THORLABS M2MS, Operating Manual

Page: 115 / 167

BP209 Series 7 Operation Instructions
Rev: 8.1, 14-Feb-2022 © 2022 Thorlabs Page 113
q
Error message
"The M2 measurement has been aborted because fit cannot be calculated."
·
The calculation of the hyperbolic fit from the measured data points is impossible. Possible
reasons are, for example, that the beam waist is far away from the scan range, or that no
focal lens was used.
· Reset the M² Settings to default - that sets the scan range to its maximum.
· Check your setup to make sure the beam waist is within the scan range.
· If no focal lens was used, only a divergence measurement is possible!
q
Error message
"Waist position outside the scan range. Extend the scan range or switch to divergence mea-
surement."
· The calculation of the hyperbolic fit from the measured data points resulted in a beam
waist position outside the scan range. Usually this happens if the beam waist is close to
one of the scan end positions. Extend the scan range.
· Reset the M² Settings to default - that sets the scan range to its maximum