stefan.ballmer@LIGO.ORG - posted 12:37, Tuesday 10 July 2018 - last comment - 17:18, Tuesday 10 July 2018(42838)
ITMY (CPY) CO2 laser not aligned at all
Daniel, Thomas, Stefan,
After confirming with the ring heater that the HWS on ITMY is performing well, we again did a CO2 laser heating run. The animated gif is attached - a beautify fringe pattern, but clearly, it needs work.
We put in 3.7W for about 7min, and then shut it off. The attached gif has a snap shot every 60seconds, 20 frames.
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Here is also a movie with the annular mask put in. We can actually see an annular ring section, although there are still inappropriate fringes across.
This curve was done with 6.2W of annular heating. (This was for the same power request as with the central mask.)
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