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SUS Lab eLog |
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Wed Nov 18 17:49:05 2020, Paco, DailyProgress, Optics, beam profiles 
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Mon Dec 21 16:35:14 2020, Anchal, DailyProgress, Optics, Took beam profile of laser right off the head  
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Tue Dec 22 15:54:03 2020, Anchal, DailyProgress, Optics, Took beam profile of near EOM area
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Mon Dec 28 15:51:51 2020, Anchal, DailyProgress, Optics, Mode matching solution for Cavity
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Thu Dec 31 16:41:59 2020, Anchal, DailyProgress, Optics, Mode matching solution for Cavity
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Wed Jan 6 09:34:34 2021, Anchal, DailyProgress, Optics, Corrected analysis and found better solutions.
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Fri Jan 8 17:00:26 2021, Anchal, DailyProgress, Optics, Included lens made by cavity input mirror and distrotion due to crystal
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Fri Jan 8 17:17:19 2021, Anchal, DailyProgress, Optics, Included lens made by cavity input mirror and distrotion due to crystal
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Tue Jan 26 11:33:32 2021, rana, DailyProgress, Optics, Included lens made by cavity input mirror and distrotion due to crystal
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Tue Jan 26 11:34:51 2021, rana, DailyProgress, Optics, Included lens made by cavity input mirror and distrotion due to crystal
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Message ID: 1882
Entry time: Tue Dec 22 15:54:03 2020
In reply to: 1881
Reply to this: 1884
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Author: |
Anchal |
Type: |
DailyProgress |
Category: |
Optics |
Subject: |
Took beam profile of near EOM area |
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- After installing a 400mm focal length plano-convex lens at 24" from the laser head at (20, 12), we found that higher-order modes are present in the beam.
- We installed an iris at 34" from laser head at (17, 5)
- Configuration file is BeamProfileConfiguration2um.ojf.
- Used fitBeamWidth function of ala mode to fit X and Y beams separately and then their geometric mean.
- We'll use the geometric mean as the seed profile for future calculations.
- Found a beam waist of 306 um at 58" from the laser head.
- Installing the EOM between 49" and 52" from the laser head where the beam waist is between 1 mm and 740 um.
Data
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