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| Richardson Lab Experimental Log |
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Message ID: 61
Entry time: Tue Apr 4 09:39:58 2023
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| Author: |
Peter |
| Type: |
Update |
| Category: |
VLC Electronics |
| Subject: |
532 M2 Measurements |
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| Final M squared measurements were taken Wednesday, 3/29/23 by Peter and Ryan Hinosawa. 5 separate sets of data were taken, and upon discussion, we declared the plots shown below in attachment 1 and 2 as the final plots of our M squared measurements.
The optical design of the M squared measurement process is given in attachment 3. The laser and three lenses shown below are mounted on the optical table. The track is placed behind the third lens, and the camera is moved along the track to take successive measurements of the beam's width. This will allow us to see a change in the beam's width over its propagation direction.
The raw data is given in attachment 4 as a Beam_Data_8_3lens.txt file. This is eventually what gets used to generate the plots shown below.
The code to run the analysis on these measurements (as well as analysis on the Gaussian intensity profile fitting) can be found:
git@git.ligo.org:uc_riverside/visible-light-cavity.git |
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Cannot create thumbnail, please check ImageMagick installation
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z-z0 x_width y_width x_error y_error
-50 267 304 30 30
-40 227 261 30 30
-30 192 223 30 30
-20 167 194 30 30
-10 153 169 50 50
0 149 154 50 50
10 166 152 50 50
20 198 169 50 50
30 233 195 50 50
... 17 more lines ...
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