jkwilborn
November 18, 2024, 7:57pm
2
See if this helps. Sounds like the tube is failing. It’s not that unusual for a big tube to only lase at 20%. I’d check the TEM00 mode to ensure the tube is working correctly.
If you have
properly working tube
aligned and clean optics
proper focus
It will work, so one of these is having a problem.
A proper alignment should start at m1 (mirror 1) examining the beam quality from the source (tube). This should resonate in TEM00 mode or it never will align properly.
I cut targets out of watercolor paper so I can press fit them into the mirror holders.
[target-sheet-crop-tube]
The burn mark needs to be light enough to see the Gaussian power distribution curve acr…
