© 2011 Thorlabs
141Application Note
Note
Please note that 'Beam Width' is always the diameter, not the radius of the beam.
6.6
Gaussian Fit Measurement
Gaussian fit is a least-square fit of an ideal Gaussian curve to the X-Y Cross Section
Profiles.
Gaussian Intensity
is the correlation between the beam profiles in a line (X) and column (Y) and its
appropriate Gaussian curve fit
Gaussian Diameter
is the width of the Gaussian fit at the 1/e² intensity level