BP209 Series
7 Operation Instructions
Rev: 8.1, 14-Feb-2022
© 2022 Thorlabs
Page 127
7.2.8.6 Divergence Measurement Results
The green bulb indicates that the measurement was successful.
These values can also be found in the listing of the complete
Results
.
Negative values indicate a converging beam, while positive values indicate a diverging beam.
Note
All results are calculated from the applied linear fit!
Full Divergence Angle X' (Y')
is explained in chapter
.
Divergence Asymmetry
Asymmetry is the quotient of divergence angles in Y and X scan direc-
tions. Values differing from 1.0 indicate that the beam ellipticity is changing with z position, for
instance an elliptical beam is focused to a round spot.
130
Содержание M2MS
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