled the absolute
wavelength at that instant becomes the reference point for relative wavelength readings.
Examples
“WAVE:MODE NM” - action: the wavelength display is placed into the nanometers scale
“WAVE:MODE DELTA ON” - action: the absolute wavelength at the time the command is
sent becomes the reference point and the display is forced into the
mode.
WAVE:MODE
F
RONT
P
ANEL
R
EMOTE
:
<white
space>
<string
:
WAVE
MODE
<white
space>
data>
<string
data>