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Message ID: 61     Entry time: Tue Apr 4 09:39:58 2023
Author: Peter 
Type: Update 
Category: VLC Electronics 
Subject: 532 M2 Measurements 
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
Attachment 1: OmegaY_M2_Fit_8.pdf  18 kB  | Hide | Hide all | Show all
Cannot create thumbnail, please check ImageMagick installation
Attachment 2: OmegaX_M2_Fit_8.pdf  18 kB  | Hide | Hide all | Show all
Cannot create thumbnail, please check ImageMagick installation
Attachment 3: M2_Measurements_Set_Up.svg  89 kB  Uploaded Wed Apr 5 17:27:16 2023  | Hide | Hide all | Show all
M2_Measurements_Set_Up.svg
Attachment 4: Beam_Data_8_3lens.txt  510 Bytes  Uploaded Wed Apr 5 17:52:17 2023  | Show | Hide all | Show all
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