MOGlabs MWM, Manual, Page: 35 / 96

4.7 Functions
27
LCD
If the
LCD
toggle is on, the measured wavelength will be displayed on the
device
LCD
screen, in current units. This can be helpful for tuning a laser,
if the
MWM
is close to the laser and far from the host computer.
On device
Normally the displayed wavelength is calculated by
mogwave
. If
On device
is selected, the displayed wavelength is that calculated by the device using
a simpler algorithm.
wave mult
The
wave mult
parameter defined in the config file can be used to multi-
ply the measured wavelength by a constant, for example if you are working
with a frequency doubled or parametric downcoverted source. Thus you
might measure the wavelength of a 1064 nm laser but your experiment uses
the 532 nm doubled output, so
wave mult
would be set to 0.5.
4.7 Functions
Start/stop
Starts and stops acquisition and display of spectra and calculated wave-
length.
Exit
To quit
mogwave
.
λ
(
t
) Opens
Time Series
, a new graphing window, which displays the wavelength
measurement as a function of time.
Time
Configures the horizontal (time) axis range. The range will dynamically
update to show all data acquired from when the Time Series window is
opened, or the most recent measurements for a fixed duration if
Fix
is
selected.
Fix
If selected, show only most recent measurements, defined by value in Time
spinbox.
Fast
When selected, the main spectrum is only updated once per second, thus
allowing faster update of the Time Series plot.
Faster
Select device-based wavelength measurements, indicated by cyan coloured
status bar. Device-based measurements are much faster, allowing much