© 2011 Thorlabs
139Application Note
X= SUM [x * p(x,y)] / I
Y= SUM [y * p(x,y)] / I
where:
p(x,y) intensity at location (x,y);
I total intensity;
SUM of pixels taken taken over entire area
AD Saturation
Saturation level of the instrument's AD converter.
Total Power
Total power within the Calculation Area .
Effective Area
Area of an ideal flat top beam with same peak intensity:
PixelArea
ityPeakIntens
lsSumAllPixe
A
ef f
*
For calculation into mm² , PixelArea is equal to 6,45*6,45 µm²
Peak Density
Power on peak pixel divided by its area
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