MOGlabs MWM, Manual, Page: 27 / 96

4.2 Main display
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erage of a set number of spectra (see below). The display can be zoomed
into an area around the highest peak using 10x and 25x zoom functions,
and the spectrum can be shown in linear or log form.
2d image inset
The inset shows a 2d image of the area around the highest spectral
peak, which should be approximately Gaussian and symmetric. If the laser
is multi-mode, the main peak will become distorted or even show two
distinct spots.
Wavelength
The calculated wavelength of the highest peak is shown. The wave-
length is measured in ambient conditions (air temperature and pressure)
and converted to vacuum equivalent wavelength, frequency or wavenumber
by selecting the appropriate units. The rms width, fwhm width, or sta-
tistical uncertainty of the wavelength measurement is shown; click on the
number to change which is displayed. The widths are calculated assuming
the spectral peak is Gaussian in shape.
Status bar
The status bar shows temperature and pressure inside the device, the
device serial number, and the communications channel:
IP
address and port
(if using ethernet) or
USB
port. Within the status bar, there is a coloured
indicator region which can be red, yellow or green, a Focus button, a row
number, and an auto-row toggle; these are described in greater detail
below.